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added static assertion macros

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hyung-hwan 2019-08-08 04:10:20 +00:00
parent ae841ffd27
commit 2361cf8508
1 changed files with 24 additions and 0 deletions
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24
qse/include/qse/macros.h
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@ -72,6 +72,14 @@
# undef QSE_HAVE_INLINE_NEVER
#endif
#if defined(__GNUC__) && (__GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ > 4))
# define QSE_UNUSED __attribute__((__unused__))
#else
# define QSE_UNUSED
#endif
#if defined(_WIN32) || (defined(__WATCOMC__) && !defined(__WINDOWS_386__))
# define QSE_IMPORT __declspec(dllimport)
# define QSE_EXPORT __declspec(dllexport)
@ -364,6 +372,22 @@ QSE_EXPORT void qse_assert_failed (
#endif
/* =========================================================================
* STATIC ASSERTION
* =========================================================================*/
#define QSE_STATIC_JOIN_INNER(x, y) x ## y
#define QSE_STATIC_JOIN(x, y) QSE_STATIC_JOIN_INNER(x, y)
#if defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 201112L)
# define QSE_STATIC_ASSERT(expr) _Static_assert (expr, "invalid assertion")
#elif defined(__cplusplus) && (__cplusplus >= 201103L)
# define QSE_STATIC_ASSERT(expr) static_assert (expr, "invalid assertion")
#else
# define QSE_STATIC_ASSERT(expr) typedef char QSE_STATIC_JOIN(QSE_STATIC_ASSERT_T_, __LINE__)[(expr)? 1: -1] QSE_UNUSED
#endif
#define QSE_STATIC_ASSERT_EXPR(expr) ((void)QSE_SIZEOF(char[(expr)? 1: -1]))
/* ----------------------------------------------------------------------
* INTEGER LIMITS
* ---------------------------------------------------------------------- */