来源$ C ​​$ C在嵌入式C为无符号整数串 [英] Source code in embedded C for unsigned integer to string

问题描述

没有求助于标准库utoa，我在寻找utoa来源$ C ​​$ C，所以我可以自定义为特定的项目。我有输出无符号整数（32位），如0xFFFF_FFFF

Without resorting to standard library utoa, I'm looking for source code of utoa so I may customise it for specific project. I have unsigned integer (32 bits) with output such as 0xFFFF_FFFF

我也想找源$ C ​​$ C为二进制格式的无符号整数，半字字符串。

I also looking for source code for unsigned integer and half word to string in binary format.

推荐答案

试试这个：

char *dec(unsigned x, char *s)
{
    *--s = 0;
    if (!x) *--s = '0';
    for (; x; x/=10) *--s = '0'+x%10;
    return s;
}

您的指针调用者提供缓冲区的结束调用它，并且函数返回的指针字符串的开头。缓冲区应该有长度至少为 3 * sizeof的（INT）+1 是安全的。

You call it with a pointer to the end of a caller-provided buffer, and the function returns the pointer to the beginning of the string. The buffer should have length at least 3*sizeof(int)+1 to be safe.

当然，这很容易适应其他基地。

Of course this is easily adapted to other bases.

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