Re: non-const reference to temporary
WalterHoward@gmail.com wrote:
I have a disagreement with this "error". I'm constantly running into
this with g++, perhaps, hoping at some point the latest version has
changed this. For example, here's a function.
void WriteEverythingToFile( File& file, const std::string& text)
{
file.write(text);
}
The "File" can't be const in this case, for example, because in this
class, the write operation alters some data members.
Now say I just want to quickly write some stuff to a file and I don't
care about the file object persisting or leaving any extraneous
temporary variables lying around.
WriteEverythingToFile(File("AFileName.txt"), std::string("This stuff
goes into the file"));
g++ will tell me this is an error because I'm passing a non const
reference to a temporary (anonymous variable with no name).
First of all this isn't an error, except by someones overly broad
definition of error.
No. It's an error because the STANDARD -- ISO/IEC 14882:2003 -- says
it's an error, not because some guy on the g++ team though ti should be.
Deal with it.
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