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Diffstat (limited to 'internal/warnings.h')
| -rw-r--r-- | internal/warnings.h | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/internal/warnings.h b/internal/warnings.h new file mode 100644 index 0000000000..957583968d --- /dev/null +++ b/internal/warnings.h @@ -0,0 +1,50 @@ +#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 */ |