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如何分离
原标题:How to split an int
  • 时间:2011-02-01 21:11:59
  •  标签:
  • c
  • split

我想读一下。 例如001。 在我最后想把A=0、B=0和C= 1. 导言 我想在C中这样做。 感谢!

问题回答

如果001是您的立格价值()的比值,则:

int A = (I >> 2) & 0x1
int B = (I >> 1) & 0x1
int C = I & 0x1

通过使用模块操作员((%)和分类(/)来达到预期结果。 在你开始学习C时,比双向经营者更容易理解。

scanf("%d", &i);    
a = i / 100;
b = (i % 100) / 10;
c = (i % 100) % 10;

以Karl Bielefeldt评论为基础:

你们可以建立char和禁地联盟,例如:

typedef union
{
    unsigned char byte;
    unsigned char b0 : 1;
    unsigned char b1 : 1;
    unsigned char b2 : 1;
    unsigned char b3 : 1;
    unsigned char b4 : 1;
    unsigned char b5 : 1;
    unsigned char b6 : 1;
    unsigned char b7 : 1;
}TYPE_BYTE;

TYPE_BYTE sample_byte;

. ......在样本中分配一个价值,即:逐.b0,样本_byte.b1,等等。 指定借方的顺序是,执行取决于你的汇编者手册,以了解其如何实施借方。

Bitfields can also be created with larger int types.


Edit (2011-03-15):

假设你可能想用3-10基数的基数来读,并将3位数分成3个变量,这里是应该这样做的一些代码。 它是没有经过测试的,因此你可能需要做一些 t:


void split_base10(const unsigned int input, unsigned int *a, unsigned int *b, unsigned int *c)
{
    unsigned int x = input;

    *c = x%10;
    x /= 10;
    *b = x%10;
    *a = x/10;
}

亲爱!





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