seemingly simple ofstream problem please help

[Tom Johnson]

Hi all, I cant believe that Im stuck on such simple code, but I am
so...
Im trying to open a text file for writing but can never get the file
to initially open. Heres what Im having trouble with.

-----------------------------------------------
#include <iostream.h>
#include <fstream.h>

void main()
{
ofstream file ("C:\inventory\example.txt")
if (!file.is_open)cout<<"not open";
}
------------------------------------------------
Ive tried ios:ut, ios::app, etc... but I just keep getting "not
open" in the console. Its been 3 years since I learned and used
Visual C++ and I just picked it up again yesterday, so am I forgetting
something? Any help would be greatly appreciated. Thanks!
Tom Johnson

 

[John Harrison]

Hi all, I cant believe that Im stuck on such simple code, but I am
so...
Im trying to open a text file for writing but can never get the file
to initially open. Heres what Im having trouble with.

-----------------------------------------------
#include <iostream.h>
#include <fstream.h>

void main()
{
ofstream file ("C:\inventory\example.txt")

ofstream file ("C:\\inventory\\example.txt")

Easy mistake to make.

john

 

[John Harrison]

ofstream file ("C:\\inventory\\example.txt")

Easy mistake to make.

john

Incidentally there are several other things wrong with your code, I'm sure
it because you've been away for three years.

1) There are no header files called <fstream.h> and <iostream.h>, the
correct header files are <iostream> and <fstream>. The .h versions are
probably implementing a non-standard legacy version of the iostream library
(I'm taking a wild guess at your compiler being VC++). You should switch to
the standard library.

2) ofstream, cout and similar standard names are in the std namespace.

std:fstream file ("C:\\inventory\\example.txt");

std::cout << "not open";

3) main returns an int, not void.

john

 

[red floyd]

Hi all, I cant believe that Im stuck on such simple code, but I am
so...
Im trying to open a text file for writing but can never get the file
to initially open. Heres what Im having trouble with.

-----------------------------------------------
#include <iostream.h>
#include <fstream.h>

void main()
{
ofstream file ("C:\inventory\example.txt")
if (!file.is_open)cout<<"not open";
}
------------------------------------------------
Ive tried ios:ut, ios::app, etc... but I just keep getting "not
open" in the console. Its been 3 years since I learned and used
Visual C++ and I just picked it up again yesterday, so am I forgetting
something? Any help would be greatly appreciated. Thanks!
Tom Johnson

#include <iostream>
#include <fstream>

int main()
{
std:fstream file ("C:\\inventory\\example.txt");
if (!file.is_open()) std::cout << "not open" << std::endl;
return 0;
}

 

[red floyd]

Tom Johnson wrote:
[redacted]


#include <iostream>
#include <fstream>

int main()
{
std:fstream file ("C:\\inventory\\example.txt");
if (!file.is_open()) std::cout << "not open" << std::endl;
return 0;
}

Actually, that second line in main() should just read:

if (!file) std::cout << ...