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This article introduces the knowledge of "what is the method of compiling templates?". In the operation of actual cases, many people will encounter such a dilemma, so let the editor lead you to learn how to deal with these situations. I hope you can read it carefully and be able to achieve something!

After the machine version linux 2.4.30; Gmail + 3.3.4 g template + compiles the template class, "undefined reference to `int f (long&)'" appears when connecting. Document code structure a.h-definition template # ifndef _ _ Achievement

# define _ _ A__H

Template

Int f (T & s)

# endif a.cpp-implementation template # include "a.h"

Template

Int f (T & s)

{

Return 0

} main.cpp-call template method to process # include "a.h"

Int main ()

{

Long a

F (a)

Return 0

} this problem, caused by gaming + "imperfect", can be dealt with as follows. Put the content of a.cpp into a.h, remove a.cpp, and solve the problem of compiling and connecting 2. If A.H and a.cpp are also needed, then in main.cpp, export-Gmail + is not expected to support

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