static_assert
提供: cppreference.com
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| ヘッダ <assert.h> で定義
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#define static_assert _Static_assert |
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この便利マクロはキーワード _Static_assert に展開されます。
例
Run this code
#include <assert.h>
int main(void)
{
static_assert(2 + 2 == 4, "2+2 isn't 4"); // well-formed
static_assert(sizeof(int) < sizeof(char),
"this program requires that int is less than char"); // compile-time error
}