feat: add ll_pow

molingyu · Sep 13, 2024 · 6edd532 · 6edd532
1 parent 4f182a8
commit 6edd532
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Showing 2 changed files with 23 additions and 0 deletions.
diff --git a/src/core.c b/src/core.c
@@ -223,3 +223,24 @@ bool utf8_chr_each( const char* utf8_str, bool ( *each_block )( size_t, const ch
 	}
 	return true;
 }
+
+long long ll_pow( int base, int exp )
+{
+	long long result = 1;
+	if ( exp < 0 )
+	{
+		return 0;
+	}
+
+	while ( exp > 0 )
+	{
+		if ( exp % 2 == 1 )
+		{
+			result *= base;
+		}
+		base *= base;
+		exp /= 2;
+	}
+
+	return result;
+}
diff --git a/src/core.h b/src/core.h
@@ -184,3 +184,5 @@ size_t utf8_strlen( const char* utf8_str );
 int utf8_char_length( unsigned char c );
 
 bool utf8_chr_each( const char* utf8_str, bool ( *each_block )( size_t, const char*, void* ), void* extra_data );
+
+long long ll_pow( int base, int exp );
Original file line number	Diff line number	Diff line change
Expand Up		@@ -184,3 +184,5 @@ size_t utf8_strlen( const char* utf8_str );
		int utf8_char_length( unsigned char c );

		bool utf8_chr_each( const char* utf8_str, bool ( each_block )( size_t, const char, void* ), void* extra_data );

		long long ll_pow( int base, int exp );