Q: how to get the error from fstream <<

[zhou]

Hi there,

I got an error when writing to a file via ofstream. Is there a way to get detailed reason for the error?
iosstate only has bad and good bits, no good enough to tell me what went wrong.

ofstream fs;
fs.open("aaa");
if ( fs << ....) {
// error
}

Thanks.

Yan

 

[John Harrison]

Hi there,

I got an error when writing to a file via ofstream. Is there a way to get detailed reason for the error?
iosstate only has bad and good bits, no good enough to tell me what went wrong.

ofstream fs;
fs.open("aaa");
if ( fs << ....) {
// error
}

Thanks.

Yan

No, there is no portable way to get a detailed reason for the error.

john