>>252
int YenConvert(int kingaku,int mode,char *buffer,int result)
{
char work[20], *p=work;
char *fmt[][2]={{NULL, NULL}, {"%d", "%03d"}, {"%d", ",%03d"}};
int div, kingaku_abs;

if(mode!=1 && mode!=2) return -1;
kingaku_abs=abs(kingaku);
*p++='\\';
for(div=1;kingaku_abs/div>=1000;div*=1000);
p+=sprintf(p, fmt_set[mode][0], kingaku/div);
for(div/=1000;div>0;div/=1000) p+=sprintf(p, fmt[mode][1], (kingaku_abs/div)%1000);

if(strlen(work)+1>result) return -2;
strcpy(buffer, work);

return 0;
}