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17 lines
440 B
C
17 lines
440 B
C
#pragma once
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#define __force __attribute__((force))
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#define likely(x) __builtin_expect(!!(x), 1)
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#define unlikely(x) __builtin_expect(!!(x), 0)
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#ifndef barrier
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// 内存屏障
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#define barrier() __asm__ __volatile__("" :: \
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: "memory");
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#endif
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// 编译器属性
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// 当函数的返回值未被使用时，编译器抛出警告信息
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#define __must_check __attribute__((__warn_unused_result__)) |