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Remove disabled FP support.
From Okan Demirmen.
Index: ksh_limval.h
===================================================================
RCS file: /home/okan/hack/open/cvs/src/bin/ksh/ksh_limval.h,v
retrieving revision 1.2
diff -u -p -r1.2 ksh_limval.h
--- ksh_limval.h 18 Dec 2004 20:55:52 -0000 1.2
+++ ksh_limval.h 14 Mar 2011 10:03:41 -0000
@@ -4,10 +4,6 @@
/* limits.h is included in sh.h */
-#ifndef DMAXEXP
-# define DMAXEXP 128 /* should be big enough */
-#endif
-
#ifndef BITS
# define BITS(t) (CHAR_BIT * sizeof(t))
#endif
Index: shf.c
===================================================================
RCS file: /home/okan/hack/open/cvs/src/bin/ksh/shf.c,v
retrieving revision 1.15
diff -u -p -r1.15 shf.c
--- shf.c 2 Apr 2006 00:48:33 -0000 1.15
+++ shf.c 14 Mar 2011 10:03:19 -0000
@@ -705,15 +705,7 @@ shf_smprintf(const char *fmt, ...)
return shf_sclose(&shf); /* null terminates */
}
-#undef FP /* if you want floating point stuff */
-
#define BUF_SIZE 128
-#define FPBUF_SIZE (DMAXEXP+16)/* this must be >
- * MAX(DMAXEXP, log10(pow(2, DSIGNIF)))
- * + ceil(log10(DMAXEXP)) + 8 (I think).
- * Since this is hard to express as a
- * constant, just use a large buffer.
- */
/*
* What kinda of machine we on? Hopefully the C compiler will optimize
@@ -744,18 +736,6 @@ shf_smprintf(const char *fmt, ...)
#define FL_NUMBER 0x200 /* a number was formated %[douxefg] */
-#ifdef FP
-#include <math.h>
-
-static double
-my_ceil(double d)
-{
- double i;
-
- return d - modf(d, &i) + (d < 0 ? -1 : 1);
-}
-#endif /* FP */
-
int
shf_vfprintf(struct shf *shf, const char *fmt, va_list args)
{
@@ -769,17 +749,6 @@ shf_vfprintf(struct shf *shf, const char
char numbuf[(BITS(long) + 2) / 3 + 1];
/* this stuff for dealing with the buffer */
int nwritten = 0;
-#ifdef FP
- /* should be in <math.h>
- * extern double frexp();
- */
- extern char *ecvt();
-
- double fpnum;
- int expo, decpt;
- char style;
- char fpbuf[FPBUF_SIZE];
-#endif /* FP */
if (!fmt)
return 0;
@@ -922,134 +922,6 @@ shf_vfprintf(struct shf *shf, const char
}
break;
-#ifdef FP
- case 'e':
- case 'g':
- case 'f':
- {
- char *p;
-
- /*
- * This could probably be done better,
- * but it seems to work. Note that gcvt()
- * is not used, as you cannot tell it to
- * not strip the zeros.
- */
- flags |= FL_NUMBER;
- if (!(flags & FL_DOT))
- precision = 6; /* default */
- /*
- * Assumes doubles are pushed on
- * the stack. If this is not so, then
- * FL_LLONG/FL_LONG/FL_SHORT should be checked.
- */
- fpnum = va_arg(args, double);
- s = fpbuf;
- style = c;
- /*
- * This is the same as
- * expo = ceil(log10(fpnum))
- * but doesn't need -lm. This is an
- * approximation as expo is rounded up.
- */
- (void) frexp(fpnum, &expo);
- expo = my_ceil(expo / LOG2_10);
-
- if (expo < 0)
- expo = 0;
-
- p = ecvt(fpnum, precision + 1 + expo,
- &decpt, &tmp);
- if (c == 'g') {
- if (decpt < -4 || decpt > precision)
- style = 'e';
- else
- style = 'f';
- if (decpt > 0 && (precision -= decpt) < 0)
- precision = 0;
- }
- if (tmp)
- *s++ = '-';
- else if (flags & FL_PLUS)
- *s++ = '+';
- else if (flags & FL_BLANK)
- *s++ = ' ';
-
- if (style == 'e')
- *s++ = *p++;
- else {
- if (decpt > 0) {
- /* Overflow check - should
- * never have this problem.
- */
- if (decpt > &fpbuf[sizeof(fpbuf)] - s - 8)
- decpt = &fpbuf[sizeof(fpbuf)] - s - 8;
- (void) memcpy(s, p, decpt);
- s += decpt;
- p += decpt;
- } else
- *s++ = '0';
- }
-
- /* print the fraction? */
- if (precision > 0) {
- *s++ = '.';
- /* Overflow check - should
- * never have this problem.
- */
- if (precision > &fpbuf[sizeof(fpbuf)] - s - 7)
- precision = &fpbuf[sizeof(fpbuf)] - s - 7;
- for (tmp = decpt; tmp++ < 0 &&
- precision > 0 ; precision--)
- *s++ = '0';
- tmp = strlen(p);
- if (precision > tmp)
- precision = tmp;
- /* Overflow check - should
- * never have this problem.
- */
- if (precision > &fpbuf[sizeof(fpbuf)] - s - 7)
- precision = &fpbuf[sizeof(fpbuf)] - s - 7;
- (void) memcpy(s, p, precision);
- s += precision;
- /*
- * `g' format strips trailing
- * zeros after the decimal.
- */
- if (c == 'g' && !(flags & FL_HASH)) {
- while (*--s == '0')
- ;
- if (*s != '.')
- s++;
- }
- } else if (flags & FL_HASH)
- *s++ = '.';
-
- if (style == 'e') {
- *s++ = (flags & FL_UPPER) ? 'E' : 'e';
- if (--decpt >= 0)
- *s++ = '+';
- else {
- *s++ = '-';
- decpt = -decpt;
- }
- p = &numbuf[sizeof(numbuf)];
- for (tmp = 0; tmp < 2 || decpt ; tmp++) {
- *--p = '0' + decpt % 10;
- decpt /= 10;
- }
- tmp = &numbuf[sizeof(numbuf)] - p;
- (void) memcpy(s, p, tmp);
- s += tmp;
- }
-
- len = s - fpbuf;
- s = fpbuf;
- precision = len;
- break;
- }
-#endif /* FP */
-
case 's':
if (!(s = va_arg(args, char *)))
s = "(null %s)";
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