panthema / 2006 / SDIOS06 / sdios06 / lib / libc / __ltostr.c (Download File)
#include <string.h>
#include <stdlib.h>

int __ltostr(char *s, unsigned int size, unsigned long i, unsigned int base, int UpCase)
{
	char *tmp;
	unsigned int j=0;

	s[--size]=0;

	tmp=s+size;

	if ((base==0)||(base>36)) base=10;

	j=0;
	if (!i)
	{
		*(--tmp)='0';
		j=1;
	}

	while((tmp>s)&&(i))
	{
		tmp--;
		if ((*tmp=i%base+'0')>'9') *tmp+=(UpCase?'A':'a')-'9'-1;
		i=i/base;
		j++;
	}
	memmove(s,tmp,j+1);

	return j;
}