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935 lines
21 KiB
C
935 lines
21 KiB
C
/* ====================================================================
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* Copyright (c) 1995-1998 The Apache Group. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* 3. All advertising materials mentioning features or use of this
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* software must display the following acknowledgment:
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* "This product includes software developed by the Apache Group
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* for use in the Apache HTTP server project (http://www.apache.org/)."
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*
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* 4. The names "Apache Server" and "Apache Group" must not be used to
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* endorse or promote products derived from this software without
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* prior written permission.
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*
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* 5. Redistributions of any form whatsoever must retain the following
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* acknowledgment:
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* "This product includes software developed by the Apache Group
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* for use in the Apache HTTP server project (http://www.apache.org/)."
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*
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* THIS SOFTWARE IS PROVIDED BY THE APACHE GROUP ``AS IS'' AND ANY
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* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE APACHE GROUP OR
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* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
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* OF THE POSSIBILITY OF SUCH DAMAGE.
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* ====================================================================
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*
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* This software consists of voluntary contributions made by many
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* individuals on behalf of the Apache Group and was originally based
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* on public domain software written at the National Center for
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* Supercomputing Applications, University of Illinois, Urbana-Champaign.
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* For more information on the Apache Group and the Apache HTTP server
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* project, please see <http://www.apache.org/>.
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*
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* This code is based on, and used with the permission of, the
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* SIO stdio-replacement strx_* functions by Panos Tsirigotis
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* <panos@alumni.cs.colorado.edu> for xinetd.
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*/
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#include "php.h"
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#if !defined(APACHE) || (!APACHE)
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#if !defined(HAVE_SNPRINTF) || !defined(HAVE_VSNPRINTF)
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#include <stdio.h>
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#include <ctype.h>
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#include <sys/types.h>
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#include <stdarg.h>
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#include <string.h>
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#include <stdlib.h>
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#include <math.h>
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#ifdef HAVE_GCVT
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#define ap_ecvt ecvt
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#define ap_fcvt fcvt
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#define ap_gcvt gcvt
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#else
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/*
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* cvt.c - IEEE floating point formatting routines for FreeBSD
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* from GNU libc-4.6.27
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*/
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/*
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* ap_ecvt converts to decimal
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* the number of digits is specified by ndigit
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* decpt is set to the position of the decimal point
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* sign is set to 0 for positive, 1 for negative
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*/
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#define NDIG 80
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static char *
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ap_cvt(double arg, int ndigits, int *decpt, int *sign, int eflag)
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{
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register int r2;
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double fi, fj;
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register char *p, *p1;
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static char buf[NDIG];
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if (ndigits >= NDIG - 1)
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ndigits = NDIG - 2;
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r2 = 0;
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*sign = 0;
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p = &buf[0];
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if (arg < 0) {
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*sign = 1;
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arg = -arg;
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}
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arg = modf(arg, &fi);
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p1 = &buf[NDIG];
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/*
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* Do integer part
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*/
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if (fi != 0) {
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p1 = &buf[NDIG];
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while (fi != 0) {
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fj = modf(fi / 10, &fi);
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*--p1 = (int) ((fj + .03) * 10) + '0';
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r2++;
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}
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while (p1 < &buf[NDIG])
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*p++ = *p1++;
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} else if (arg > 0) {
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while ((fj = arg * 10) < 1) {
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arg = fj;
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r2--;
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}
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}
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p1 = &buf[ndigits];
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if (eflag == 0)
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p1 += r2;
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*decpt = r2;
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if (p1 < &buf[0]) {
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buf[0] = '\0';
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return (buf);
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}
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while (p <= p1 && p < &buf[NDIG]) {
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arg *= 10;
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arg = modf(arg, &fj);
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*p++ = (int) fj + '0';
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}
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if (p1 >= &buf[NDIG]) {
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buf[NDIG - 1] = '\0';
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return (buf);
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}
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p = p1;
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*p1 += 5;
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while (*p1 > '9') {
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*p1 = '0';
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if (p1 > buf)
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++ * --p1;
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else {
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*p1 = '1';
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(*decpt)++;
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if (eflag == 0) {
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if (p > buf)
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*p = '0';
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p++;
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}
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}
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}
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*p = '\0';
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return (buf);
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}
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static char *
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ap_ecvt(double arg, int ndigits, int *decpt, int *sign)
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{
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return (ap_cvt(arg, ndigits, decpt, sign, 1));
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}
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static char *
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ap_fcvt(double arg, int ndigits, int *decpt, int *sign)
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{
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return (ap_cvt(arg, ndigits, decpt, sign, 0));
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}
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/*
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* ap_gcvt - Floating output conversion to
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* minimal length string
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*/
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static char *
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ap_gcvt(double number, int ndigit, char *buf)
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{
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int sign, decpt;
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register char *p1, *p2;
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register i;
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p1 = ap_ecvt(number, ndigit, &decpt, &sign);
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p2 = buf;
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if (sign)
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*p2++ = '-';
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for (i = ndigit - 1; i > 0 && p1[i] == '0'; i--)
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ndigit--;
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if ((decpt >= 0 && decpt - ndigit > 4)
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|| (decpt < 0 && decpt < -3)) { /* use E-style */
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decpt--;
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*p2++ = *p1++;
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*p2++ = '.';
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for (i = 1; i < ndigit; i++)
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*p2++ = *p1++;
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*p2++ = 'e';
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if (decpt < 0) {
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decpt = -decpt;
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*p2++ = '-';
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} else
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*p2++ = '+';
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if (decpt / 100 > 0)
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*p2++ = decpt / 100 + '0';
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if (decpt / 10 > 0)
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*p2++ = (decpt % 100) / 10 + '0';
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*p2++ = decpt % 10 + '0';
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} else {
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if (decpt <= 0) {
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if (*p1 != '0')
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*p2++ = '.';
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while (decpt < 0) {
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decpt++;
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*p2++ = '0';
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}
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}
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for (i = 1; i <= ndigit; i++) {
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*p2++ = *p1++;
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if (i == decpt)
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*p2++ = '.';
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}
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if (ndigit < decpt) {
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while (ndigit++ < decpt)
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*p2++ = '0';
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*p2++ = '.';
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}
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}
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if (p2[-1] == '.')
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p2--;
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*p2 = '\0';
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return (buf);
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}
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#endif /* HAVE_CVT */
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typedef enum {
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NO = 0, YES = 1
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} boolean_e;
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#define FALSE 0
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#define TRUE 1
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#define NUL '\0'
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#define INT_NULL ((int *)0)
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#define WIDE_INT long
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typedef WIDE_INT wide_int;
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typedef unsigned WIDE_INT u_wide_int;
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typedef int bool_int;
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#define S_NULL "(null)"
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#define S_NULL_LEN 6
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#define FLOAT_DIGITS 6
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#define EXPONENT_LENGTH 10
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/*
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* NUM_BUF_SIZE is the size of the buffer used for arithmetic conversions
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*
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* XXX: this is a magic number; do not decrease it
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*/
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#define NUM_BUF_SIZE 512
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/*
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* Descriptor for buffer area
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*/
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struct buf_area {
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char *buf_end;
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char *nextb; /* pointer to next byte to read/write */
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};
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typedef struct buf_area buffy;
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/*
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* The INS_CHAR macro inserts a character in the buffer and writes
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* the buffer back to disk if necessary
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* It uses the char pointers sp and bep:
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* sp points to the next available character in the buffer
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* bep points to the end-of-buffer+1
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* While using this macro, note that the nextb pointer is NOT updated.
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*
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* NOTE: Evaluation of the c argument should not have any side-effects
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*/
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#define INS_CHAR( c, sp, bep, cc ) \
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{ \
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if ( sp < bep ) \
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{ \
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*sp++ = c ; \
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cc++ ; \
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} \
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}
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#define NUM( c ) ( c - '0' )
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#define STR_TO_DEC( str, num ) \
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num = NUM( *str++ ) ; \
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while ( isdigit((int)*str ) ) \
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{ \
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num *= 10 ; \
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num += NUM( *str++ ) ; \
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}
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/*
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* This macro does zero padding so that the precision
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* requirement is satisfied. The padding is done by
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* adding '0's to the left of the string that is going
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* to be printed.
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*/
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#define FIX_PRECISION( adjust, precision, s, s_len ) \
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if ( adjust ) \
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while ( s_len < precision ) \
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{ \
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*--s = '0' ; \
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s_len++ ; \
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}
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/*
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* Macro that does padding. The padding is done by printing
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* the character ch.
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*/
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#define PAD( width, len, ch ) do \
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{ \
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INS_CHAR( ch, sp, bep, cc ) ; \
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width-- ; \
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} \
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while ( width > len )
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/*
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* Prefix the character ch to the string str
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* Increase length
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* Set the has_prefix flag
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*/
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#define PREFIX( str, length, ch ) *--str = ch ; length++ ; has_prefix = YES
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/*
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* Convert num to its decimal format.
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* Return value:
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* - a pointer to a string containing the number (no sign)
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* - len contains the length of the string
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* - is_negative is set to TRUE or FALSE depending on the sign
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* of the number (always set to FALSE if is_unsigned is TRUE)
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*
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* The caller provides a buffer for the string: that is the buf_end argument
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* which is a pointer to the END of the buffer + 1 (i.e. if the buffer
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* is declared as buf[ 100 ], buf_end should be &buf[ 100 ])
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*/
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static char *
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conv_10(register wide_int num, register bool_int is_unsigned,
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register bool_int * is_negative, char *buf_end, register int *len)
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{
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register char *p = buf_end;
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register u_wide_int magnitude;
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if (is_unsigned) {
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magnitude = (u_wide_int) num;
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*is_negative = FALSE;
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} else {
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*is_negative = (num < 0);
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/*
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* On a 2's complement machine, negating the most negative integer
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* results in a number that cannot be represented as a signed integer.
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* Here is what we do to obtain the number's magnitude:
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* a. add 1 to the number
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* b. negate it (becomes positive)
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* c. convert it to unsigned
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* d. add 1
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*/
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if (*is_negative) {
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wide_int t = num + 1;
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magnitude = ((u_wide_int) - t) + 1;
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} else
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magnitude = (u_wide_int) num;
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}
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/*
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* We use a do-while loop so that we write at least 1 digit
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*/
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do {
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register u_wide_int new_magnitude = magnitude / 10;
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*--p = magnitude - new_magnitude * 10 + '0';
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magnitude = new_magnitude;
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}
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while (magnitude);
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*len = buf_end - p;
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return (p);
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}
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/*
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* Convert a floating point number to a string formats 'f', 'e' or 'E'.
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* The result is placed in buf, and len denotes the length of the string
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* The sign is returned in the is_negative argument (and is not placed
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* in buf).
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*/
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static char *
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conv_fp(register char format, register double num,
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boolean_e add_dp, int precision, bool_int * is_negative, char *buf, int *len)
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{
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register char *s = buf;
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register char *p;
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int decimal_point;
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if (format == 'f')
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p = ap_fcvt(num, precision, &decimal_point, is_negative);
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else /* either e or E format */
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p = ap_ecvt(num, precision + 1, &decimal_point, is_negative);
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/*
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* Check for Infinity and NaN
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*/
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if (isalpha((int)*p)) {
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*len = strlen(strcpy(buf, p));
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*is_negative = FALSE;
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return (buf);
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}
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if (format == 'f') {
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if (decimal_point <= 0) {
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*s++ = '0';
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if (precision > 0) {
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*s++ = '.';
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while (decimal_point++ < 0)
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*s++ = '0';
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} else if (add_dp) {
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*s++ = '.';
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}
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} else {
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while (decimal_point-- > 0) {
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*s++ = *p++;
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}
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if (precision > 0 || add_dp) {
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*s++ = '.';
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}
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}
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} else {
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*s++ = *p++;
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if (precision > 0 || add_dp)
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*s++ = '.';
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}
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/*
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* copy the rest of p, the NUL is NOT copied
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*/
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while (*p)
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*s++ = *p++;
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if (format != 'f') {
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char temp[EXPONENT_LENGTH]; /* for exponent conversion */
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int t_len;
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bool_int exponent_is_negative;
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*s++ = format; /* either e or E */
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decimal_point--;
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if (decimal_point != 0) {
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p = conv_10((wide_int) decimal_point, FALSE, &exponent_is_negative,
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&temp[EXPONENT_LENGTH], &t_len);
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*s++ = exponent_is_negative ? '-' : '+';
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/*
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* Make sure the exponent has at least 2 digits
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*/
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if (t_len == 1)
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*s++ = '0';
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while (t_len--)
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*s++ = *p++;
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} else {
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*s++ = '+';
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*s++ = '0';
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*s++ = '0';
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}
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}
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*len = s - buf;
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return (buf);
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}
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|
|
|
|
/*
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* Convert num to a base X number where X is a power of 2. nbits determines X.
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|
* For example, if nbits is 3, we do base 8 conversion
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|
* Return value:
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* a pointer to a string containing the number
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|
*
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* The caller provides a buffer for the string: that is the buf_end argument
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|
* which is a pointer to the END of the buffer + 1 (i.e. if the buffer
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* is declared as buf[ 100 ], buf_end should be &buf[ 100 ])
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*/
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static char *
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conv_p2(register u_wide_int num, register int nbits,
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|
char format, char *buf_end, register int *len)
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|
{
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|
register int mask = (1 << nbits) - 1;
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|
register char *p = buf_end;
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|
static char low_digits[] = "0123456789abcdef";
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|
static char upper_digits[] = "0123456789ABCDEF";
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|
register char *digits = (format == 'X') ? upper_digits : low_digits;
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do {
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|
*--p = digits[num & mask];
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num >>= nbits;
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}
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|
while (num);
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*len = buf_end - p;
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return (p);
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}
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|
|
|
|
/*
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|
* Do format conversion placing the output in buffer
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|
*/
|
|
static int format_converter(register buffy * odp, const char *fmt,
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|
va_list ap)
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|
{
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|
register char *sp;
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|
register char *bep;
|
|
register int cc = 0;
|
|
register int i;
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|
|
register char *s = NULL;
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|
char *q;
|
|
int s_len;
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|
|
|
register int min_width = 0;
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|
int precision = 0;
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|
enum {
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LEFT, RIGHT
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|
} adjust;
|
|
char pad_char;
|
|
char prefix_char;
|
|
|
|
double fp_num;
|
|
wide_int i_num = (wide_int) 0;
|
|
u_wide_int ui_num;
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|
|
|
char num_buf[NUM_BUF_SIZE];
|
|
char char_buf[2]; /* for printing %% and %<unknown> */
|
|
|
|
/*
|
|
* Flag variables
|
|
*/
|
|
boolean_e is_long;
|
|
boolean_e alternate_form;
|
|
boolean_e print_sign;
|
|
boolean_e print_blank;
|
|
boolean_e adjust_precision;
|
|
boolean_e adjust_width;
|
|
bool_int is_negative;
|
|
|
|
sp = odp->nextb;
|
|
bep = odp->buf_end;
|
|
|
|
while (*fmt) {
|
|
if (*fmt != '%') {
|
|
INS_CHAR(*fmt, sp, bep, cc);
|
|
} else {
|
|
/*
|
|
* Default variable settings
|
|
*/
|
|
adjust = RIGHT;
|
|
alternate_form = print_sign = print_blank = NO;
|
|
pad_char = ' ';
|
|
prefix_char = NUL;
|
|
|
|
fmt++;
|
|
|
|
/*
|
|
* Try to avoid checking for flags, width or precision
|
|
*/
|
|
if (isascii((int)*fmt) && !islower((int)*fmt)) {
|
|
/*
|
|
* Recognize flags: -, #, BLANK, +
|
|
*/
|
|
for (;; fmt++) {
|
|
if (*fmt == '-')
|
|
adjust = LEFT;
|
|
else if (*fmt == '+')
|
|
print_sign = YES;
|
|
else if (*fmt == '#')
|
|
alternate_form = YES;
|
|
else if (*fmt == ' ')
|
|
print_blank = YES;
|
|
else if (*fmt == '0')
|
|
pad_char = '0';
|
|
else
|
|
break;
|
|
}
|
|
|
|
/*
|
|
* Check if a width was specified
|
|
*/
|
|
if (isdigit((int)*fmt)) {
|
|
STR_TO_DEC(fmt, min_width);
|
|
adjust_width = YES;
|
|
} else if (*fmt == '*') {
|
|
min_width = va_arg(ap, int);
|
|
fmt++;
|
|
adjust_width = YES;
|
|
if (min_width < 0) {
|
|
adjust = LEFT;
|
|
min_width = -min_width;
|
|
}
|
|
} else
|
|
adjust_width = NO;
|
|
|
|
/*
|
|
* Check if a precision was specified
|
|
*
|
|
* XXX: an unreasonable amount of precision may be specified
|
|
* resulting in overflow of num_buf. Currently we
|
|
* ignore this possibility.
|
|
*/
|
|
if (*fmt == '.') {
|
|
adjust_precision = YES;
|
|
fmt++;
|
|
if (isdigit((int)*fmt)) {
|
|
STR_TO_DEC(fmt, precision);
|
|
} else if (*fmt == '*') {
|
|
precision = va_arg(ap, int);
|
|
fmt++;
|
|
if (precision < 0)
|
|
precision = 0;
|
|
} else
|
|
precision = 0;
|
|
} else
|
|
adjust_precision = NO;
|
|
} else
|
|
adjust_precision = adjust_width = NO;
|
|
|
|
/*
|
|
* Modifier check
|
|
*/
|
|
if (*fmt == 'l') {
|
|
is_long = YES;
|
|
fmt++;
|
|
} else
|
|
is_long = NO;
|
|
|
|
/*
|
|
* Argument extraction and printing.
|
|
* First we determine the argument type.
|
|
* Then, we convert the argument to a string.
|
|
* On exit from the switch, s points to the string that
|
|
* must be printed, s_len has the length of the string
|
|
* The precision requirements, if any, are reflected in s_len.
|
|
*
|
|
* NOTE: pad_char may be set to '0' because of the 0 flag.
|
|
* It is reset to ' ' by non-numeric formats
|
|
*/
|
|
switch (*fmt) {
|
|
case 'u':
|
|
if (is_long)
|
|
i_num = va_arg(ap, u_wide_int);
|
|
else
|
|
i_num = (wide_int) va_arg(ap, unsigned int);
|
|
/*
|
|
* The rest also applies to other integer formats, so fall
|
|
* into that case.
|
|
*/
|
|
case 'd':
|
|
case 'i':
|
|
/*
|
|
* Get the arg if we haven't already.
|
|
*/
|
|
if ((*fmt) != 'u') {
|
|
if (is_long)
|
|
i_num = va_arg(ap, wide_int);
|
|
else
|
|
i_num = (wide_int) va_arg(ap, int);
|
|
};
|
|
s = conv_10(i_num, (*fmt) == 'u', &is_negative,
|
|
&num_buf[NUM_BUF_SIZE], &s_len);
|
|
FIX_PRECISION(adjust_precision, precision, s, s_len);
|
|
|
|
if (*fmt != 'u') {
|
|
if (is_negative)
|
|
prefix_char = '-';
|
|
else if (print_sign)
|
|
prefix_char = '+';
|
|
else if (print_blank)
|
|
prefix_char = ' ';
|
|
}
|
|
break;
|
|
|
|
|
|
case 'o':
|
|
if (is_long)
|
|
ui_num = va_arg(ap, u_wide_int);
|
|
else
|
|
ui_num = (u_wide_int) va_arg(ap, unsigned int);
|
|
s = conv_p2(ui_num, 3, *fmt,
|
|
&num_buf[NUM_BUF_SIZE], &s_len);
|
|
FIX_PRECISION(adjust_precision, precision, s, s_len);
|
|
if (alternate_form && *s != '0') {
|
|
*--s = '0';
|
|
s_len++;
|
|
}
|
|
break;
|
|
|
|
|
|
case 'x':
|
|
case 'X':
|
|
if (is_long)
|
|
ui_num = (u_wide_int) va_arg(ap, u_wide_int);
|
|
else
|
|
ui_num = (u_wide_int) va_arg(ap, unsigned int);
|
|
s = conv_p2(ui_num, 4, *fmt,
|
|
&num_buf[NUM_BUF_SIZE], &s_len);
|
|
FIX_PRECISION(adjust_precision, precision, s, s_len);
|
|
if (alternate_form && i_num != 0) {
|
|
*--s = *fmt; /* 'x' or 'X' */
|
|
*--s = '0';
|
|
s_len += 2;
|
|
}
|
|
break;
|
|
|
|
|
|
case 's':
|
|
s = va_arg(ap, char *);
|
|
if (s != NULL) {
|
|
s_len = strlen(s);
|
|
if (adjust_precision && precision < s_len)
|
|
s_len = precision;
|
|
} else {
|
|
s = S_NULL;
|
|
s_len = S_NULL_LEN;
|
|
}
|
|
pad_char = ' ';
|
|
break;
|
|
|
|
|
|
case 'f':
|
|
case 'e':
|
|
case 'E':
|
|
fp_num = va_arg(ap, double);
|
|
|
|
s = conv_fp(*fmt, fp_num, alternate_form,
|
|
(adjust_precision == NO) ? FLOAT_DIGITS : precision,
|
|
&is_negative, &num_buf[1], &s_len);
|
|
if (is_negative)
|
|
prefix_char = '-';
|
|
else if (print_sign)
|
|
prefix_char = '+';
|
|
else if (print_blank)
|
|
prefix_char = ' ';
|
|
break;
|
|
|
|
|
|
case 'g':
|
|
case 'G':
|
|
if (adjust_precision == NO)
|
|
precision = FLOAT_DIGITS;
|
|
else if (precision == 0)
|
|
precision = 1;
|
|
/*
|
|
* * We use &num_buf[ 1 ], so that we have room for the sign
|
|
*/
|
|
s = ap_gcvt(va_arg(ap, double), precision, &num_buf[1]);
|
|
if (*s == '-')
|
|
prefix_char = *s++;
|
|
else if (print_sign)
|
|
prefix_char = '+';
|
|
else if (print_blank)
|
|
prefix_char = ' ';
|
|
|
|
s_len = strlen(s);
|
|
|
|
if (alternate_form && (q = strchr(s, '.')) == NULL)
|
|
s[s_len++] = '.';
|
|
if (*fmt == 'G' && (q = strchr(s, 'e')) != NULL)
|
|
*q = 'E';
|
|
break;
|
|
|
|
|
|
case 'c':
|
|
char_buf[0] = (char) (va_arg(ap, int));
|
|
s = &char_buf[0];
|
|
s_len = 1;
|
|
pad_char = ' ';
|
|
break;
|
|
|
|
|
|
case '%':
|
|
char_buf[0] = '%';
|
|
s = &char_buf[0];
|
|
s_len = 1;
|
|
pad_char = ' ';
|
|
break;
|
|
|
|
|
|
case 'n':
|
|
*(va_arg(ap, int *)) = cc;
|
|
break;
|
|
|
|
/*
|
|
* Always extract the argument as a "char *" pointer. We
|
|
* should be using "void *" but there are still machines
|
|
* that don't understand it.
|
|
* If the pointer size is equal to the size of an unsigned
|
|
* integer we convert the pointer to a hex number, otherwise
|
|
* we print "%p" to indicate that we don't handle "%p".
|
|
*/
|
|
case 'p':
|
|
ui_num = (u_wide_int) va_arg(ap, char *);
|
|
|
|
if (sizeof(char *) <= sizeof(u_wide_int))
|
|
s = conv_p2(ui_num, 4, 'x',
|
|
&num_buf[NUM_BUF_SIZE], &s_len);
|
|
else {
|
|
s = "%p";
|
|
s_len = 2;
|
|
}
|
|
pad_char = ' ';
|
|
break;
|
|
|
|
|
|
case NUL:
|
|
/*
|
|
* The last character of the format string was %.
|
|
* We ignore it.
|
|
*/
|
|
continue;
|
|
|
|
|
|
/*
|
|
* The default case is for unrecognized %'s.
|
|
* We print %<char> to help the user identify what
|
|
* option is not understood.
|
|
* This is also useful in case the user wants to pass
|
|
* the output of format_converter to another function
|
|
* that understands some other %<char> (like syslog).
|
|
* Note that we can't point s inside fmt because the
|
|
* unknown <char> could be preceded by width etc.
|
|
*/
|
|
default:
|
|
char_buf[0] = '%';
|
|
char_buf[1] = *fmt;
|
|
s = char_buf;
|
|
s_len = 2;
|
|
pad_char = ' ';
|
|
break;
|
|
}
|
|
|
|
if (prefix_char != NUL) {
|
|
*--s = prefix_char;
|
|
s_len++;
|
|
}
|
|
if (adjust_width && adjust == RIGHT && min_width > s_len) {
|
|
if (pad_char == '0' && prefix_char != NUL) {
|
|
INS_CHAR(*s, sp, bep, cc)
|
|
s++;
|
|
s_len--;
|
|
min_width--;
|
|
}
|
|
PAD(min_width, s_len, pad_char);
|
|
}
|
|
/*
|
|
* Print the string s.
|
|
*/
|
|
for (i = s_len; i != 0; i--) {
|
|
INS_CHAR(*s, sp, bep, cc);
|
|
s++;
|
|
}
|
|
|
|
if (adjust_width && adjust == LEFT && min_width > s_len)
|
|
PAD(min_width, s_len, pad_char);
|
|
}
|
|
fmt++;
|
|
}
|
|
odp->nextb = sp;
|
|
return (cc);
|
|
}
|
|
|
|
|
|
/*
|
|
* This is the general purpose conversion function.
|
|
*/
|
|
static void strx_printv(int *ccp, char *buf, size_t len, const char *format,
|
|
va_list ap)
|
|
{
|
|
buffy od;
|
|
int cc;
|
|
|
|
/*
|
|
* First initialize the descriptor
|
|
* Notice that if no length is given, we initialize buf_end to the
|
|
* highest possible address.
|
|
*/
|
|
od.buf_end = len ? &buf[len] : (char *) ~0;
|
|
od.nextb = buf;
|
|
|
|
/*
|
|
* Do the conversion
|
|
*/
|
|
cc = format_converter(&od, format, ap);
|
|
if (len == 0 || od.nextb <= od.buf_end)
|
|
*(od.nextb) = '\0';
|
|
if (ccp)
|
|
*ccp = cc;
|
|
}
|
|
|
|
|
|
int ap_snprintf(char *buf, size_t len, const char *format,...)
|
|
{
|
|
int cc;
|
|
va_list ap;
|
|
|
|
va_start(ap, format);
|
|
strx_printv(&cc, buf, (len - 1), format, ap);
|
|
va_end(ap);
|
|
return (cc);
|
|
}
|
|
|
|
|
|
int ap_vsnprintf(char *buf, size_t len, const char *format, va_list ap)
|
|
{
|
|
int cc;
|
|
|
|
strx_printv(&cc, buf, (len - 1), format, ap);
|
|
return (cc);
|
|
}
|
|
|
|
#endif /* HAVE_SNPRINTF */
|
|
#endif /* APACHE */
|