参照元

説明

引数

返り値

参考

実装

#if __GNUC_MINOR__ >= 5
/*
 * Mark a position in code as unreachable.  This can be used to
 * suppress control flow warnings after asm blocks that transfer
 * control elsewhere.
 *
 * Early snapshots of gcc 4.5 don't support this and we can't detect
 * this in the preprocessor, but we can live with this because they're
 * unreleased.  Really, we need to have autoconf for the kernel.
 */
#define unreachable() __builtin_unreachable()
#endif

コメント


トップ   新規 一覧 検索 最終更新   ヘルプ   最終更新のRSS