uxtoa.c

来自「从iccavr7中破解得到的lib库源代码」· C语言 代码 · 共 17 行

#include <stdlib.h>
#include <string.h>

// conversion ASCII dependent

#define XTOA(prefix, type)	\
char *prefix##toa(char* buf, type j, int base) 	{	\
    char *s; char *t; char tmp;	\
    s = buf;	\
    do { int n = j % base;		\
	if (n <= 9) *s++ = '0'+n;	\
	else *s++ = 'a'-10+n;		\
        j /= base; } while (j);	\
    *s-- = 0;					\
	for (t = buf; t < s; ) { tmp = *t; *t++ = *s; *s-- = tmp; }	\
    return buf; }