P99_DECLARE_INLINE_EXPRESSION P99_DECLARE_INLINE_EXPRESSIONS P99_GEN_ABS P99_GEN_EXPR P99_GEN_MAX P99_GEN_MIN P99_GEN_SIN P99_SIZE_CHOICE P99_SIZE_INDICATOR P99_TYPE_CHOICE

P99_SIZE_INDICATOR #define P99_SIZE_INDICATOR (   UI,   ...  ) Classify expression UI according to its value and return 1 if the value is in the list and 0, otherwise. UI is evaluated only at compile time and the resulting value is cast to size_t. It must not be 0. if (P99_SIZE_INDICATOR(sizeof(toto), 1, 2, 4, 8)) { .. do something easy .. } else { .. have some fallback for weirdos ... } Warning The range of allowed values for UI is platform dependent. The only known fixed guarantee is UINT16_MAX, but the result of a sizeof operator should always work. Definition at line 856 of file p99_generic.h.