我的问题是,我会如何去 改变的东西,比如:
int i = 0x11111111;
我尝试使用 Itoa () 函数, 但它给了我一个浮动点例外 。
我的问题是,我会如何去 改变的东西,比如:
int i = 0x11111111;
我尝试使用 Itoa () 函数, 但它给了我一个浮动点例外 。
itoa
是非标准。 走开 。
一种可能性是使用 sprintf
和六溴的正确格式说明,即 ex
并做:
char str[ BIG_ENOUGH + 1 ];
sprintf(str,"%x",value);
然而,计算 value
数组大小的问题。 您需要一些猜测和 < a href=" http://c- faq.com/stdio/sprintfsize. html" rel=“ noreferrer" > FAQ 12. 21 是一个很好的起点。
在任何基数 b
中代表数字所需的字符数可以用以下公式相近:
*log b (n+1)
如果需要的话,多加几句以持有 0x
,然后您的 BIG_ENOUGH
准备就绪。
char buffer[20];
然后:
sprintf(buffer, "%x", i);
或者:
itoa(i, buffer, 16);
缓冲区的字符指针可以是 buffer
本身(但它是同源)或其他变量:
char *p = buffer;
使用 sprintf ()
函数将整数转换为十六进制应该完成您的任务 。
以下是一个例子:
int i = 0x11111111;
char szHexPrintBuf[10];
int ret_code = 0;
ret_code = sprintf(szHexPrintBuf, "%x", i);
if(0 > ret_code)
{
something-bad-happend();
}
Using the sprintf() function like this -- sprintf(charBuffer, "%x", i);
-- I think will work very well.
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