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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2.2
整数型
27
型 意味 実装
int_least
N
_t
uint_least
N
_t
少なくとも
N
ビット幅の整数型
N
＝8, 16, 32, 64で必須
int_fast
N
_t
uint_fast
N
_t
少なくとも
N
ビット幅の処理最高速型
N
＝8, 16, 32, 64で必須
intmax_t
uintmax_t
実装で幅最大の整数型 必須
intptr_t
uintptr_t
ポインタ値を格納できる幅の整数型 オプション
例えば、
int_least64_t
および
uint_least64_t
は少なくとも 64ビット幅の整数型である。
オプションの符号付き型（
u
が先頭につかない）が定義されれば、対応する符号なし型（
u
が
先頭につく）が必須となるし、その逆もある。次の例は、要素が型
int_fast32_t
である配
列を定義して初期化する。
#define ARR_SIZE 100
int_fast32_t arr[ARR_SIZE]; //
要素型
int_fast32_t
の配列
arr
を定義
for (int i = 0; i < ARR_SIZE; ++i)
{
arr[i] = (int_fast32_t) i ; //
要素初期化
}
表2-5の型は通常、既存標準型の同義語として定義される。例えば、あるCコンパイラの
stdint.hファイルは次の行を含む。
typedef signed char int_fast8_t;
この宣言は新しい型
int_fast8_t
（最高速 8ビット符号付き整数型）を
signed char
に等
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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.