November 2016
Beginner to intermediate
816 pages
19h 58m
Japanese
Content preview from Cクイックリファレンス 第2版
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448
18
章 標準ライブラリ関数
■
参照
●
sqrt()
,
cbrt()
,
csqrt()
ignore_handler_s
C11
セキュア関数で実行時エラーに対して何もしない
#include <stdlib.h>
void ignore_handler_s(const char* restrict
msg
, void* restrict
ptr
, errno_t
error
);
関数
ignore_handler_s()
が引数として
set_constraint_handler_s()
に渡されると実行
時エラーハンドラとしてインストールされ、その場合、セキュア関数（名前が
_s
で終わる）
が実行時に違反すると
ignore_handler_s()
が呼び出される。
関数
ignore_handler_s()
はそのエラーに対しては何の動作も行わず、エラーが起こった
セキュア関数に単に制御を返す。そのセキュア関数は呼び出し元にエラーが起こったこと
を示す
戻り値を返す。戻り値については、本章のセキュア関数でそれぞれ述べる。セキュ
ア関数は通常、ナルポインタまたは型
errno_t
の非ゼロ値を返してエラーを示す。
ignore_handler_s()
以外の実行時エラーハンドラをインストールするには、標準関数
abort_handler_s()
または自身のハンドラ関数を
set_constraint_handler_s()
に渡す。
■
例
//
セキュア関数の戻り値だけを使って実行時制約違反を処理する
#define __STDC_WANT_LIB_EXT1__ ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.