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can i ask someone what is external file name for I/O Stream???
ASKER
Just like i have a program like this:
#include <fstream>
#include <iostream.h>
#include <stdlib.h>
int main()
{
using namespace std;
ifstream in_stream;
ofstream out_stream;
in_stream.open("infile.dat ");
out_stream.open("outfile.d at");
int first, second, third;
in_stream >> first >> second>> third;
out_stream <<"The sum of the first 3\n"
<<"numbers in infile.dat\n"
<<"is" <<(first+second+third)
<<endl;
in_stream.close( );
out_stream.close( );
system("PAUSE");
return 0;
}
So where is my infile.dat located????
#include <fstream>
#include <iostream.h>
#include <stdlib.h>
int main()
{
using namespace std;
ifstream in_stream;
ofstream out_stream;
in_stream.open("infile.dat
out_stream.open("outfile.d
int first, second, third;
in_stream >> first >> second>> third;
out_stream <<"The sum of the first 3\n"
<<"numbers in infile.dat\n"
<<"is" <<(first+second+third)
<<endl;
in_stream.close( );
out_stream.close( );
system("PAUSE");
return 0;
}
So where is my infile.dat located????
>>So where is my infile.dat located????
This depends no your implementation, OS, and IDE.
If you want to be sure of it's location, you should give it a fully qualified name (full path).
Without a fully qualified name, it could be located in one of the follownig directories:
The path of your executable
The path were you launched your executable
The path of your current directory when file is opened
FYI:
You should not use ifstream.h and iostream.h
They're not part of the C++ standard, and therefore they're not portable and will not compile on compilers like VC++ 7.x
Use <iostream> and <fstream> instead, which are part of the C++ standard.
This depends no your implementation, OS, and IDE.
If you want to be sure of it's location, you should give it a fully qualified name (full path).
Without a fully qualified name, it could be located in one of the follownig directories:
The path of your executable
The path were you launched your executable
The path of your current directory when file is opened
FYI:
You should not use ifstream.h and iostream.h
They're not part of the C++ standard, and therefore they're not portable and will not compile on compilers like VC++ 7.x
Use <iostream> and <fstream> instead, which are part of the C++ standard.
have u wriiten the program ur self or gotten it from somewhere
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ASKER
I just want to give an example and get that example from a book. THanks for your comment.
> >can i ask someone what is external file name for I/O Stream???
What do you mean by external file name?
David Maisonave :-)
Cheers!