Today's g++/C++ funny: ofstream's open constructor

Samat Jain — Thu, 07 Jul 2005 22:43:00 +0000

So, I’m working on a project, and have some code like this:

string blah="somefile"; ofstream fp;

fp.open(blah);

And it doesn’t work. Apparently, what you need to do when using ofstream’s open method:

fp.open(blah.c_str());

Yes, it looks like what it is. Apparently g++’s iostreams library (gcc 3.2) does not support things that have been part of the C++ standard for years–like C++ STL strings… You have to convert back to a C string.

Last I checked this was 2005, not 1999. You’d have thought someone would have overloaded this by now… I’ve only checked this in g++; will check with Intel’s C++ compiler and Microsoft Visual Studio later, though I’m not sure whether to expect better. What didn’t help me to find this out, of course, is g++’s totally wonderful (sarcasm) compiler error messages…

Topic:

Programming

C++