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68 lines
2.1 KiB
68 lines
2.1 KiB
#ifndef HEADER_Macros |
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#define HEADER_Macros |
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#include <assert.h> // IWYU pragma: keep |
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#ifndef MINIMUM |
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#define MINIMUM(a, b) ((a) < (b) ? (a) : (b)) |
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#endif |
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#ifndef MAXIMUM |
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#define MAXIMUM(a, b) ((a) > (b) ? (a) : (b)) |
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#endif |
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#ifndef CLAMP |
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#define CLAMP(x, low, high) (assert((low) <= (high)), ((x) > (high)) ? (high) : MAXIMUM(x, low)) |
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#endif |
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#ifndef ARRAYSIZE |
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#define ARRAYSIZE(x) (sizeof(x) / sizeof((x)[0])) |
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#endif |
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#ifndef SPACESHIP_NUMBER |
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#define SPACESHIP_NUMBER(a, b) (((a) > (b)) - ((a) < (b))) |
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#endif |
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#ifndef SPACESHIP_NULLSTR |
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#define SPACESHIP_NULLSTR(a, b) strcmp((a) ? (a) : "", (b) ? (b) : "") |
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#endif |
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#ifdef __GNUC__ // defined by GCC and Clang |
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#define ATTR_FORMAT(type, index, check) __attribute__((format (type, index, check))) |
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#define ATTR_NONNULL __attribute__((nonnull)) |
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#define ATTR_NORETURN __attribute__((noreturn)) |
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#define ATTR_UNUSED __attribute__((unused)) |
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#define ATTR_ALLOC_SIZE1(a) __attribute__((alloc_size (a))) |
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#define ATTR_ALLOC_SIZE2(a, b) __attribute__((alloc_size (a, b))) |
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#define ATTR_MALLOC __attribute__((malloc)) |
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#else /* __GNUC__ */ |
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#define ATTR_FORMAT(type, index, check) |
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#define ATTR_NONNULL |
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#define ATTR_NORETURN |
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#define ATTR_UNUSED |
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#define ATTR_ALLOC_SIZE1(a) |
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#define ATTR_ALLOC_SIZE2(a, b) |
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#define ATTR_MALLOC |
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#endif /* __GNUC__ */ |
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// ignore casts discarding const specifier, e.g. |
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// const char [] -> char * / void * |
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// const char *[2]' -> char *const * |
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#ifdef __clang__ |
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#define IGNORE_WCASTQUAL_BEGIN _Pragma("clang diagnostic push") \ |
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_Pragma("clang diagnostic ignored \"-Wcast-qual\"") |
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#define IGNORE_WCASTQUAL_END _Pragma("clang diagnostic pop") |
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#elif defined(__GNUC__) |
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#define IGNORE_WCASTQUAL_BEGIN _Pragma("GCC diagnostic push") \ |
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_Pragma("GCC diagnostic ignored \"-Wcast-qual\"") |
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#define IGNORE_WCASTQUAL_END _Pragma("GCC diagnostic pop") |
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#else |
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#define IGNORE_WCASTQUAL_BEGIN |
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#define IGNORE_WCASTQUAL_END |
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#endif |
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#endif
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