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#ifndef INTERNAL_WARNINGS_H /* -*- C -*- */
#define INTERNAL_WARNINGS_H
/**
* @file
* @brief Internal header to suppress / mandate warnings.
* @author \@shyouhei
* @copyright This file is a part of the programming language Ruby.
* Permission is hereby granted, to either redistribute and/or
* modify this file, provided that the conditions mentioned in the
* file COPYING are met. Consult the file for details.
*/
#if defined(_MSC_VER)
# define COMPILER_WARNING_PUSH __pragma(warning(push))
# define COMPILER_WARNING_POP __pragma(warning(pop))
# define COMPILER_WARNING_ERROR(flag) __pragma(warning(error: flag)))
# define COMPILER_WARNING_IGNORED(flag) __pragma(warning(suppress: flag)))
#elif defined(__clang__) /* clang 2.6 already had this feature */
# define COMPILER_WARNING_PUSH _Pragma("clang diagnostic push")
# define COMPILER_WARNING_POP _Pragma("clang diagnostic pop")
# define COMPILER_WARNING_SPECIFIER(kind, msg) \
clang diagnostic kind # msg
# define COMPILER_WARNING_ERROR(flag) \
COMPILER_WARNING_PRAGMA(COMPILER_WARNING_SPECIFIER(error, flag))
# define COMPILER_WARNING_IGNORED(flag) \
COMPILER_WARNING_PRAGMA(COMPILER_WARNING_SPECIFIER(ignored, flag))
#elif GCC_VERSION_SINCE(4, 6, 0)
/* https://gcc.gnu.org/onlinedocs/gcc-4.6.4/gcc/Diagnostic-Pragmas.html */
# define COMPILER_WARNING_PUSH _Pragma("GCC diagnostic push")
# define COMPILER_WARNING_POP _Pragma("GCC diagnostic pop")
# define COMPILER_WARNING_SPECIFIER(kind, msg) \
GCC diagnostic kind # msg
# define COMPILER_WARNING_ERROR(flag) \
COMPILER_WARNING_PRAGMA(COMPILER_WARNING_SPECIFIER(error, flag))
# define COMPILER_WARNING_IGNORED(flag) \
COMPILER_WARNING_PRAGMA(COMPILER_WARNING_SPECIFIER(ignored, flag))
#else /* other compilers to follow? */
# define COMPILER_WARNING_PUSH /* nop */
# define COMPILER_WARNING_POP /* nop */
# define COMPILER_WARNING_ERROR(flag) /* nop */
# define COMPILER_WARNING_IGNORED(flag) /* nop */
#endif
#define COMPILER_WARNING_PRAGMA(str) COMPILER_WARNING_PRAGMA_(str)
#define COMPILER_WARNING_PRAGMA_(str) _Pragma(#str)
#endif /* INTERNAL_WARNINGS_H */
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