gcc/libf2c/libI77/fmtlib.c

47 lines
818 B
C

/* @(#)fmtlib.c 1.2 */
#define MAXINTLENGTH 23
#include "config.h"
#include "f2c.h"
#ifndef Allow_TYQUAD
#undef longint
#define longint long
#undef ulongint
#define ulongint unsigned long
#endif
#ifdef KR_headers
char *f__icvt(value,ndigit,sign, base) longint value; int *ndigit,*sign;
register int base;
#else
char *f__icvt(longint value, int *ndigit, int *sign, int base)
#endif
{
static char buf[MAXINTLENGTH+1];
register int i;
ulongint uvalue;
if(value > 0) {
uvalue = value;
*sign = 0;
}
else if (value < 0) {
uvalue = -value;
*sign = 1;
}
else {
*sign = 0;
*ndigit = 1;
buf[MAXINTLENGTH-1] = '0';
return &buf[MAXINTLENGTH-1];
}
i = MAXINTLENGTH;
do {
buf[--i] = (uvalue%base) + '0';
uvalue /= base;
}
while(uvalue > 0);
*ndigit = MAXINTLENGTH - i;
return &buf[i];
}