kolibrios/programs/develop/ktcc/trunk/libc.obj/source/stdlib/itoa.c

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#include <string.h>
#include <sys/ksys.h>
char *__reverse(char *str)
{
char tmp, *src, *dst;
size_t len;
if (str != NULL){
len = strlen (str);
if (len > 1) {
src = str;
dst = src + len - 1;
while (src < dst) {
tmp = *src;
*src++ = *dst;
*dst-- = tmp;
}
}
}
return str;
}
/* itoa from K&R */
void itoa(int n, char s[])
{
int i, sign;
if ((sign = n) < 0) /* record sign */
n = -n; /* make n positive */
i = 0;
do { /* generate digits in reverse order */
s[i++] = n % 10 + '0'; /* get next digit */
} while ((n /= 10) > 0); /* delete it */
if (sign < 0)
s[i++] = '-';
__reverse(s);
s[i] = '\0';
return;
}