Thread: why won't ifstream::fail() work?

hiya,

<source>
// presume that data.dat is not in my harddisk

ifstream fin("data.dat", ios::in);
if(fin.fail())
return false;
</source>

so ehm why doesn't it return false, it creates the file on my hard disk instead, what flag should i use in replace of ios::in?

many thanks,

did you try using .eof() or .good()? ex:

Code:

ifstream infile("input.txt",ios::in);

while(infile.good())
{.......
}

or

Code:

ifstream infile("input.txt", ios::in);

while(!infile.eof())
{....
}

well, i used ios::good now it works, but don't know why fail doesn't oh well, as long as it works it's okey,

thanks!