Removed unused files in preparation for merging py3k-short-float-repr.

Python/atof.c

-
-/* Just in case you haven't got an atof() around...
-   This one doesn't check for bad syntax or overflow,
-   and is slow and inaccurate.
-   But it's good enough for the occasional string literal... */
-
-#include "pyconfig.h"
-
-#include <ctype.h>
-
-double atof(char *s)
-{
-	double a = 0.0;
-	int e = 0;
-	int c;
-	while ((c = *s++) != '\0' && isdigit(c)) {
-		a = a*10.0 + (c - '0');
-	}
-	if (c == '.') {
-		while ((c = *s++) != '\0' && isdigit(c)) {
-			a = a*10.0 + (c - '0');
-			e = e-1;
-		}
-	}
-	if (c == 'e' || c == 'E') {
-		int sign = 1;
-		int i = 0;
-		c = *s++;
-		if (c == '+')
-			c = *s++;
-		else if (c == '-') {
-			c = *s++;
-			sign = -1;
-		}
-		while (isdigit(c)) {
-			i = i*10 + (c - '0');
-			c = *s++;
-		}
-		e += i*sign;
-	}
-	while (e > 0) {
-		a *= 10.0;
-		e--;
-	}
-	while (e < 0) {
-		a *= 0.1;
-		e++;
-	}
-	return a;
-}

Python/strtod.c

-#include "pyconfig.h"
-
-/* comp.sources.misc strtod(), as posted in comp.lang.tcl,
-   with bugfix for "123000.0" and acceptance of space after 'e' sign nuked.
-
-   ************************************************************
-   * YOU MUST EDIT THE MACHINE-DEPENDENT DEFINITIONS BELOW!!! *
-   ************************************************************
-*/
-
-/*  File   : stdtod.c (Modified version of str2dbl.c)
-    Author : Richard A. O'Keefe @ Quintus Computer Systems, Inc.
-    Updated: Tuesday August 2nd, 1988
-    Defines: double strtod (char *str, char**ptr)
-*/
-
-/*  This is an implementation of the strtod() function described in the 
-    System V manuals, with a different name to avoid linker problems.
-    All that str2dbl() does itself is check that the argument is well-formed
-    and is in range.  It leaves the work of conversion to atof(), which is
-    assumed to exist and deliver correct results (if they can be represented).
-
-    There are two reasons why this should be provided to the net:
-    (a) some UNIX systems do not yet have strtod(), or do not have it
-        available in the BSD "universe" (but they do have atof()).
-    (b) some of the UNIX systems that *do* have it get it wrong.
-	(some crash with large arguments, some assign the wrong *ptr value).
-    There is a reason why *we* are providing it: we need a correct version
-    of strtod(), and if we give this one away maybe someone will look for
-    mistakes in it and fix them for us (:-).
-*/
-    
-/*  The following constants are machine-specific.  MD{MIN,MAX}EXPT are
-    integers and MD{MIN,MAX}FRAC are strings such that
-	0.${MDMAXFRAC}e${MDMAXEXPT} is the largest representable double,
-	0.${MDMINFRAC}e${MDMINEXPT} is the smallest representable +ve double
-    MD{MIN,MAX}FRAC must not have any trailing zeros.
-    The values here are for IEEE-754 64-bit floats.
-    It is not perfectly clear to me whether an IEEE infinity should be
-    returned for overflow, nor what a portable way of writing one is,
-    so HUGE is just 0.MAXFRAC*10**MAXEXPT (this seems still to be the
-    UNIX convention).
-
-    I do know about <values.h>, but the whole point of this file is that
-    we can't always trust that stuff to be there or to be correct.
-*/
-static	int	MDMINEXPT	= -323;
-static	char	MDMINFRAC[]	= "494065645841246544";
-static	double	ZERO		= 0.0;
-
-static	int	MDMAXEXPT	= 309;
-static	char	MDMAXFRAC[]	= "17976931348623157";
-static	double	HUGE		= 1.7976931348623157e308;
-
-extern	double	atof(const char *);		/* Only called when result known to be ok */
-
-#ifdef HAVE_ERRNO_H
-#include <errno.h>
-#endif
-extern	int	errno;
-
-double strtod(char *str, char **ptr)
-{
-	int sign, scale, dotseen;
-	int esign, expt;
-	char *save;
-	register char *sp, *dp;
-	register int c;
-	char *buforg, *buflim;
-	char buffer[64];		/* 45-digit significant + */
-					/* 13-digit exponent */
-	sp = str;
-	while (*sp == ' ') sp++;
-	sign = 1;
-	if (*sp == '-') sign -= 2, sp++;
-	dotseen = 0, scale = 0;
-	dp = buffer;	
-	*dp++ = '0'; *dp++ = '.';
-	buforg = dp, buflim = buffer+48;
-	for (save = sp; c = *sp; sp++)
-	    if (c == '.') {
-		if (dotseen) break;
-		dotseen++;
-	    } else
-	    if ((unsigned)(c-'0') > (unsigned)('9'-'0')) {
-		break;
-	    } else
-	    if (c == '0') {
-		if (dp != buforg) {
-		    /* This is not the first digit, so we want to keep it */
-		    if (dp < buflim) *dp++ = c;
-		    if (!dotseen) scale++;
-		} else {
-		    /* No non-zero digits seen yet */
-		    /* If a . has been seen, scale must be adjusted */
-		    if (dotseen) scale--;
-		}
-	    } else {
-		/* This is a nonzero digit, so we want to keep it */
-		if (dp < buflim) *dp++ = c;
-		/* If it precedes a ., scale must be adjusted */
-		if (!dotseen) scale++;
-	    }
-	if (sp == save) {
-	    if (ptr) *ptr = str;
-	    errno = EDOM;		/* what should this be? */
-	    return ZERO;
-	}
-	
-	while (dp > buforg && dp[-1] == '0') --dp;
-	if (dp == buforg) *dp++ = '0';
-	*dp = '\0';
-	/*  Now the contents of buffer are
-	    +--+--------+-+--------+
-	    |0.|fraction|\|leftover|
-	    +--+--------+-+--------+
-			 ^dp points here
-	    where fraction begins with 0 iff it is "0", and has at most
-	    45 digits in it, and leftover is at least 16 characters.
-	*/
-	save = sp, expt = 0, esign = 1;
-	do {
-	    c = *sp++;
-	    if (c != 'e' && c != 'E') break;
-	    c = *sp++;
-	    if (c == '-') esign -= 2, c = *sp++; else
-	    if (c == '+' /* || c == ' ' */ ) c = *sp++;
-	    if ((unsigned)(c-'0') > (unsigned)('9'-'0')) break;
-	    while (c == '0') c = *sp++;
-	    for (; (unsigned)(c-'0') <= (unsigned)('9'-'0'); c = *sp++)
-		expt = expt*10 + c-'0';	    
-	    if (esign < 0) expt = -expt;
-	    save = sp-1;
-	} while (0);
-	if (ptr) *ptr = save;
-	expt += scale;
-	/*  Now the number is sign*0.fraction*10**expt  */
-	errno = ERANGE;
-	if (expt > MDMAXEXPT) {
-	    return HUGE*sign;
-	} else
-	if (expt == MDMAXEXPT) {
-	    if (strcmp(buforg, MDMAXFRAC) > 0) return HUGE*sign;
-	} else
-	if (expt < MDMINEXPT) {
-	    return ZERO*sign;
-	} else
-	if (expt == MDMINEXPT) {
-	    if (strcmp(buforg, MDMINFRAC) < 0) return ZERO*sign;
-	}
-	/*  We have now established that the number can be  */
-	/*  represented without overflow or underflow  */
-	(void) sprintf(dp, "E%d", expt);
-	errno = 0;
-	return atof(buffer)*sign;
-}