static_assert
| 定义于头文件 <assert.h>
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| #define static_assert _Static_assert |
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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)