dev-cpp-users

[Dev-C++] double no double query

[Daniel G. <sp...@ho...>]

if you are using the same object to write multiple variables into the text 
document try destroying the object then re-creating it before you do the 
next one.

It's a bit like the following.

e.g.
[code]
/**
	    Object with local scope
	    Notice how the strstream object is created with local scope. Local 
scope
	    ensures the object is destroyed, then created the next time it
	    is needed. This has the effect of making sure that no previous
	    values will be carried forward to the next usage of the object.
	    */
		{  // Display X Resolution
		   strstream StrstreamObject;
	       StrstreamObject << "XResolution: " << m_nXResolution << '\0';
	       pListbox->AddString(StrstreamObject.str());
	       StrstreamObject.rdbuf()->freeze(0);
		}

		{  // Now for the Y resolution
		   strstream StrstreamObject;
	       StrstreamObject << "YResolution: " << m_nYResolution << '\0';
	       pListbox->AddString(StrstreamObject.str());
	       StrstreamObject.rdbuf()->freeze(0);
		}

[/code]

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Re: [Dev-C++] double no double query

[Carlos d. M. <cg...@wo...>]

No, the code posted is all the source code between #defines, main() varia=
ble declaration and
return. I compiled it just for confirm if there could be something about =
what you say.
If I could get the iostream files from someone for which it works fine, p=
erhaps I could
compare them, (I read that a header in some compiler (mingw or borland5.5=
free) has an errata,
it can be the problem, but I don't understand, it seems nobody else has i=
t).
It happens either with #include<header.h> and with #include<header>;using=
 namespace std;.
With iostream from mingw1.1 and the previous.(I have both: include/g++-3 =
=66rom one and /G++
=66rom the other)
With values of different size, small and great.
This is the whole code:

#include <iostream.h>
#include <fstream.h>
#include <string.h>
#include <stdio.h>
#include <stdlib.h>

int main()
{
double tal =3D 575756.76884;
fstream fileA, fileB;
FILE *outFile, *inFile;
char intoFile[255], outtoFile[255];
double test, recep;
char recipe, *mediate;
int size;

fileA.open("marar.txt", ios::out);
fileA << tal;
fileA.close();
fileB.open("marar.txt", ios::in);
fileB >> tal;
cout << tal;
fileB.close();

      system("PAUSE");
      return 0;
}


Daniel Glenfield escribi=F3:

> if you are using the same object to write multiple variables into the t=
ext
> document try destroying the object then re-creating it before you do th=
e
> next one.
>
> It's a bit like the following.
>
> e.g.
> [code]
> /**
>             Object with local scope
>             Notice how the strstream object is created with local scope=
. Local
> scope
>             ensures the object is destroyed, then created the next time=
 it
>             is needed. This has the effect of making sure that no previ=
ous
>             values will be carried forward to the next usage of the obj=
ect.
>             */
>                 {  // Display X Resolution
>                    strstream StrstreamObject;
>                StrstreamObject << "XResolution: " << m_nXResolution << =
'\0';
>                pListbox->AddString(StrstreamObject.str());
>                StrstreamObject.rdbuf()->freeze(0);
>                 }
>
>                 {  // Now for the Y resolution
>                    strstream StrstreamObject;
>                StrstreamObject << "YResolution: " << m_nYResolution << =
'\0';
>                pListbox->AddString(StrstreamObject.str());
>                StrstreamObject.rdbuf()->freeze(0);
>                 }
>
> [/code]
>
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