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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "https://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/xhtml;charset=UTF-8"/>
<meta http-equiv="X-UA-Compatible" content="IE=9"/>
<meta name="generator" content="Doxygen 1.8.17"/>
<meta name="viewport" content="width=device-width, initial-scale=1"/>
<title>Clingo C API: Grounding and Solving</title>
<link href="tabs.css" rel="stylesheet" type="text/css"/>
<script type="text/javascript" src="jquery.js"></script>
<script type="text/javascript" src="dynsections.js"></script>
<link href="search/search.css" rel="stylesheet" type="text/css"/>
<script type="text/javascript" src="search/searchdata.js"></script>
<script type="text/javascript" src="search/search.js"></script>
<link href="doxygen.css" rel="stylesheet" type="text/css" />
<link href="clingo.css" rel="stylesheet" type="text/css"/>
</head>
<body>
<div id="top"><!-- do not remove this div, it is closed by doxygen! -->
<div id="titlearea">
<table cellspacing="0" cellpadding="0">
<tbody>
<tr style="height: 56px;">
<td id="projectalign" style="padding-left: 0.5em;">
<div id="projectname">Clingo C API
</div>
<div id="projectbrief">C API for clingo providing high level functions to control grounding and solving.</div>
</td>
</tr>
</tbody>
</table>
</div>
<!-- end header part -->
<!-- Generated by Doxygen 1.8.17 -->
<script type="text/javascript">
/* @license magnet:?xt=urn:btih:cf05388f2679ee054f2beb29a391d25f4e673ac3&dn=gpl-2.0.txt GPL-v2 */
var searchBox = new SearchBox("searchBox", "search",false,'Search');
/* @license-end */
</script>
<script type="text/javascript" src="menudata.js"></script>
<script type="text/javascript" src="menu.js"></script>
<script type="text/javascript">
/* @license magnet:?xt=urn:btih:cf05388f2679ee054f2beb29a391d25f4e673ac3&dn=gpl-2.0.txt GPL-v2 */
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initMenu('',true,false,'search.php','Search');
$(document).ready(function() { init_search(); });
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/* @license-end */</script>
<div id="main-nav"></div>
</div><!-- top -->
<!-- window showing the filter options -->
<div id="MSearchSelectWindow"
onmouseover="return searchBox.OnSearchSelectShow()"
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onkeydown="return searchBox.OnSearchSelectKey(event)">
</div>
<!-- iframe showing the search results (closed by default) -->
<div id="MSearchResultsWindow">
<iframe src="javascript:void(0)" frameborder="0"
name="MSearchResults" id="MSearchResults">
</iframe>
</div>
<div class="header">
<div class="summary">
<a href="#groups">Modules</a> |
<a href="#nested-classes">Classes</a> |
<a href="#typedef-members">Typedefs</a> |
<a href="#enum-members">Enumerations</a> |
<a href="#enumval-members">Enumerator</a> |
<a href="#func-members">Functions</a> </div>
<div class="headertitle">
<div class="title">Grounding and Solving</div> </div>
</div><!--header-->
<div class="contents">
<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<p>Functions to control the grounding and solving process. </p>
<p>For an example, see <a class="el" href="control_8c-example.html">control.c</a>. </p>
<table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="groups"></a>
Modules</h2></td></tr>
<tr class="memitem:group__SymbolicAtoms"><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="group__SymbolicAtoms.html">Symbolic Atom Inspection</a></td></tr>
<tr class="memdesc:group__SymbolicAtoms"><td class="mdescLeft"> </td><td class="mdescRight">Inspection of atoms occurring in ground logic programs. <br /></td></tr>
<tr class="separator:"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:group__TheoryAtoms"><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="group__TheoryAtoms.html">Theory Atom Inspection</a></td></tr>
<tr class="memdesc:group__TheoryAtoms"><td class="mdescLeft"> </td><td class="mdescRight">Inspection of theory atoms occurring in ground logic programs. <br /></td></tr>
<tr class="separator:"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:group__Propagator"><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="group__Propagator.html">Theory Propagation</a></td></tr>
<tr class="memdesc:group__Propagator"><td class="mdescLeft"> </td><td class="mdescRight">Extend the search with propagators for arbitrary theories. <br /></td></tr>
<tr class="separator:"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:group__ProgramBuilder"><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="group__ProgramBuilder.html">Program Building</a></td></tr>
<tr class="memdesc:group__ProgramBuilder"><td class="mdescLeft"> </td><td class="mdescRight">Add non-ground program representations (ASTs) to logic programs or extend the ground (aspif) program. <br /></td></tr>
<tr class="separator:"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:group__Configuration"><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="group__Configuration.html">Solver Configuration</a></td></tr>
<tr class="memdesc:group__Configuration"><td class="mdescLeft"> </td><td class="mdescRight">Configuration of search and enumeration algorithms. <br /></td></tr>
<tr class="separator:"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:group__Statistics"><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="group__Statistics.html">Statistics</a></td></tr>
<tr class="memdesc:group__Statistics"><td class="mdescLeft"> </td><td class="mdescRight">Inspect search and problem statistics. <br /></td></tr>
<tr class="separator:"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:group__Model"><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="group__Model.html">Model Inspection</a></td></tr>
<tr class="memdesc:group__Model"><td class="mdescLeft"> </td><td class="mdescRight">Inspection of models and a high-level interface to add constraints during solving. <br /></td></tr>
<tr class="separator:"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:group__SolveHandle"><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="group__SolveHandle.html">Solving</a></td></tr>
<tr class="memdesc:group__SolveHandle"><td class="mdescLeft"> </td><td class="mdescRight">Interact with a running search. <br /></td></tr>
<tr class="separator:"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:group__ProgramInspection"><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="group__ProgramInspection.html">Program Inspection</a></td></tr>
<tr class="memdesc:group__ProgramInspection"><td class="mdescLeft"> </td><td class="mdescRight">Functions and data structures to inspect programs. <br /></td></tr>
<tr class="separator:"><td class="memSeparator" colspan="2"> </td></tr>
</table><table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="nested-classes"></a>
Classes</h2></td></tr>
<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">struct  </td><td class="memItemRight" valign="bottom"><a class="el" href="structclingo__part.html">clingo_part</a></td></tr>
<tr class="memdesc:"><td class="mdescLeft"> </td><td class="mdescRight">Struct used to specify the program parts that have to be grounded. <a href="structclingo__part.html#details">More...</a><br /></td></tr>
<tr class="separator:"><td class="memSeparator" colspan="2"> </td></tr>
</table><table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="typedef-members"></a>
Typedefs</h2></td></tr>
<tr class="memitem:ga513a00ca49d65802f0d4ea197e0c410b"><td class="memItemLeft" align="right" valign="top">typedef struct <a class="el" href="structclingo__part.html">clingo_part</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group__Control.html#ga513a00ca49d65802f0d4ea197e0c410b">clingo_part_t</a></td></tr>
<tr class="memdesc:ga513a00ca49d65802f0d4ea197e0c410b"><td class="mdescLeft"> </td><td class="mdescRight">Struct used to specify the program parts that have to be grounded. <a href="group__Control.html#ga513a00ca49d65802f0d4ea197e0c410b">More...</a><br /></td></tr>
<tr class="separator:ga513a00ca49d65802f0d4ea197e0c410b"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ga979ef1d6a28304ffb6966deff83d3e0f"><td class="memItemLeft" align="right" valign="top">typedef bool(* </td><td class="memItemRight" valign="bottom"><a class="el" href="group__Control.html#ga979ef1d6a28304ffb6966deff83d3e0f">clingo_ground_callback_t</a>) (<a class="el" href="group__BasicTypes.html#ga571fc9a06d35671fd38b134b4e502633">clingo_location_t</a> const *location, char const *name, <a class="el" href="group__Symbols.html#ga6c75c60fa57c3b97505265ff08f6f951">clingo_symbol_t</a> const *arguments, size_t arguments_size, void *data, <a class="el" href="group__SymbolicAtoms.html#ga2b90cb7057487f8ad261a42bc0977d60">clingo_symbol_callback_t</a> symbol_callback, void *symbol_callback_data)</td></tr>
<tr class="memdesc:ga979ef1d6a28304ffb6966deff83d3e0f"><td class="mdescLeft"> </td><td class="mdescRight">Callback function to implement external functions. <a href="group__Control.html#ga979ef1d6a28304ffb6966deff83d3e0f">More...</a><br /></td></tr>
<tr class="separator:ga979ef1d6a28304ffb6966deff83d3e0f"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:gaf008e9db9dbb37b0b7ef039bb9d582f0"><td class="memItemLeft" align="right" valign="top"><a id="gaf008e9db9dbb37b0b7ef039bb9d582f0"></a>
typedef struct clingo_control </td><td class="memItemRight" valign="bottom"><a class="el" href="group__Control.html#gaf008e9db9dbb37b0b7ef039bb9d582f0">clingo_control_t</a></td></tr>
<tr class="memdesc:gaf008e9db9dbb37b0b7ef039bb9d582f0"><td class="mdescLeft"> </td><td class="mdescRight">Control object holding grounding and solving state. <br /></td></tr>
<tr class="separator:gaf008e9db9dbb37b0b7ef039bb9d582f0"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:gae917a23b0591d181004ec88c4e3291c1"><td class="memItemLeft" align="right" valign="top">typedef unsigned </td><td class="memItemRight" valign="bottom"><a class="el" href="group__Control.html#gae917a23b0591d181004ec88c4e3291c1">clingo_solve_result_bitset_t</a></td></tr>
<tr class="separator:gae917a23b0591d181004ec88c4e3291c1"><td class="memSeparator" colspan="2"> </td></tr>
</table><table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="enum-members"></a>
Enumerations</h2></td></tr>
<tr class="memitem:ga152eeb260a8162fbf9bc432a1b912bc7"><td class="memItemLeft" align="right" valign="top">enum  </td><td class="memItemRight" valign="bottom"><a class="el" href="group__Control.html#ga152eeb260a8162fbf9bc432a1b912bc7">clingo_solve_result_e</a> { <a class="el" href="group__Control.html#gga152eeb260a8162fbf9bc432a1b912bc7ae71ed354490afbb3b9c6d6ea9d20910d">clingo_solve_result_satisfiable</a> = 1,
<a class="el" href="group__Control.html#gga152eeb260a8162fbf9bc432a1b912bc7a313b2d51ea0b84abc2cd28e44d98be77">clingo_solve_result_unsatisfiable</a> = 2,
<a class="el" href="group__Control.html#gga152eeb260a8162fbf9bc432a1b912bc7a9f6904e39554c1bb16e2339fd534eafd">clingo_solve_result_exhausted</a> = 4,
<a class="el" href="group__Control.html#gga152eeb260a8162fbf9bc432a1b912bc7a9f32a002b3f8a88c6ca4e347e91af1eb">clingo_solve_result_interrupted</a> = 8
}</td></tr>
<tr class="separator:ga152eeb260a8162fbf9bc432a1b912bc7"><td class="memSeparator" colspan="2"> </td></tr>
</table><table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="func-members"></a>
Functions</h2></td></tr>
<tr class="memitem:ga7ec38c676e45447bab71278b51e090c6"><td class="memItemLeft" align="right" valign="top">CLINGO_VISIBILITY_DEFAULT bool </td><td class="memItemRight" valign="bottom"><a class="el" href="group__Control.html#ga7ec38c676e45447bab71278b51e090c6">clingo_control_new</a> (char const *const *arguments, size_t arguments_size, <a class="el" href="group__BasicTypes.html#ga0cddd4c84a531b5c64a4774566ddc9ef">clingo_logger_t</a> logger, void *logger_data, unsigned message_limit, <a class="el" href="group__Control.html#gaf008e9db9dbb37b0b7ef039bb9d582f0">clingo_control_t</a> **control)</td></tr>
<tr class="memdesc:ga7ec38c676e45447bab71278b51e090c6"><td class="mdescLeft"> </td><td class="mdescRight">Create a new control object. <a href="group__Control.html#ga7ec38c676e45447bab71278b51e090c6">More...</a><br /></td></tr>
<tr class="separator:ga7ec38c676e45447bab71278b51e090c6"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ga849604bd7107e6948a0e08e1dc10178a"><td class="memItemLeft" align="right" valign="top">CLINGO_VISIBILITY_DEFAULT void </td><td class="memItemRight" valign="bottom"><a class="el" href="group__Control.html#ga849604bd7107e6948a0e08e1dc10178a">clingo_control_free</a> (<a class="el" href="group__Control.html#gaf008e9db9dbb37b0b7ef039bb9d582f0">clingo_control_t</a> *control)</td></tr>
<tr class="memdesc:ga849604bd7107e6948a0e08e1dc10178a"><td class="mdescLeft"> </td><td class="mdescRight">Free a control object created with <a class="el" href="group__Control.html#ga7ec38c676e45447bab71278b51e090c6" title="Create a new control object.">clingo_control_new()</a>. <a href="group__Control.html#ga849604bd7107e6948a0e08e1dc10178a">More...</a><br /></td></tr>
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Grounding Functions</h2></td></tr>
<tr class="memitem:gacd916338afc7dd07cb33ae3eca50353d"><td class="memItemLeft" align="right" valign="top">CLINGO_VISIBILITY_DEFAULT bool </td><td class="memItemRight" valign="bottom"><a class="el" href="group__Control.html#gacd916338afc7dd07cb33ae3eca50353d">clingo_control_load</a> (<a class="el" href="group__Control.html#gaf008e9db9dbb37b0b7ef039bb9d582f0">clingo_control_t</a> *control, char const *file)</td></tr>
<tr class="memdesc:gacd916338afc7dd07cb33ae3eca50353d"><td class="mdescLeft"> </td><td class="mdescRight">Extend the logic program with a program in a file. <a href="group__Control.html#gacd916338afc7dd07cb33ae3eca50353d">More...</a><br /></td></tr>
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<tr class="memitem:gada7b7f54331abfedf60fac33d742c0dc"><td class="memItemLeft" align="right" valign="top">CLINGO_VISIBILITY_DEFAULT bool </td><td class="memItemRight" valign="bottom"><a class="el" href="group__Control.html#gada7b7f54331abfedf60fac33d742c0dc">clingo_control_add</a> (<a class="el" href="group__Control.html#gaf008e9db9dbb37b0b7ef039bb9d582f0">clingo_control_t</a> *control, char const *name, char const *const *parameters, size_t parameters_size, char const *program)</td></tr>
<tr class="memdesc:gada7b7f54331abfedf60fac33d742c0dc"><td class="mdescLeft"> </td><td class="mdescRight">Extend the logic program with the given non-ground logic program in string form. <a href="group__Control.html#gada7b7f54331abfedf60fac33d742c0dc">More...</a><br /></td></tr>
<tr class="separator:gada7b7f54331abfedf60fac33d742c0dc"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:gaf85b77055668171e6a85f9d729719b57"><td class="memItemLeft" align="right" valign="top">CLINGO_VISIBILITY_DEFAULT bool </td><td class="memItemRight" valign="bottom"><a class="el" href="group__Control.html#gaf85b77055668171e6a85f9d729719b57">clingo_control_ground</a> (<a class="el" href="group__Control.html#gaf008e9db9dbb37b0b7ef039bb9d582f0">clingo_control_t</a> *control, <a class="el" href="group__Control.html#ga513a00ca49d65802f0d4ea197e0c410b">clingo_part_t</a> const *parts, size_t parts_size, <a class="el" href="group__Control.html#ga979ef1d6a28304ffb6966deff83d3e0f">clingo_ground_callback_t</a> ground_callback, void *ground_callback_data)</td></tr>
<tr class="memdesc:gaf85b77055668171e6a85f9d729719b57"><td class="mdescLeft"> </td><td class="mdescRight">Ground the selected <a class="el" href="structclingo__part.html">parts </a> of the current (non-ground) logic program. <a href="group__Control.html#gaf85b77055668171e6a85f9d729719b57">More...</a><br /></td></tr>
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Solving Functions</h2></td></tr>
<tr class="memitem:ga4b3b7388e75ace676481f6021c4dc66d"><td class="memItemLeft" align="right" valign="top">CLINGO_VISIBILITY_DEFAULT bool </td><td class="memItemRight" valign="bottom"><a class="el" href="group__Control.html#ga4b3b7388e75ace676481f6021c4dc66d">clingo_control_solve</a> (<a class="el" href="group__Control.html#gaf008e9db9dbb37b0b7ef039bb9d582f0">clingo_control_t</a> *control, <a class="el" href="group__SolveHandle.html#gad429252492888205c9de9a295a724496">clingo_solve_mode_bitset_t</a> mode, <a class="el" href="group__BasicTypes.html#gaa95dd19334e536397bbad174c8fa4ff8">clingo_literal_t</a> const *assumptions, size_t assumptions_size, <a class="el" href="group__SolveHandle.html#ga721ae13385f81fca6b6c6b8f5b0fa416">clingo_solve_event_callback_t</a> notify, void *data, <a class="el" href="group__SolveHandle.html#ga023c1084a4c01ea6e121a8310efba045">clingo_solve_handle_t</a> **handle)</td></tr>
<tr class="memdesc:ga4b3b7388e75ace676481f6021c4dc66d"><td class="mdescLeft"> </td><td class="mdescRight">Solve the currently <a class="el" href="group__Control.html#gaf85b77055668171e6a85f9d729719b57">grounded </a> logic program enumerating its models. <a href="group__Control.html#ga4b3b7388e75ace676481f6021c4dc66d">More...</a><br /></td></tr>
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<tr class="memitem:gac7fc639c48f288620ba27c48b82034a8"><td class="memItemLeft" align="right" valign="top">CLINGO_VISIBILITY_DEFAULT bool </td><td class="memItemRight" valign="bottom"><a class="el" href="group__Control.html#gac7fc639c48f288620ba27c48b82034a8">clingo_control_cleanup</a> (<a class="el" href="group__Control.html#gaf008e9db9dbb37b0b7ef039bb9d582f0">clingo_control_t</a> *control)</td></tr>
<tr class="memdesc:gac7fc639c48f288620ba27c48b82034a8"><td class="mdescLeft"> </td><td class="mdescRight">Clean up the domains of the grounding component using the solving component's top level assignment. <a href="group__Control.html#gac7fc639c48f288620ba27c48b82034a8">More...</a><br /></td></tr>
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<tr class="memitem:ga27f0fe2e063f6a5bda363bde93cf73b9"><td class="memItemLeft" align="right" valign="top">CLINGO_VISIBILITY_DEFAULT bool </td><td class="memItemRight" valign="bottom"><a class="el" href="group__Control.html#ga27f0fe2e063f6a5bda363bde93cf73b9">clingo_control_assign_external</a> (<a class="el" href="group__Control.html#gaf008e9db9dbb37b0b7ef039bb9d582f0">clingo_control_t</a> *control, <a class="el" href="group__BasicTypes.html#gaa95dd19334e536397bbad174c8fa4ff8">clingo_literal_t</a> literal, <a class="el" href="group__BasicTypes.html#gaa0ab8583c1ef07fe6bc362277506b867">clingo_truth_value_t</a> value)</td></tr>
<tr class="memdesc:ga27f0fe2e063f6a5bda363bde93cf73b9"><td class="mdescLeft"> </td><td class="mdescRight">Assign a truth value to an external atom. <a href="group__Control.html#ga27f0fe2e063f6a5bda363bde93cf73b9">More...</a><br /></td></tr>
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<tr class="memitem:ga95b123aae9d0c5dd71cc539f9f6840ae"><td class="memItemLeft" align="right" valign="top">CLINGO_VISIBILITY_DEFAULT bool </td><td class="memItemRight" valign="bottom"><a class="el" href="group__Control.html#ga95b123aae9d0c5dd71cc539f9f6840ae">clingo_control_release_external</a> (<a class="el" href="group__Control.html#gaf008e9db9dbb37b0b7ef039bb9d582f0">clingo_control_t</a> *control, <a class="el" href="group__BasicTypes.html#gaa95dd19334e536397bbad174c8fa4ff8">clingo_literal_t</a> literal)</td></tr>
<tr class="memdesc:ga95b123aae9d0c5dd71cc539f9f6840ae"><td class="mdescLeft"> </td><td class="mdescRight">Release an external atom. <a href="group__Control.html#ga95b123aae9d0c5dd71cc539f9f6840ae">More...</a><br /></td></tr>
<tr class="separator:ga95b123aae9d0c5dd71cc539f9f6840ae"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ga5f1c3f9cbd1d7b2936038f05d3110747"><td class="memItemLeft" align="right" valign="top">CLINGO_VISIBILITY_DEFAULT bool </td><td class="memItemRight" valign="bottom"><a class="el" href="group__Control.html#ga5f1c3f9cbd1d7b2936038f05d3110747">clingo_control_register_propagator</a> (<a class="el" href="group__Control.html#gaf008e9db9dbb37b0b7ef039bb9d582f0">clingo_control_t</a> *control, <a class="el" href="group__Propagator.html#gacdbe981e495ad77765ba457eeeea517b">clingo_propagator_t</a> const *propagator, void *data, bool sequential)</td></tr>
<tr class="memdesc:ga5f1c3f9cbd1d7b2936038f05d3110747"><td class="mdescLeft"> </td><td class="mdescRight">Register a custom propagator with the control object. <a href="group__Control.html#ga5f1c3f9cbd1d7b2936038f05d3110747">More...</a><br /></td></tr>
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<tr class="memitem:gae452e6b873a192932f4610fb186ed575"><td class="memItemLeft" align="right" valign="top">CLINGO_VISIBILITY_DEFAULT bool </td><td class="memItemRight" valign="bottom"><a class="el" href="group__Control.html#gae452e6b873a192932f4610fb186ed575">clingo_control_is_conflicting</a> (<a class="el" href="group__Control.html#gaf008e9db9dbb37b0b7ef039bb9d582f0">clingo_control_t</a> const *control)</td></tr>
<tr class="memdesc:gae452e6b873a192932f4610fb186ed575"><td class="mdescLeft"> </td><td class="mdescRight">Check if the solver has determined that the internal program representation is conflicting. <a href="group__Control.html#gae452e6b873a192932f4610fb186ed575">More...</a><br /></td></tr>
<tr class="separator:gae452e6b873a192932f4610fb186ed575"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ga0b6c40337fd896ad88f265d33a3c8cfb"><td class="memItemLeft" align="right" valign="top">CLINGO_VISIBILITY_DEFAULT bool </td><td class="memItemRight" valign="bottom"><a class="el" href="group__Control.html#ga0b6c40337fd896ad88f265d33a3c8cfb">clingo_control_statistics</a> (<a class="el" href="group__Control.html#gaf008e9db9dbb37b0b7ef039bb9d582f0">clingo_control_t</a> const *control, <a class="el" href="group__Statistics.html#gaaba3981b0eb26dcf3e1b2043245e2516">clingo_statistics_t</a> const **statistics)</td></tr>
<tr class="memdesc:ga0b6c40337fd896ad88f265d33a3c8cfb"><td class="mdescLeft"> </td><td class="mdescRight">Get a statistics object to inspect solver statistics. <a href="group__Control.html#ga0b6c40337fd896ad88f265d33a3c8cfb">More...</a><br /></td></tr>
<tr class="separator:ga0b6c40337fd896ad88f265d33a3c8cfb"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ga68d85962372b1258bc6726753cdecaa8"><td class="memItemLeft" align="right" valign="top">CLINGO_VISIBILITY_DEFAULT void </td><td class="memItemRight" valign="bottom"><a class="el" href="group__Control.html#ga68d85962372b1258bc6726753cdecaa8">clingo_control_interrupt</a> (<a class="el" href="group__Control.html#gaf008e9db9dbb37b0b7ef039bb9d582f0">clingo_control_t</a> *control)</td></tr>
<tr class="memdesc:ga68d85962372b1258bc6726753cdecaa8"><td class="mdescLeft"> </td><td class="mdescRight">Interrupt the active solve call (or the following solve call right at the beginning). <a href="group__Control.html#ga68d85962372b1258bc6726753cdecaa8">More...</a><br /></td></tr>
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<tr class="memitem:ga760ff1d643214e60deda003b18df5f50"><td class="memItemLeft" align="right" valign="top">CLINGO_VISIBILITY_DEFAULT bool </td><td class="memItemRight" valign="bottom"><a class="el" href="group__Control.html#ga760ff1d643214e60deda003b18df5f50">clingo_control_clasp_facade</a> (<a class="el" href="group__Control.html#gaf008e9db9dbb37b0b7ef039bb9d582f0">clingo_control_t</a> *control, void **clasp)</td></tr>
<tr class="memdesc:ga760ff1d643214e60deda003b18df5f50"><td class="mdescLeft"> </td><td class="mdescRight">Get low-level access to clasp. <a href="group__Control.html#ga760ff1d643214e60deda003b18df5f50">More...</a><br /></td></tr>
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Configuration Functions</h2></td></tr>
<tr class="memitem:ga508042ea216ddfd24f4278310cc25321"><td class="memItemLeft" align="right" valign="top">CLINGO_VISIBILITY_DEFAULT bool </td><td class="memItemRight" valign="bottom"><a class="el" href="group__Control.html#ga508042ea216ddfd24f4278310cc25321">clingo_control_configuration</a> (<a class="el" href="group__Control.html#gaf008e9db9dbb37b0b7ef039bb9d582f0">clingo_control_t</a> *control, <a class="el" href="group__Configuration.html#gabf3ac9f48abde87a53cdba386f21bc2f">clingo_configuration_t</a> **configuration)</td></tr>
<tr class="memdesc:ga508042ea216ddfd24f4278310cc25321"><td class="mdescLeft"> </td><td class="mdescRight">Get a configuration object to change the solver configuration. <a href="group__Control.html#ga508042ea216ddfd24f4278310cc25321">More...</a><br /></td></tr>
<tr class="separator:ga508042ea216ddfd24f4278310cc25321"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:gac187ead59bcf0d56e3f1b32173b66fbc"><td class="memItemLeft" align="right" valign="top">CLINGO_VISIBILITY_DEFAULT bool </td><td class="memItemRight" valign="bottom"><a class="el" href="group__Control.html#gac187ead59bcf0d56e3f1b32173b66fbc">clingo_control_set_enable_enumeration_assumption</a> (<a class="el" href="group__Control.html#gaf008e9db9dbb37b0b7ef039bb9d582f0">clingo_control_t</a> *control, bool enable)</td></tr>
<tr class="memdesc:gac187ead59bcf0d56e3f1b32173b66fbc"><td class="mdescLeft"> </td><td class="mdescRight">Configure how learnt constraints are handled during enumeration. <a href="group__Control.html#gac187ead59bcf0d56e3f1b32173b66fbc">More...</a><br /></td></tr>
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<tr class="memitem:gac314d4977431400167a19517d7898506"><td class="memItemLeft" align="right" valign="top">CLINGO_VISIBILITY_DEFAULT bool </td><td class="memItemRight" valign="bottom"><a class="el" href="group__Control.html#gac314d4977431400167a19517d7898506">clingo_control_get_enable_enumeration_assumption</a> (<a class="el" href="group__Control.html#gaf008e9db9dbb37b0b7ef039bb9d582f0">clingo_control_t</a> *control)</td></tr>
<tr class="memdesc:gac314d4977431400167a19517d7898506"><td class="mdescLeft"> </td><td class="mdescRight">Check whether the enumeration assumption is enabled. <a href="group__Control.html#gac314d4977431400167a19517d7898506">More...</a><br /></td></tr>
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<tr class="memitem:ga80f6b805d0c00e7534e500e83f375a3a"><td class="memItemLeft" align="right" valign="top">CLINGO_VISIBILITY_DEFAULT bool </td><td class="memItemRight" valign="bottom"><a class="el" href="group__Control.html#ga80f6b805d0c00e7534e500e83f375a3a">clingo_control_set_enable_cleanup</a> (<a class="el" href="group__Control.html#gaf008e9db9dbb37b0b7ef039bb9d582f0">clingo_control_t</a> *control, bool enable)</td></tr>
<tr class="memdesc:ga80f6b805d0c00e7534e500e83f375a3a"><td class="mdescLeft"> </td><td class="mdescRight">Enable automatic cleanup after solving. <a href="group__Control.html#ga80f6b805d0c00e7534e500e83f375a3a">More...</a><br /></td></tr>
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<tr class="memitem:gaa32cf1e7ee706e161ff8bf8b115102a3"><td class="memItemLeft" align="right" valign="top">CLINGO_VISIBILITY_DEFAULT bool </td><td class="memItemRight" valign="bottom"><a class="el" href="group__Control.html#gaa32cf1e7ee706e161ff8bf8b115102a3">clingo_control_get_enable_cleanup</a> (<a class="el" href="group__Control.html#gaf008e9db9dbb37b0b7ef039bb9d582f0">clingo_control_t</a> *control)</td></tr>
<tr class="memdesc:gaa32cf1e7ee706e161ff8bf8b115102a3"><td class="mdescLeft"> </td><td class="mdescRight">Check whether automatic cleanup is enabled. <a href="group__Control.html#gaa32cf1e7ee706e161ff8bf8b115102a3">More...</a><br /></td></tr>
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Program Inspection Functions</h2></td></tr>
<tr class="memitem:ga2f35442f2f44511d39b9479562d86945"><td class="memItemLeft" align="right" valign="top">CLINGO_VISIBILITY_DEFAULT bool </td><td class="memItemRight" valign="bottom"><a class="el" href="group__Control.html#ga2f35442f2f44511d39b9479562d86945">clingo_control_get_const</a> (<a class="el" href="group__Control.html#gaf008e9db9dbb37b0b7ef039bb9d582f0">clingo_control_t</a> const *control, char const *name, <a class="el" href="group__Symbols.html#ga6c75c60fa57c3b97505265ff08f6f951">clingo_symbol_t</a> *symbol)</td></tr>
<tr class="memdesc:ga2f35442f2f44511d39b9479562d86945"><td class="mdescLeft"> </td><td class="mdescRight">Return the symbol for a constant definition of form: <code>#const name = symbol</code>. <a href="group__Control.html#ga2f35442f2f44511d39b9479562d86945">More...</a><br /></td></tr>
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<tr class="memitem:gacb207117479ca66725a1b45fc09e2950"><td class="memItemLeft" align="right" valign="top">CLINGO_VISIBILITY_DEFAULT bool </td><td class="memItemRight" valign="bottom"><a class="el" href="group__Control.html#gacb207117479ca66725a1b45fc09e2950">clingo_control_has_const</a> (<a class="el" href="group__Control.html#gaf008e9db9dbb37b0b7ef039bb9d582f0">clingo_control_t</a> const *control, char const *name, bool *exists)</td></tr>
<tr class="memdesc:gacb207117479ca66725a1b45fc09e2950"><td class="mdescLeft"> </td><td class="mdescRight">Check if there is a constant definition for the given constant. <a href="group__Control.html#gacb207117479ca66725a1b45fc09e2950">More...</a><br /></td></tr>
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<tr class="memitem:ga2686c7f31210320fbb6a3c94a6efaaf2"><td class="memItemLeft" align="right" valign="top">CLINGO_VISIBILITY_DEFAULT bool </td><td class="memItemRight" valign="bottom"><a class="el" href="group__Control.html#ga2686c7f31210320fbb6a3c94a6efaaf2">clingo_control_symbolic_atoms</a> (<a class="el" href="group__Control.html#gaf008e9db9dbb37b0b7ef039bb9d582f0">clingo_control_t</a> const *control, <a class="el" href="group__SymbolicAtoms.html#ga48f4026c13a49553efce213e76ab32aa">clingo_symbolic_atoms_t</a> const **atoms)</td></tr>
<tr class="memdesc:ga2686c7f31210320fbb6a3c94a6efaaf2"><td class="mdescLeft"> </td><td class="mdescRight">Get an object to inspect symbolic atoms (the relevant Herbrand base) used for grounding. <a href="group__Control.html#ga2686c7f31210320fbb6a3c94a6efaaf2">More...</a><br /></td></tr>
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<tr class="memitem:ga7c285bba4c09d439bcae92b0d9f535f0"><td class="memItemLeft" align="right" valign="top">CLINGO_VISIBILITY_DEFAULT bool </td><td class="memItemRight" valign="bottom"><a class="el" href="group__Control.html#ga7c285bba4c09d439bcae92b0d9f535f0">clingo_control_theory_atoms</a> (<a class="el" href="group__Control.html#gaf008e9db9dbb37b0b7ef039bb9d582f0">clingo_control_t</a> const *control, <a class="el" href="group__TheoryAtoms.html#gab49a73a85ca5a2448e2c7ddcdb489eeb">clingo_theory_atoms_t</a> const **atoms)</td></tr>
<tr class="memdesc:ga7c285bba4c09d439bcae92b0d9f535f0"><td class="mdescLeft"> </td><td class="mdescRight">Get an object to inspect theory atoms that occur in the grounding. <a href="group__Control.html#ga7c285bba4c09d439bcae92b0d9f535f0">More...</a><br /></td></tr>
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<tr class="memitem:gab364e82a488e4c9df956054caca80d08"><td class="memItemLeft" align="right" valign="top">CLINGO_VISIBILITY_DEFAULT bool </td><td class="memItemRight" valign="bottom"><a class="el" href="group__Control.html#gab364e82a488e4c9df956054caca80d08">clingo_control_register_observer</a> (<a class="el" href="group__Control.html#gaf008e9db9dbb37b0b7ef039bb9d582f0">clingo_control_t</a> *control, <a class="el" href="group__ProgramInspection.html#ga66dd90d4761c5cbf97ed73245ea5b562">clingo_ground_program_observer_t</a> const *observer, bool replace, void *data)</td></tr>
<tr class="memdesc:gab364e82a488e4c9df956054caca80d08"><td class="mdescLeft"> </td><td class="mdescRight">Register a program observer with the control object. <a href="group__Control.html#gab364e82a488e4c9df956054caca80d08">More...</a><br /></td></tr>
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<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="member-group"></a>
Program Modification Functions</h2></td></tr>
<tr class="memitem:ga640809e4c7f92347d28f28c22b09008b"><td class="memItemLeft" align="right" valign="top">CLINGO_VISIBILITY_DEFAULT bool </td><td class="memItemRight" valign="bottom"><a class="el" href="group__Control.html#ga640809e4c7f92347d28f28c22b09008b">clingo_control_backend</a> (<a class="el" href="group__Control.html#gaf008e9db9dbb37b0b7ef039bb9d582f0">clingo_control_t</a> *control, <a class="el" href="group__ProgramBuilder.html#ga5e9458723e4631599ada46f8748ca577">clingo_backend_t</a> **backend)</td></tr>
<tr class="memdesc:ga640809e4c7f92347d28f28c22b09008b"><td class="mdescLeft"> </td><td class="mdescRight">Get an object to add ground directives to the program. <a href="group__Control.html#ga640809e4c7f92347d28f28c22b09008b">More...</a><br /></td></tr>
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<h2 class="groupheader">Typedef Documentation</h2>
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<h2 class="memtitle"><span class="permalink"><a href="#ga979ef1d6a28304ffb6966deff83d3e0f">◆ </a></span>clingo_ground_callback_t</h2>
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<td class="memname">typedef bool(* clingo_ground_callback_t) (<a class="el" href="group__BasicTypes.html#ga571fc9a06d35671fd38b134b4e502633">clingo_location_t</a> const *location, char const *name, <a class="el" href="group__Symbols.html#ga6c75c60fa57c3b97505265ff08f6f951">clingo_symbol_t</a> const *arguments, size_t arguments_size, void *data, <a class="el" href="group__SymbolicAtoms.html#ga2b90cb7057487f8ad261a42bc0977d60">clingo_symbol_callback_t</a> symbol_callback, void *symbol_callback_data)</td>
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<p>Callback function to implement external functions. </p>
<p>If an external function of form <code>@name(parameters)</code> occurs in a logic program, then this function is called with its location, name, parameters, and a callback to inject symbols as arguments. The callback can be called multiple times; all symbols passed are injected.</p>
<p>If a (non-recoverable) clingo API function fails in this callback, for example, the symbol callback, the callback must return false. In case of errors not related to clingo, this function can set error <a class="el" href="group__BasicTypes.html#ggaebdf91a4187db9abdd2c6ceb971cf13eaf0ac62d4f86f97849bc7fd25dbbfb676" title="errors unrelated to clingo">clingo_error_unknown</a> and return false to stop grounding with an error.</p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramdir">[in]</td><td class="paramname">location</td><td>location from which the external function was called </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">name</td><td>name of the called external function </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">arguments</td><td>arguments of the called external function </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">arguments_size</td><td>number of arguments </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">data</td><td>user data of the callback </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">symbol_callback</td><td>function to inject symbols </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">symbol_callback_data</td><td>user data for the symbol callback (must be passed untouched) </td></tr>
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</dd>
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<dl class="section return"><dt>Returns</dt><dd>whether the call was successful </dd></dl>
<dl class="section see"><dt>See also</dt><dd><a class="el" href="group__Control.html#gaf85b77055668171e6a85f9d729719b57" title="Ground the selected parts of the current (non-ground) logic program.">clingo_control_ground()</a></dd></dl>
<p>The following example implements the external function <code>@f()</code> returning 42. </p><div class="fragment"><div class="line"><span class="keywordtype">bool</span></div>
<div class="line">ground_callback(<a class="code" href="structclingo__location.html">clingo_location_t</a> <span class="keyword">const</span> *location,</div>
<div class="line"> <span class="keywordtype">char</span> <span class="keyword">const</span> *name,</div>
<div class="line"> <a class="code" href="group__Symbols.html#ga6c75c60fa57c3b97505265ff08f6f951">clingo_symbol_t</a> <span class="keyword">const</span> *arguments,</div>
<div class="line"> <span class="keywordtype">size_t</span> arguments_size,</div>
<div class="line"> <span class="keywordtype">void</span> *data,</div>
<div class="line"> <a class="code" href="group__SymbolicAtoms.html#ga2b90cb7057487f8ad261a42bc0977d60">clingo_symbol_callback_t</a> symbol_callback,</div>
<div class="line"> <span class="keywordtype">void</span> *symbol_callback_data) {</div>
<div class="line"> <span class="keywordflow">if</span> (strcmp(name, <span class="stringliteral">"f"</span>) == 0 && arguments_size == 0) {</div>
<div class="line"> <a class="code" href="group__Symbols.html#ga6c75c60fa57c3b97505265ff08f6f951">clingo_symbol_t</a> sym;</div>
<div class="line"> <a class="code" href="group__Symbols.html#gaf7394a2d7be515f00873ba260643c2e2">clingo_symbol_create_number</a>(42, &sym);</div>
<div class="line"> <span class="keywordflow">return</span> symbol_callback(&sym, 1, symbol_callback_data);</div>
<div class="line"> }</div>
<div class="line"> <a class="code" href="group__BasicTypes.html#ga5c2b2943475239e151eb783d30548b38">clingo_set_error</a>(<a class="code" href="group__BasicTypes.html#ggaebdf91a4187db9abdd2c6ceb971cf13eaf43eebc9503fef8d1b2b85f99bb63221">clingo_error_runtime</a>, <span class="stringliteral">"function not found"</span>);</div>
<div class="line"> <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line">}</div>
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<h2 class="memtitle"><span class="permalink"><a href="#ga513a00ca49d65802f0d4ea197e0c410b">◆ </a></span>clingo_part_t</h2>
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<td class="memname">typedef struct <a class="el" href="structclingo__part.html">clingo_part</a> <a class="el" href="group__Control.html#ga513a00ca49d65802f0d4ea197e0c410b">clingo_part_t</a></td>
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<p>Struct used to specify the program parts that have to be grounded. </p>
<p>Programs may be structured into parts, which can be grounded independently with <a class="el" href="group__Control.html#gaf85b77055668171e6a85f9d729719b57" title="Ground the selected parts of the current (non-ground) logic program.">clingo_control_ground</a>. Program parts are mainly interesting for incremental grounding and multi-shot solving. For single-shot solving, program parts are not needed.</p>
<dl class="section note"><dt>Note</dt><dd>Parts of a logic program without an explicit <code>#program</code> specification are by default put into a program called <code>base</code> without arguments.</dd></dl>
<dl class="section see"><dt>See also</dt><dd><a class="el" href="group__Control.html#gaf85b77055668171e6a85f9d729719b57" title="Ground the selected parts of the current (non-ground) logic program.">clingo_control_ground()</a> </dd></dl>
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<h2 class="memtitle"><span class="permalink"><a href="#gae917a23b0591d181004ec88c4e3291c1">◆ </a></span>clingo_solve_result_bitset_t</h2>
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<td class="memname"><a class="el" href="group__Control.html#gae917a23b0591d181004ec88c4e3291c1">clingo_solve_result_bitset_t</a></td>
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<p>Corresponding type to <a class="el" href="group__Control.html#ga152eeb260a8162fbf9bc432a1b912bc7">clingo_solve_result_e</a>. </p>
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<h2 class="groupheader">Enumeration Type Documentation</h2>
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<td class="memname">enum <a class="el" href="group__Control.html#ga152eeb260a8162fbf9bc432a1b912bc7">clingo_solve_result_e</a></td>
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<p>Enumeration of bit masks for solve call results.</p>
<dl class="section note"><dt>Note</dt><dd>Neither <a class="el" href="group__Control.html#gga152eeb260a8162fbf9bc432a1b912bc7ae71ed354490afbb3b9c6d6ea9d20910d">clingo_solve_result_satisfiable</a> nor <a class="el" href="group__Control.html#gga152eeb260a8162fbf9bc432a1b912bc7a9f6904e39554c1bb16e2339fd534eafd">clingo_solve_result_exhausted</a> is set if the search is interrupted and no model was found. </dd></dl>
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<tr><th colspan="2">Enumerator</th></tr><tr><td class="fieldname"><a id="gga152eeb260a8162fbf9bc432a1b912bc7ae71ed354490afbb3b9c6d6ea9d20910d"></a>clingo_solve_result_satisfiable </td><td class="fielddoc"><p>The last solve call found a solution. </p>
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<tr><td class="fieldname"><a id="gga152eeb260a8162fbf9bc432a1b912bc7a9f6904e39554c1bb16e2339fd534eafd"></a>clingo_solve_result_exhausted </td><td class="fielddoc"><p>The last solve call completely exhausted the search space. </p>
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<tr><td class="fieldname"><a id="gga152eeb260a8162fbf9bc432a1b912bc7a9f32a002b3f8a88c6ca4e347e91af1eb"></a>clingo_solve_result_interrupted </td><td class="fielddoc"><p>The last solve call was interrupted.</p>
<dl class="section see"><dt>See also</dt><dd><a class="el" href="group__Control.html#ga68d85962372b1258bc6726753cdecaa8" title="Interrupt the active solve call (or the following solve call right at the beginning).">clingo_control_interrupt()</a> </dd></dl>
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<h2 class="groupheader">Function Documentation</h2>
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<h2 class="memtitle"><span class="permalink"><a href="#gada7b7f54331abfedf60fac33d742c0dc">◆ </a></span>clingo_control_add()</h2>
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<td class="memname">CLINGO_VISIBILITY_DEFAULT bool clingo_control_add </td>
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<td class="paramtype"><a class="el" href="group__Control.html#gaf008e9db9dbb37b0b7ef039bb9d582f0">clingo_control_t</a> * </td>
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<td class="paramtype">char const * </td>
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<td class="paramtype">char const *const * </td>
<td class="paramname"><em>parameters</em>, </td>
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<td class="paramtype">size_t </td>
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<td class="paramtype">char const * </td>
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<p>Extend the logic program with the given non-ground logic program in string form. </p>
<p>This function puts the given program into a block of form: <code>#program name(parameters).</code></p>
<p>After extending the logic program, the corresponding program parts are typically grounded with <a class="el" href="group__Control.html#gaf85b77055668171e6a85f9d729719b57" title="Ground the selected parts of the current (non-ground) logic program.">clingo_control_ground</a>.</p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramdir">[in]</td><td class="paramname">control</td><td>the target </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">name</td><td>name of the program block </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">parameters</td><td>string array of parameters of the program block </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">parameters_size</td><td>number of parameters </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">program</td><td>string representation of the program </td></tr>
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<dl class="section return"><dt>Returns</dt><dd>whether the call was successful; might set one of the following error codes:<ul>
<li><a class="el" href="group__BasicTypes.html#ggaebdf91a4187db9abdd2c6ceb971cf13eaa14a0926eb3e653fcc13299b33d8d348" title="memory could not be allocated">clingo_error_bad_alloc</a></li>
<li><a class="el" href="group__BasicTypes.html#ggaebdf91a4187db9abdd2c6ceb971cf13eaf43eebc9503fef8d1b2b85f99bb63221" title="errors only detectable at runtime like invalid input">clingo_error_runtime</a> if parsing fails </li>
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<dl class="section examples"><dt>Examples</dt><dd><a class="el" href="ast_8c-example.html#a35">ast.c</a>, <a class="el" href="backend_8c-example.html#a15">backend.c</a>, <a class="el" href="configuration_8c-example.html#a20">configuration.c</a>, <a class="el" href="control_8c-example.html#a15">control.c</a>, <a class="el" href="model_8c-example.html#a23">model.c</a>, <a class="el" href="propagator_8c-example.html#a39">propagator.c</a>, <a class="el" href="solve-async_8c-example.html#a10">solve-async.c</a>, <a class="el" href="statistics_8c-example.html#a35">statistics.c</a>, <a class="el" href="symbolic-atoms_8c-example.html#a6">symbolic-atoms.c</a>, and <a class="el" href="theory-atoms_8c-example.html#a15">theory-atoms.c</a>.</dd>
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<h2 class="memtitle"><span class="permalink"><a href="#ga27f0fe2e063f6a5bda363bde93cf73b9">◆ </a></span>clingo_control_assign_external()</h2>
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<td class="memname">CLINGO_VISIBILITY_DEFAULT bool clingo_control_assign_external </td>
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<td class="paramtype"><a class="el" href="group__Control.html#gaf008e9db9dbb37b0b7ef039bb9d582f0">clingo_control_t</a> * </td>
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<td class="paramtype"><a class="el" href="group__BasicTypes.html#gaa95dd19334e536397bbad174c8fa4ff8">clingo_literal_t</a> </td>
<td class="paramname"><em>literal</em>, </td>
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<p>Assign a truth value to an external atom. </p>
<p>If a negative literal is passed, the corresponding atom is assigned the inverted truth value.</p>
<p>If the atom does not exist or is not external, this is a noop.</p>
<dl class="params"><dt>Parameters</dt><dd>
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<tr><td class="paramdir">[in]</td><td class="paramname">control</td><td>the target </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">literal</td><td>literal to assign </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">value</td><td>the truth value </td></tr>
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</dd>
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<dl class="section return"><dt>Returns</dt><dd>whether the call was successful; might set one of the following error codes:<ul>
<li><a class="el" href="group__BasicTypes.html#ggaebdf91a4187db9abdd2c6ceb971cf13eaa14a0926eb3e653fcc13299b33d8d348" title="memory could not be allocated">clingo_error_bad_alloc</a> </li>
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<dl class="section examples"><dt>Examples</dt><dd><a class="el" href="ast_8c-example.html#a40">ast.c</a>.</dd>
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<h2 class="memtitle"><span class="permalink"><a href="#ga640809e4c7f92347d28f28c22b09008b">◆ </a></span>clingo_control_backend()</h2>
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<td class="memname">CLINGO_VISIBILITY_DEFAULT bool clingo_control_backend </td>
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<td class="paramtype"><a class="el" href="group__Control.html#gaf008e9db9dbb37b0b7ef039bb9d582f0">clingo_control_t</a> * </td>
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<td class="paramtype"><a class="el" href="group__ProgramBuilder.html#ga5e9458723e4631599ada46f8748ca577">clingo_backend_t</a> ** </td>
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<p>Get an object to add ground directives to the program. </p>
<p>See the <a class="el" href="group__ProgramBuilder.html">Program Building</a> module for more information.</p>
<dl class="params"><dt>Parameters</dt><dd>
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<tr><td class="paramdir">[in]</td><td class="paramname">control</td><td>the target </td></tr>
<tr><td class="paramdir">[out]</td><td class="paramname">backend</td><td>the backend object </td></tr>
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<dl class="section return"><dt>Returns</dt><dd>whether the call was successful; might set one of the following error codes:<ul>
<li><a class="el" href="group__BasicTypes.html#ggaebdf91a4187db9abdd2c6ceb971cf13eaa14a0926eb3e653fcc13299b33d8d348" title="memory could not be allocated">clingo_error_bad_alloc</a> </li>
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<dl class="section examples"><dt>Examples</dt><dd><a class="el" href="backend_8c-example.html#a23">backend.c</a>.</dd>
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<h2 class="memtitle"><span class="permalink"><a href="#ga760ff1d643214e60deda003b18df5f50">◆ </a></span>clingo_control_clasp_facade()</h2>
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<td class="memname">CLINGO_VISIBILITY_DEFAULT bool clingo_control_clasp_facade </td>
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<td class="paramtype">void ** </td>
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<p>Get low-level access to clasp. </p>
<dl class="section attention"><dt>Attention</dt><dd>This function is intended for experimental use only and not part of the stable API.</dd></dl>
<p>This function may return a <code>nullptr</code>. Otherwise, the returned pointer can be casted to a ClaspFacade pointer.</p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramdir">[in]</td><td class="paramname">control</td><td>the target </td></tr>
<tr><td class="paramdir">[out]</td><td class="paramname">clasp</td><td>pointer to the ClaspFacade object (may be <code>nullptr</code>) </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>whether the call was successful </dd></dl>
</div>
</div>
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<h2 class="memtitle"><span class="permalink"><a href="#gac7fc639c48f288620ba27c48b82034a8">◆ </a></span>clingo_control_cleanup()</h2>
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<td class="memname">CLINGO_VISIBILITY_DEFAULT bool clingo_control_cleanup </td>
<td>(</td>
<td class="paramtype"><a class="el" href="group__Control.html#gaf008e9db9dbb37b0b7ef039bb9d582f0">clingo_control_t</a> * </td>
<td class="paramname"><em>control</em></td><td>)</td>
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<p>Clean up the domains of the grounding component using the solving component's top level assignment. </p>
<p>This function removes atoms from domains that are false and marks atoms as facts that are true. With multi-shot solving, this can result in smaller groundings because less rules have to be instantiated and more simplifications can be applied.</p>
<dl class="section note"><dt>Note</dt><dd>It is typically not necessary to call this function manually because automatic cleanups at the right time are enabled by default. </dd></dl>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramdir">[in]</td><td class="paramname">control</td><td>the target </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>whether the call was successful; might set one of the following error codes:<ul>
<li><a class="el" href="group__BasicTypes.html#ggaebdf91a4187db9abdd2c6ceb971cf13eaa14a0926eb3e653fcc13299b33d8d348" title="memory could not be allocated">clingo_error_bad_alloc</a></li>
</ul>
</dd></dl>
<dl class="section see"><dt>See also</dt><dd><a class="el" href="group__Control.html#gaa32cf1e7ee706e161ff8bf8b115102a3" title="Check whether automatic cleanup is enabled.">clingo_control_get_enable_cleanup()</a> </dd>
<dd>
<a class="el" href="group__Control.html#ga80f6b805d0c00e7534e500e83f375a3a" title="Enable automatic cleanup after solving.">clingo_control_set_enable_cleanup()</a> </dd></dl>
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<h2 class="memtitle"><span class="permalink"><a href="#ga508042ea216ddfd24f4278310cc25321">◆ </a></span>clingo_control_configuration()</h2>
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<td class="memname">CLINGO_VISIBILITY_DEFAULT bool clingo_control_configuration </td>
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<td class="paramtype"><a class="el" href="group__Control.html#gaf008e9db9dbb37b0b7ef039bb9d582f0">clingo_control_t</a> * </td>
<td class="paramname"><em>control</em>, </td>
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<td class="paramtype"><a class="el" href="group__Configuration.html#gabf3ac9f48abde87a53cdba386f21bc2f">clingo_configuration_t</a> ** </td>
<td class="paramname"><em>configuration</em> </td>
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<p>Get a configuration object to change the solver configuration. </p>
<p>See the <a class="el" href="group__Configuration.html">Solver Configuration</a> module for more information.</p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramdir">[in]</td><td class="paramname">control</td><td>the target </td></tr>
<tr><td class="paramdir">[out]</td><td class="paramname">configuration</td><td>the configuration object </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>whether the call was successful </dd></dl>
<dl class="section examples"><dt>Examples</dt><dd><a class="el" href="configuration_8c-example.html#a15">configuration.c</a>, and <a class="el" href="statistics_8c-example.html#a31">statistics.c</a>.</dd>
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<h2 class="memtitle"><span class="permalink"><a href="#ga849604bd7107e6948a0e08e1dc10178a">◆ </a></span>clingo_control_free()</h2>
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<td class="memname">CLINGO_VISIBILITY_DEFAULT void clingo_control_free </td>
<td>(</td>
<td class="paramtype"><a class="el" href="group__Control.html#gaf008e9db9dbb37b0b7ef039bb9d582f0">clingo_control_t</a> * </td>
<td class="paramname"><em>control</em></td><td>)</td>
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<p>Free a control object created with <a class="el" href="group__Control.html#ga7ec38c676e45447bab71278b51e090c6" title="Create a new control object.">clingo_control_new()</a>. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramdir">[in]</td><td class="paramname">control</td><td>the target </td></tr>
</table>
</dd>
</dl>
<dl class="section examples"><dt>Examples</dt><dd><a class="el" href="ast_8c-example.html#a45">ast.c</a>, <a class="el" href="backend_8c-example.html#a31">backend.c</a>, <a class="el" href="configuration_8c-example.html#a24">configuration.c</a>, <a class="el" href="control_8c-example.html#a19">control.c</a>, <a class="el" href="model_8c-example.html#a27">model.c</a>, <a class="el" href="propagator_8c-example.html#a43">propagator.c</a>, <a class="el" href="solve-async_8c-example.html#a19">solve-async.c</a>, <a class="el" href="statistics_8c-example.html#a40">statistics.c</a>, <a class="el" href="symbolic-atoms_8c-example.html#a18">symbolic-atoms.c</a>, and <a class="el" href="theory-atoms_8c-example.html#a25">theory-atoms.c</a>.</dd>
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<h2 class="memtitle"><span class="permalink"><a href="#ga2f35442f2f44511d39b9479562d86945">◆ </a></span>clingo_control_get_const()</h2>
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<td class="memname">CLINGO_VISIBILITY_DEFAULT bool clingo_control_get_const </td>
<td>(</td>
<td class="paramtype"><a class="el" href="group__Control.html#gaf008e9db9dbb37b0b7ef039bb9d582f0">clingo_control_t</a> const * </td>
<td class="paramname"><em>control</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">char const * </td>
<td class="paramname"><em>name</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="group__Symbols.html#ga6c75c60fa57c3b97505265ff08f6f951">clingo_symbol_t</a> * </td>
<td class="paramname"><em>symbol</em> </td>
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<p>Return the symbol for a constant definition of form: <code>#const name = symbol</code>. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramdir">[in]</td><td class="paramname">control</td><td>the target </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">name</td><td>the name of the constant </td></tr>
<tr><td class="paramdir">[out]</td><td class="paramname">symbol</td><td>the resulting symbol </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>whether the call was successful </dd></dl>
</div>
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<h2 class="memtitle"><span class="permalink"><a href="#gaa32cf1e7ee706e161ff8bf8b115102a3">◆ </a></span>clingo_control_get_enable_cleanup()</h2>
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<td class="memname">CLINGO_VISIBILITY_DEFAULT bool clingo_control_get_enable_cleanup </td>
<td>(</td>
<td class="paramtype"><a class="el" href="group__Control.html#gaf008e9db9dbb37b0b7ef039bb9d582f0">clingo_control_t</a> * </td>
<td class="paramname"><em>control</em></td><td>)</td>
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<p>Check whether automatic cleanup is enabled. </p>
<p>See <a class="el" href="group__Control.html#ga80f6b805d0c00e7534e500e83f375a3a" title="Enable automatic cleanup after solving.">clingo_control_set_enable_cleanup()</a>.</p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramdir">[in]</td><td class="paramname">control</td><td>the target</td></tr>
</table>
</dd>
</dl>
<dl class="section see"><dt>See also</dt><dd><a class="el" href="group__Control.html#gac7fc639c48f288620ba27c48b82034a8" title="Clean up the domains of the grounding component using the solving component's top level assignment.">clingo_control_cleanup()</a> </dd>
<dd>
<a class="el" href="group__Control.html#ga80f6b805d0c00e7534e500e83f375a3a" title="Enable automatic cleanup after solving.">clingo_control_set_enable_cleanup()</a> </dd></dl>
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<h2 class="memtitle"><span class="permalink"><a href="#gac314d4977431400167a19517d7898506">◆ </a></span>clingo_control_get_enable_enumeration_assumption()</h2>
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<td class="memname">CLINGO_VISIBILITY_DEFAULT bool clingo_control_get_enable_enumeration_assumption </td>
<td>(</td>
<td class="paramtype"><a class="el" href="group__Control.html#gaf008e9db9dbb37b0b7ef039bb9d582f0">clingo_control_t</a> * </td>
<td class="paramname"><em>control</em></td><td>)</td>
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<p>Check whether the enumeration assumption is enabled. </p>
<p>See <a class="el" href="group__Control.html#gac187ead59bcf0d56e3f1b32173b66fbc" title="Configure how learnt constraints are handled during enumeration.">clingo_control_set_enable_enumeration_assumption()</a>. </p><dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramdir">[in]</td><td class="paramname">control</td><td>the target </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>whether using the enumeration assumption is enabled </dd></dl>
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<h2 class="memtitle"><span class="permalink"><a href="#gaf85b77055668171e6a85f9d729719b57">◆ </a></span>clingo_control_ground()</h2>
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<td class="memname">CLINGO_VISIBILITY_DEFAULT bool clingo_control_ground </td>
<td>(</td>
<td class="paramtype"><a class="el" href="group__Control.html#gaf008e9db9dbb37b0b7ef039bb9d582f0">clingo_control_t</a> * </td>
<td class="paramname"><em>control</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="group__Control.html#ga513a00ca49d65802f0d4ea197e0c410b">clingo_part_t</a> const * </td>
<td class="paramname"><em>parts</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">size_t </td>
<td class="paramname"><em>parts_size</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="group__Control.html#ga979ef1d6a28304ffb6966deff83d3e0f">clingo_ground_callback_t</a> </td>
<td class="paramname"><em>ground_callback</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">void * </td>
<td class="paramname"><em>ground_callback_data</em> </td>
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<p>Ground the selected <a class="el" href="structclingo__part.html">parts </a> of the current (non-ground) logic program. </p>
<p>After grounding, logic programs can be solved with <a class="el" href="group__Control.html#ga4b3b7388e75ace676481f6021c4dc66d" title="Solve the currently grounded logic program enumerating its models.">clingo_control_solve()</a>.</p>
<dl class="section note"><dt>Note</dt><dd>Parts of a logic program without an explicit <code>#program</code> specification are by default put into a program called <code>base</code> without arguments.</dd></dl>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramdir">[in]</td><td class="paramname">control</td><td>the target </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">parts</td><td>array of parts to ground </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">parts_size</td><td>size of the parts array </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">ground_callback</td><td>callback to implement external functions </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">ground_callback_data</td><td>user data for ground_callback </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>whether the call was successful; might set one of the following error codes:<ul>
<li><a class="el" href="group__BasicTypes.html#ggaebdf91a4187db9abdd2c6ceb971cf13eaa14a0926eb3e653fcc13299b33d8d348" title="memory could not be allocated">clingo_error_bad_alloc</a></li>
<li>error code of ground callback</li>
</ul>
</dd></dl>
<dl class="section see"><dt>See also</dt><dd><a class="el" href="structclingo__part.html" title="Struct used to specify the program parts that have to be grounded.">clingo_part</a> </dd></dl>
<dl class="section examples"><dt>Examples</dt><dd><a class="el" href="application_8c-example.html#a9">application.c</a>, <a class="el" href="ast_8c-example.html#a36">ast.c</a>, <a class="el" href="backend_8c-example.html#a16">backend.c</a>, <a class="el" href="configuration_8c-example.html#a21">configuration.c</a>, <a class="el" href="control_8c-example.html#a16">control.c</a>, <a class="el" href="model_8c-example.html#a24">model.c</a>, <a class="el" href="propagator_8c-example.html#a40">propagator.c</a>, <a class="el" href="solve-async_8c-example.html#a11">solve-async.c</a>, <a class="el" href="statistics_8c-example.html#a36">statistics.c</a>, <a class="el" href="symbolic-atoms_8c-example.html#a7">symbolic-atoms.c</a>, and <a class="el" href="theory-atoms_8c-example.html#a16">theory-atoms.c</a>.</dd>
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<h2 class="memtitle"><span class="permalink"><a href="#gacb207117479ca66725a1b45fc09e2950">◆ </a></span>clingo_control_has_const()</h2>
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<td class="memname">CLINGO_VISIBILITY_DEFAULT bool clingo_control_has_const </td>
<td>(</td>
<td class="paramtype"><a class="el" href="group__Control.html#gaf008e9db9dbb37b0b7ef039bb9d582f0">clingo_control_t</a> const * </td>
<td class="paramname"><em>control</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">char const * </td>
<td class="paramname"><em>name</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">bool * </td>
<td class="paramname"><em>exists</em> </td>
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<p>Check if there is a constant definition for the given constant. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramdir">[in]</td><td class="paramname">control</td><td>the target </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">name</td><td>the name of the constant </td></tr>
<tr><td class="paramdir">[out]</td><td class="paramname">exists</td><td>whether a matching constant definition exists </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>whether the call was successful; might set one of the following error codes:<ul>
<li><a class="el" href="group__BasicTypes.html#ggaebdf91a4187db9abdd2c6ceb971cf13eaf43eebc9503fef8d1b2b85f99bb63221" title="errors only detectable at runtime like invalid input">clingo_error_runtime</a> if constant definition does not exist</li>
</ul>
</dd></dl>
<dl class="section see"><dt>See also</dt><dd><a class="el" href="group__Control.html#ga2f35442f2f44511d39b9479562d86945" title="Return the symbol for a constant definition of form: #const name = symbol.">clingo_control_get_const()</a> </dd></dl>
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<h2 class="memtitle"><span class="permalink"><a href="#ga68d85962372b1258bc6726753cdecaa8">◆ </a></span>clingo_control_interrupt()</h2>
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<td class="memname">CLINGO_VISIBILITY_DEFAULT void clingo_control_interrupt </td>
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<td class="paramtype"><a class="el" href="group__Control.html#gaf008e9db9dbb37b0b7ef039bb9d582f0">clingo_control_t</a> * </td>
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<p>Interrupt the active solve call (or the following solve call right at the beginning). </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramdir">[in]</td><td class="paramname">control</td><td>the target </td></tr>
</table>
</dd>
</dl>
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<h2 class="memtitle"><span class="permalink"><a href="#gae452e6b873a192932f4610fb186ed575">◆ </a></span>clingo_control_is_conflicting()</h2>
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<td class="memname">CLINGO_VISIBILITY_DEFAULT bool clingo_control_is_conflicting </td>
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<td class="paramtype"><a class="el" href="group__Control.html#gaf008e9db9dbb37b0b7ef039bb9d582f0">clingo_control_t</a> const * </td>
<td class="paramname"><em>control</em></td><td>)</td>
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<p>Check if the solver has determined that the internal program representation is conflicting. </p>
<p>If this function returns true, solve calls will return immediately with an unsatisfiable solve result. Note that conflicts first have to be detected, e.g. - initial unit propagation results in an empty clause, or later if an empty clause is resolved during solving. Hence, the function might return false even if the problem is unsatisfiable.</p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramdir">[in]</td><td class="paramname">control</td><td>the target </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>whether the program representation is conflicting </dd></dl>
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<h2 class="memtitle"><span class="permalink"><a href="#gacd916338afc7dd07cb33ae3eca50353d">◆ </a></span>clingo_control_load()</h2>
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<td class="memname">CLINGO_VISIBILITY_DEFAULT bool clingo_control_load </td>
<td>(</td>
<td class="paramtype"><a class="el" href="group__Control.html#gaf008e9db9dbb37b0b7ef039bb9d582f0">clingo_control_t</a> * </td>
<td class="paramname"><em>control</em>, </td>
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<td></td>
<td class="paramtype">char const * </td>
<td class="paramname"><em>file</em> </td>
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<p>Extend the logic program with a program in a file. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramdir">[in]</td><td class="paramname">control</td><td>the target </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">file</td><td>path to the file </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>whether the call was successful; might set one of the following error codes:<ul>
<li><a class="el" href="group__BasicTypes.html#ggaebdf91a4187db9abdd2c6ceb971cf13eaa14a0926eb3e653fcc13299b33d8d348" title="memory could not be allocated">clingo_error_bad_alloc</a></li>
<li><a class="el" href="group__BasicTypes.html#ggaebdf91a4187db9abdd2c6ceb971cf13eaf43eebc9503fef8d1b2b85f99bb63221" title="errors only detectable at runtime like invalid input">clingo_error_runtime</a> if parsing or checking fails </li>
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<dl class="section examples"><dt>Examples</dt><dd><a class="el" href="application_8c-example.html#a8">application.c</a>.</dd>
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<h2 class="memtitle"><span class="permalink"><a href="#ga7ec38c676e45447bab71278b51e090c6">◆ </a></span>clingo_control_new()</h2>
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<td class="memname">CLINGO_VISIBILITY_DEFAULT bool clingo_control_new </td>
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<td class="paramtype">char const *const * </td>
<td class="paramname"><em>arguments</em>, </td>
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<td class="paramtype">size_t </td>
<td class="paramname"><em>arguments_size</em>, </td>
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<td class="paramtype"><a class="el" href="group__BasicTypes.html#ga0cddd4c84a531b5c64a4774566ddc9ef">clingo_logger_t</a> </td>
<td class="paramname"><em>logger</em>, </td>
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<td class="paramtype">void * </td>
<td class="paramname"><em>logger_data</em>, </td>
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