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CppNestedTemplateCloser.md

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(C++) nested template closer

 

When template data types are nested, for example a std::vector of std::vectors of int, its declaration ends with its nested template closer.

 

The nested template closer depends on the standard used:

 

 

 

 

 

C++98 nested template closer in the C++98 standard

 

The nested template closer must be '> >', instead of just '>>'.

 

#include <vector> int main() {   std::vector<std::vector<int> > v; }

 

 

 

 

 

C++11 nested template closer in the C++11 standard

 

 

The nested template closer can be '>>'.

 

#include <vector> int main() {   std::vector<std::vector<int>> v; }

 

Technical note: this code is compiled successfully using the G++ 4.4.5 compiler, which is supplied with the Qt Creator 2.0.0 IDE.