lib/libI77/fmtlib.c


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39

/*	@(#)fmtlib.c	1.2	*/
#define MAXINTLENGTH 23

#include "f2c.h"
#ifndef Allow_TYQUAD
#undef longint
#define longint 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;

	if(value > 0)
		*sign = 0;
	else if (value < 0) {
		value = -value;
		*sign = 1;
		}
	else {
		*sign = 0;
		*ndigit = 1;
		buf[MAXINTLENGTH-1] = '0';
		return &buf[MAXINTLENGTH-1];
		}
	i = MAXINTLENGTH;
	do {
		buf[--i] = (value%base) + '0';
		value /= base;
		}
		while(value > 0);
	*ndigit = MAXINTLENGTH - i;
	return &buf[i];
	}