Thus spake Paul Vixie:
> >
> > The RAII technique goes like this:
> >
> > struct ReadFP : boost::non_copyable
> > {
> > ReadFP(std::string& fname)
> > {
> > d_fp = fopen(fname.c_str(), "r")
> > if(!d_fd)
> > throw runtime_error("Opening file "+fname+": "+strerror(errno);
> > }
> > ~ReadFD()
> > {
> > fclose(d_fp);
> > }
> > FILE* d_fp;
> > };
> >
> > Written like this, you'll never leak an fd 'ever'. The 'boost::non_copyable'
> > makes sure no one can copy this struct, which would complicate things. Use:
NB: You could also make it non-copyable without boost by deleting the
copy ctor:
ReadFP(const ReadFP&) = delete;
That's the canonical way with C++11 and later.
I'm in favor of using C++ for nmh should I ever dig myself out of the
hole I'm in and have time to contribute.
--
J.
--
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