costrlen.hpp

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#ifndef GLIM_COSTRLEN_HPP_
#define GLIM_COSTRLEN_HPP_

/**
 * Defines a macro for obtaining the size out of a compiled-in C string.
 * This macro allows to avoid the strlen overhead for strings known at compile-time.\n
 * Usage example:
 * @code
 * void doSomething(char const* str, int strLen);
 * void someFunc() {
 *   std::pair<char const*, int> str = S("some text");
 *   doSomething (str.first, str.second);
 * }
 * @endcode
 * @file
 */

#include <utility>
#undef S
/**
 * This macro allows to avoid the strlen overhead for strings known at compile-time.
 */
#define S(conststring) std::pair<char const*, int>(conststring, sizeof(conststring) - 1)

#endif // GLIM_COSTRLEN_HPP_

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