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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114
7
章 関数
int printf(const char* format, ...);
この例のように、引数型の列が最後のカンマの後、省略記号（…）で終わる。省略記号が
オプション引数を表す。
printf
関数呼び出しの第1引数は、
char
へのポインタでなければ
ならない。その後に引数を続けて構わない。プロトタイプには、関数が何個のどの型の引
数をオプションとして期待するかの情報はない。
7.2.2
可変長配列引数の宣言
関数定義の関数宣言子以外で関数の引数を可変長配列として宣言するとき、配列長にア
スタリスク（
*
）を使う。非定数整数式を使って配列長を指定すると、コンパイラはアスタリ
スクと同じように扱う。例えば、例7-5 で定義された
maximum()
関数のプロトタイプの宣言
は次のいずれでもよい。
double maximum(int nrows, int ncols, double matrix[nrows][ncols]);
double maximum(int nrows, int ncols, double matrix[][ncols]);
double maximum(int nrows, int ncols, double matrix[*][*]);
double maximum(int nrows, int ncols, double matrix[][*]);
7.3
関数はどのように実行されるか
関数実行命令、すなわち関数呼び出しは、関数名と演算子
()
（「5.2.8 その
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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.