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110 lines
2.9 KiB
C++
Executable File
110 lines
2.9 KiB
C++
Executable File
// File: OSD_Real2String.cxx
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// Created: Fri Jan 25 12:58:55 2002
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// Author: doneux <doneux@samcef.com>
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const static char sccsid[] = "@(#) OSD_Real2String.cxx %V%-1, 06/17/02@(#)";
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// Lastly modified by :
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// +---------------------------------------------------------------------------+
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// ! doneux ! Creation ! 06/17/02! %V%-1!
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// +---------------------------------------------------------------------------+
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#ifdef HAVE_CONFIG_H
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# include <config.h>
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#endif
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#include <OSD_Real2String.ixx>
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#include <stdio.h>
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#if defined(HAVE_STDLIB_H) || defined(WNT)
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# include <stdlib.h>
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#endif
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//=======================================================================
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//function : OSD_Real2String
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//purpose :
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//=======================================================================
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OSD_Real2String::OSD_Real2String():
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myReadDecimalPoint(0)
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{
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float F1 = (float ) 1.1 ;
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char str[5] ;
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sprintf(str,"%.1f",F1) ;
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// printf("%s\n",str) ;
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myLocalDecimalPoint = str[1] ;
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}
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//=======================================================================
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//function : RealToCString
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//purpose :
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//=======================================================================
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Standard_Boolean OSD_Real2String::RealToCString(const Standard_Real theReal,
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Standard_PCharacter& theString) const
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{
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char *p, *q ;
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if (sprintf(theString,"%.17e",theReal) <= 0)
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return Standard_False ;
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// Suppress "e+00" and unsignificant 0's
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if ((p = strchr(theString,'e'))) {
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if (!strcmp(p,"e+00"))
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*p = 0 ;
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for (q = p-1 ; *q == '0' ; q--) ;
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if (q != p-1) {
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if (*q != myLocalDecimalPoint) q++ ;
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while (*p)
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*q++ = *p++ ;
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*q = 0 ;
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}
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}
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return Standard_True ;
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}
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//=======================================================================
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//function : CStringToReal
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//purpose :
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//=======================================================================
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Standard_Boolean OSD_Real2String::CStringToReal(const Standard_CString theString,
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Standard_Real& theReal)
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{
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char *endptr ;
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if (! theString) return Standard_False;
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// Get the decimal point character in the string (if any)
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if (!myReadDecimalPoint) {
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if (strchr(theString, ',')) myReadDecimalPoint = ',';
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else if (strchr(theString, '.')) myReadDecimalPoint = '.';
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}
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const char *str = theString;
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if (myReadDecimalPoint) {
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if (myReadDecimalPoint != myLocalDecimalPoint) {
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const char * p;
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char buff[1024];
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// replace the decimal point by the local one
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if(myReadDecimalPoint != myLocalDecimalPoint &&
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(p = strchr(theString,myReadDecimalPoint))&& ((p-theString) < 1000) )
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{
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strncpy(buff, theString, 1000);
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buff[p-theString] = myLocalDecimalPoint;
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str = buff;
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}
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}
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}
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theReal = strtod(str,&endptr) ;
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if (*endptr)
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return Standard_False ;
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return Standard_True;
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}
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