int和char的大小 [英] size of int and char

问题描述

64位计算机上int的大小是多少？

char可以与signed char的大小不同吗？

What is the size of int on 64-bit computers ?
Can char have minimal size different from signed char ?

推荐答案

ra****@op.pl 写于07/02/07 13:13， ：

ra****@op.pl wrote On 07/02/07 13:13,:

64位计算机上int的大小是多少？

What is the size of int on 64-bit computers ?

sizeof（int）。所有可以确定的是

这个值至少是ceil（16 / CHAR_BIT）;可能

更大。

sizeof(int). All that can be said with certainty is
that this value is at least ceil(16/CHAR_BIT); it might
be greater.

char是否具有与signed char不同的最小大小？

Can char have minimal size different from signed char ?

No.所有sizeof（char），sizeof（signed char）和

sizeof（unsigned char）等于1。


-
Er ******** *@sun.com

ra **** @ op。 pl 写道：

64位计算机上int的大小是多少？

What is the size of int on 64-bit computers ?

无论实现使用什么，只要它至少包含

范围，标准要求为整数（-32767到+32767） 。唯一的

答案是sizeof（int）或sizeof（int）* CHAR_BIT，具体取决于你的

问题。

Whatever the implementation uses, as long as it includes at least the
range the standard requires for ints (-32767 through +32767). The only
answers are sizeof(int) or sizeof(int)*CHAR_BIT, depending on what your
question actually is.

char可以与signed char有不同的最小大小吗？

Can char have minimal size different from signed char ?

sizeof（char）= sizeof（unsigned char）= sizeof（signed char）= 1

的定义。

sizeof(char) = sizeof(unsigned char) = sizeof(signed char) = 1
by definition.

< ra **** @ op.plha scritto nel messaggio新闻：11 *************** ******@n60g2000hse.googlegro ups.com ...

<ra****@op.plha scritto nel messaggio news:11*********************@n60g2000hse.googlegro ups.com...

64位计算机上int的大小是多少？

What is the size of int on 64-bit computers ?

sizeof（int）

sizeof(int)

char是否具有与signed char不同的最小大小？

Can char have minimal size different from signed char ?

编号。根据定义，它们的大小都是1。

No. They both have size 1, by definition.

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