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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518
18
章 標準ライブラリ関数
数値を0精度で変換すると、結果は文字がなくなる。
変換指定子
s
は文字列引数を示し、
precision
は出力に挿入される最大文字列長を指定す
る。
precision
値の位置にアスタリスク（
*
）があると、出力に変換される引数の前に型
int
の追加引数があることを示し、その追加引数は変換出力の精度を示す。アスタリスクが
field width
と
precision
の両方にあると、変換される引数の前に、最初が
field width
、次が
precision
の2つの
int
引数が追加される。
length modifier
は変換指定子を修飾して、対応する引数の型をより詳しく示す。長さ修
飾子値は、いずれもある種の変換指定子の値にのみ適用できる。合致しないと関数の振る
舞いは未定義となる。使用可能な
length modifier
値とその適用可能変換指定子に対する意
味を表18-7に示す。
表18-7 printf()変換指定子修飾子
修飾子 変換指定子 対応する引数型
hh d
,
i
,
o
,
u
,
x
,
X signed char
または
unsigned char
hh n signed char*
h d
,
i
,
o
,
u
,
x
,
X short int
または
unsigned short int
h n short int*
l d
,
i
,
o
,
u
,
x
,
X long int
または
unsigned long int
l c wint_t
l n long int*
l s wchar_t* ...
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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.