gp_compiler.h

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// SPDX-License-Identifier: LGPL-2.1-or-later
/*
 * Copyright (C) 2024 Cyril Hrubis <metan@ucw.cz>
 */
 
#ifndef CORE_GP_COMPILER_H
#define CORE_GP_COMPILER_H
 
#if __DOXYGEN__
# define GP_ALIGNED
#else
# define GP_ALIGNED __attribute__((aligned (sizeof(void*))))
#endif /* __DOXYGEN__ */
 
#if __GNUC__
# define GP_IS_CONSTANT(x) __builtin_constant_p(x)
# define GP_WUR __attribute__((warn_unused_result))
# define GP_FMT_PRINTF(fmt, list) __attribute__((format(printf, fmt, list)))
# define GP_FMT_SCANF(fmt, list) __attribute__((format(scanf, fmt, list)))
# define GP_LIKELY(cond) __builtin_expect(!!(cond), 1)
# define GP_UNLIKELY(cond) __builtin_expect(!!(cond), 0)
# define GP_UNUSED(x) (x)__attribute__ ((unused))
# define GP_PACKED    __attribute__ ((packed))
#else
# define GP_WUR
# define GP_FMT_PRINTF(fmt, list)
# define GP_FMT_SCANF(fmt, list)
# define GP_IS_CONSTANT(x) 0
# define GP_LIKELY(cond) (cond)
# define GP_UNLIKELY(cond) (cond)
# define GP_UNUSED(x) x
# define GP_PACKED
#endif
 
/* Make sure typeof() is defined even with ISO C */
#define typeof(x) __typeof__(x)
 
#endif /* CORE_GP_COMPILER_H */