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preprocessor_detection.h
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/*
* CREATED BY SHPEGUN60
*
* DETECTION MACROCES
*/
#ifndef __PREPROCESSOR_DETECTION_H__
#define __PREPROCESSOR_DETECTION_H__ 1
/* -- Headers -- */
#ifdef __cplusplus
extern "C" {
#endif
/* -- Macros -- */
/************************************************************************************************************************************************************
* Expects a single input (not containing commas). Returns 1 if the input is
* PREPROCESSOR_PROBE() and otherwise returns 0.
*
* This can be useful as the basis of a NOT function.
*
* This macro abuses the fact that PREPROCESSOR_PROBE() contains a comma while other valid
* inputs must not.
*
* PREPROCESSOR_IS_PROBE(PREPROCESSOR_PROBE()) // Expands to 1
* PREPROCESSOR_IS_PROBE(xxx) // Expands to 0
*/
# define PREPROCESSOR_IS_PROBE_SND(...) PREPROCESSOR_IS_PROBE_SND_IMPL(__VA_ARGS__, ~)
# define PREPROCESSOR_IS_PROBE_SND_IMPL(_x, _y, ...) _y
#define PREPROCESSOR_IS_PROBE(...) _PREPROCESSOR_IS_PROBE(__VA_ARGS__) // expand all arguments
#define _PREPROCESSOR_IS_PROBE(...) PREPROCESSOR_IS_PROBE_SND(__VA_ARGS__, 0)
#define PREPROCESSOR_PROBE() ~, 1
// #define PREPROCESSOR_UNT(...) __VA_ARGS__
// #define PREPROCESSOR_ARGS_SND1(_x, ...) PREPROCESSOR_ARGS_SND_IMPL1(_x, __VA_ARGS__, ~)
// #define PREPROCESSOR_ARGS_SND_IMPL1(_x, ...) PREPROCESSOR_GET_ARG(1) _x
// #define PREPROCESSOR_IS_PROBE(x) PREPROCESSOR_ARGS_SND1((bbb), 0)
// #define PREPROCESSOR_PROBE() (~, 1)
/************************************************************************************************************************************************************
* Detection for parenthesis --> ()
*
* PREPROCESSOR_IS_PAREN(()) // Expands to 1
* PREPROCESSOR_IS_PAREN(xxx) // Expands to 0
*/
#define PREPROCESSOR_IS_PAREN(x) _PREPROCESSOR_IS_PAREN(x) // expand x
#define _PREPROCESSOR_IS_PAREN(x) PREPROCESSOR_IS_PROBE(PREPROCESSOR_IS_PAREN_PROBE x)
#define PREPROCESSOR_IS_PAREN_PROBE(...) PREPROCESSOR_PROBE()
/************************************************************************************************************************************************************/
#ifdef __cplusplus
}
#endif
#endif /* __PREPROCESSOR_DETECTION_H__ */