template<class T>
class bla {
public:
void doSpeak( T jadda ) {
cout << jadda << "\n";
}
}
//! Should instances of templates in the same file
bla<int> crapTemplateFix;
class speech : public bla<char> {
}
speech test;
Templates && Visual C++ 6.0
Author
Hey again,
I've had some weird problems with templates. I compile one project to a lib and another one to a plain exe file.
What I'm doing comes down to this:
[lib part]
[exe part]
In debug mode it compiles smoothly. However, when I want to optimize for speed in release mode I get unresolved externals.
I figured somehow he "optimizes" the crapTemplateFix out of my code. Work arounds / solutions anyone ?
[edited by - Divide on November 18, 2002 8:48:08 AM]
Where is craptemplatefix defined? It should be in a source file, not a header.
Workaround: buy VC++.Net. VC 6 has plenty of problems with templates.
Cédric
Workaround: buy VC++.Net. VC 6 has plenty of problems with templates.
Cédric
Author
quote:Original post by petewood
what are the messages?
libgui.lib(cdropdownlistbox.obj) : error LNK2001: unresolved external symbol "public: void __thiscall ai::gui::control::base::bcontainercontrol<class ai::gui::control::base::bcontrol *>::addControl(class ai::gui::control::base::bcontrol *)" (?addControl@?$bcontainercontrol@PAVbcontrol@base@control@gui@ai@@@base@control@gui@ai@@QAEXPAVbcontrol@2345@@Z)test.obj : error LNK2001: unresolved external symbol "public: void __thiscall ai::gui::control::base::bcontainercontrol<class ai::gui::control::base::bcontrol *>::addControl(class ai::gui::control::base::bcontrol *)" (?addControl@?$bcontainercontrol@PAVbcontrol@base@control@gui@ai@@@base@control@gui@ai@@QAEXPAVbcontrol@2345@@Z)libgui.lib(cpropertypanel.obj) : error LNK2001: unresolved external symbol "public: void __thiscall ai::gui::control::base::bcontainercontrol<class ai::gui::control::base::bcontrol *>::addControl(class ai::gui::control::base::bcontrol *)" (?addControl@?$bcontainercontrol@PAVbcontrol@base@control@gui@ai@@@base@control@gui@ai@@QAEXPAVbcontrol@2345@@Z)libgui.lib(ctabpanel.obj) : error LNK2001: unresolved external symbol "public: void __thiscall ai::gui::control::base::bcontainercontrol<class ai::gui::control::base::bcontrol *>::addControl(class ai::gui::control::base::bcontrol *)" (?addControl@?$bcontainercontrol@PAVbcontrol@base@control@gui@ai@@@base@control@gui@ai@@QAEXPAVbcontrol@2345@@Z)libgui.lib(ccheckboxgroup.obj) : error LNK2001: unresolved external symbol "public: void __thiscall ai::gui::control::base::bcontainercontrol<class ai::gui::control::base::bcontrol *>::addControl(class ai::gui::control::base::bcontrol *)" (?addControl@?$bcontainercontrol@PAVbcontrol@base@control@gui@ai@@@base@control@gui@ai@@QAEXPAVbcontrol@2345@@Z)test.obj : error LNK2001: unresolved external symbol "public: void __thiscall ai::gui::control::base::bcontainercontrol<class ai::gui::control::output::clabel *>::addControl(class ai::gui::control::output::clabel *)" (?addControl@?$bcontainercontrol@PAVclabel@output@control@gui@ai@@@base@control@gui@ai@@QAEXPAVclabel@output@345@@Z)../debug/test.exe : fatal error LNK1120: 2 unresolved externals quote:Original post by cedricl
Where is craptemplatefix defined? It should be in a source file, not a header.
Cédric
It has been defined inside a source file.
why do you need that specialisation in the header? that would be a global variable which you shouldn''t define in a header.
that''s a pretty expensive workaround. what about using gcc for free?
quote:Original post by cedricl
Workaround: buy VC++.Net. VC 6 has plenty of problems with templates.
that''s a pretty expensive workaround. what about using gcc for free?
Author
quote:
that''s a pretty expensive workaround. what about using gcc for free?
Compiles just fine under gcc ^_^
But, I want a work around using VC++, since the company prefers that
This topic is closed to new replies.
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