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110 lines
2.7 KiB
110 lines
2.7 KiB
#ifndef LIBOWFAT_ATTRIBUTES_H |
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#define LIBOWFAT_ATTRIBUTES_H |
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#ifndef __GNUC__ |
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// macro attribute declarations away if we don't have gcc or clang |
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#define __attribute__(x) |
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#define __extension__ |
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#endif |
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#ifndef __cplusplus |
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#define noexcept |
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#endif |
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#define GCC_VERSION_ATLEAST(a,b) (__GNUC__ > a) || ((__GNUC__ == a) && (__GNUC_MINOR__ >= b)) |
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#if GCC_VERSION_ATLEAST(2,95) && !defined(__STRICT_ANSI__) |
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#undef restrict |
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#else |
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#define restrict |
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#endif |
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#if GCC_VERSION_ATLEAST(3,0) |
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#define likely(a) __builtin_expect((a), 1) |
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#define unlikely(a) __builtin_expect((a), 0) |
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#else |
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#define likely(a) (a) |
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#define unlikely(a) (a) |
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#endif |
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#if GCC_VERSION_ATLEAST(2, 5) |
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#define att_const __attribute__((__const__)) |
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#else |
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#define att_const |
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#endif |
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#if GCC_VERSION_ATLEAST(2, 96) |
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#define att_pure __attribute__((__pure__)) |
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#else |
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#define att_pure |
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#endif |
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#if GCC_VERSION_ATLEAST(3, 0) |
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#define att_malloc __attribute__((__malloc__)) |
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#else |
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#define att_malloc |
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#endif |
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#if GCC_VERSION_ATLEAST(3, 4) |
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#define att_warn_unused_result __attribute__((__warn_unused_result__)) |
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#else |
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#define att_warn_unused_result |
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#endif |
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#if GCC_VERSION_ATLEAST(4, 3) |
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#define att_hot __attribute__((__hot__)) |
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#define att_cold __attribute__((__cold__)) |
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#else |
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#define att_hot |
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#define att_cold |
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#endif |
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#if GCC_VERSION_ATLEAST(4, 3) |
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#define att_alloc(x) __attribute__((alloc_size(x))) |
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#define att_calloc(x,y) __attribute__((alloc_size(x,y))) |
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#else |
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#define att_alloc |
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#define att_calloc |
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#endif |
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#if GCC_VERSION_ATLEAST(10, 0) |
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#define att_read(argno_ptr) __attribute__((access(read_only, argno_ptr))) |
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#define att_readn(argno_ptr, argno_size) __attribute__((access(read_only, argno_ptr, argno_size))) |
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#define att_write(argno_ptr) __attribute__((access(write_only, argno_ptr))) |
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#define att_writen(argno_ptr, argno_size) __attribute__((access(write_only, argno_ptr, argno_size))) |
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#define att_mangle(argno_ptr) __attribute__((access(read_write, argno_ptr))) |
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#define att_manglen(argno_ptr, argno_size) __attribute__((access(read_write, argno_ptr, argno_size))) |
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#else |
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#define att_read(argno_ptr) |
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#define att_readn(argno_ptr, argno_size) |
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#define att_write(argno_ptr) |
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#define att_writen(argno_ptr, argno_size) |
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#define att_mangle(argno_ptr) |
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#define att_manglen(argno_ptr, argno_size) |
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#endif |
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#if GCC_VERSION_ATLEAST(3, 2) |
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#define att_dontuse __attribute__((__deprecated__)) |
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#else |
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#define att_dontuse |
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#endif |
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#if GCC_VERSION_ATLEAST(3, 3) |
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#define att_nonnull(params) __attribute__((__nonnull__(params))) |
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#else |
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#define att_nonnull(params) |
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#endif |
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#if GCC_VERSION_ATLEAST(4, 3) |
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#define att_warn(message) __attribute__((__warning__(message))) |
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#define att_error(message) __attribute__((__warning__(message))) |
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#else |
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#define att_warn(message) |
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#define att_error(message) |
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#endif |
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#ifndef __GNUC__ |
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#define __builtin_constant_p(x) 0 |
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#endif |
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#endif
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