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reading & writing a file [message #32655]

Tue, 31 May 2011 17:47

silverx
Messages: 62
Registered: March 2011

Member

I am trying to read a file, once I get that done, I will want to be able to write a file out. Not only read/write a full line at one time, but will want to be able to read/write a binary file 1 byte at a time.

Are their any examples of reading a file, and writing a file?

It doesn't seem to find ifstream.

Any help with this, maybe other includes?

The errors are as follows:

C:\MyApps\readme\main.cpp(13) : error C2065: 'ifstream' : undeclared identifier
C:\MyApps\readme\main.cpp(13) : error C2065: 'file' : undeclared identifier
C:\MyApps\readme\main.cpp(14) : error C2448: 'Readini' : function-style initializer appears to be a function definition
C:\MyApps\readme\main.cpp(24) : error C2065: 'ifstream' : undeclared identifier
C:\MyApps\readme\main.cpp(24) : error C2146: syntax error : missing ';' before identifier 'inifile'
C:\MyApps\readme\main.cpp(24) : error C3861: 'inifile': identifier not found
C:\MyApps\readme\main.cpp(27) : error C2513: 'Upp::String' : no variable declared before '='
C:\MyApps\readme\main.cpp(27) : error C2065: 'inifile' : undeclared identifier
C:\MyApps\readme\main.cpp(28) : error C2065: 'inifile' : undeclared identifier
C:\MyApps\readme\main.cpp(28) : error C2228: left of '.eof' must have class/struct/union
type is ''unknown-type''
C:\MyApps\readme\main.cpp(27) : error C3861: 'Readini': identifier not found
C:\MyApps\readme\main.cpp(29) : error C2143: syntax error : missing ';' before '('
C:\MyApps\readme\main.cpp(29) : error C2059: syntax error : ')'
C:\MyApps\readme\main.cpp(32) : error C2065: 'inifile' : undeclared identifier
C:\MyApps\readme\main.cpp(32) : error C2228: left of '.close' must have class/struct/union
type is ''unknown-type''
readme: 1 file(s) built in (0:02.05), 2059 msecs / file, duration = 2106 msecs, parallelization 0%

There were errors. (0:02.79)

The code is as follows, right now just a blank layout, is all I have. The code I got from a C++ book so I just copied what they had for it:

#include "readme.h"

using namespace Upp;

#include <iostream>
#include <string>
#include <fstream>

String Readini(ifstream &file)
{
char buf[300]; // up to 300 bytes per line of input
file.getline(&(buf[0], 300);
return String(buf);
}

int DoLoadFunctions()
{
String file = "learn.ini";

ifstream inifile(file);
while (1)
{
String inline = Readini(inifile);
if (inifile.eof() == true)
break();

}
inifile.close();

PromptOK("This is a test");

return 0;

}

readme::readme()
{
// added to make window sizeable and zoomable
TopWindow::Sizeable(true);
TopWindow::Zoomable(true);

CtrlLayout(*this, "Read a File on Start up");
}

GUI_APP_MAIN
{

int lfreturn = DoLoadFunctions();

if (lfreturn == 0)
{
readme().Run();
}
else
{
// close it

}

}

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