GCC-3 additions - related question
Sun Oct 14 13:32:00 GMT 2001
--- Robert Collins <firstname.lastname@example.org> wrote: >
> ----- Original Message -----
> From: "Danny Smith" <email@example.com>
> > Lately, I've been hearing this with STL code:
> > "This compile well using gcc! Why it not MS!"
> > Thats what I want -- the first part of that anyway.
> Danny, it sounds like you might know the answer to this: are there known
> issues for building native code using the cygwin gcc with C++ templates?
> Specifically, I've asked Chris on the developer list about using
> templates for some stuff (iterators particularly are getting real old
> for me), see
> for the thread.
I've built STLPort, Bench++ (Stepanov benchmarking suite) and some of the
Boost package with mingw 2.95.3 and gcc's ability to build template code is
not a problem compared with what I've read for other windows compilers.
The issue is with efficiency. Efficiency of writing generic code may be
enhanced by templates. But... Debugging template code is a real pain --
stange errors with instantiatiation of templates have to be tracked through
a maze of headers. And there is a runtime performance hit. I don't have
the Bench++ results handy but there was a significant penalty for using
generic template code compared to C code. I expect gcc-3.0 to be better,
at least as far as speed of compiled code. Speed of compilation, however,
is a problem when your testing.
I would agree with Corinna.
> Apparently Corinna had some reservations (Corinna - Are you still
> catching up on mail? :})...
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