static_assert

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static_assert
(C11)
边界检查
(C11)
(C11)
(C11)
 
定义于头文件 <assert.h>
#define static_assert _Static_assert

此便利宏展开成关键词 _Static_assert 。

示例

运行此代码
#include <assert.h>
int main(void)
{
    static_assert(2 + 2 == 4, "2+2 isn't 4");      // 良式
    static_assert(sizeof(int) < sizeof(char),
                 "this program requires that int is less than char"); // 编译时错误
}


引用

  • C11 standard (ISO/IEC 9899:2011):
  • 7.2/3 Diagnostics <assert.h> (p: 186)

参阅