Re: Q about g++-3 and template instantiation

[Ilya Martynov <m_ilya@agava.com>]

DEK> Ilya, thanks VERY MUCH.  This solved my problem in a flash.  My
DEK> application (38 thousand lines, compared to the 6 lines of my
DEK> test-file) now compiles and links properly in g++-3, and, with a
DEK> preprocessor switch, in g++-2 as well.  In case other folks are
DEK> interested, below is how I now do it (sorry that I test for __GNUC__;
DEK> this code is meant to work for many other compilers as well) ...

DEK>   #if defined(__GNUC__)

DEK>   #if __GNUC__ == 3

DEK>   void
DEK>   std::reverse(std::vector<double>::iterator, std::vector<double>::iterator);

DEK>   #else

DEK>   template void
DEK>   std::reverse(std::vector<double>::iterator, std::vector<double>::iterator);

DEK>   #endif

DEK>   #endif

Why use 'preprocessor switch'? AFAIK g++-2 should hanlde correct
syntax too (without keyword 'template'). At least version 2.95.3 does
compiles your example code with 'template' removed. Did you tried to
compile your application with g++-2 with 'template' removed where it
should be removed? If it will not compile and link I will be
surprised.

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