#ifndef CORE_CHECK_H #define CORE_CHECK_H #if defined(__STDC_VERSION__) && __STDC_VERSION__ > 202300L #define check_return [[nodiscard]] #elif defined(__GNUC__) #define check_return __attribute__((warn_unused_result)) #else #error "please add a 'check_return' option" #endif #if defined(__GNUC__) #define check_format(format_index, arg_start_index) \ __attribute__((format(printf, format_index, arg_start_index))) #else #error "please add a 'check_format' option" #endif #if defined(__GNUC__) #define likely(x) __builtin_expect(!!(x), 1) #define unlikely(x) __builtin_expect(!!(x), 0) #else #define likely(x) x #define unlikely(x) x #endif #define cbool check_return bool #endif