template

[dearvivekkumar]

Hi
Is it's possible to create a class specific template function function in C++, some thing the code below. I wants to achieve something like below.
Please guide me.

class SomeClass {
public:
    template<typename T>
    void someFun(T in);
}

template<typename T>
void SomeClass::someFun(T in) {
    std::cout << in << endl;
}

Thanks!

[Bazzy]

Yes, that's almost right. You need to fix a bit the definition:

template<typename T>
void SomeClass::someFun<T>(T in) { // there
    std::cout << in << endl;
}

- And of course you'll need to keep everything in header files -

[dearvivekkumar]

Thanks Bazzy for your suggestion but i'm getting error which I ve mentioned below. If you don't mind please guide me regarding this.

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#include <iostream> class SomeClass { public: template<typename T> void someFun(T in); } template<typename T> void SomeClass::someFun<T>(T in) { // there std::cout << in << endl; } int _tmain(int argc, _TCHAR* argv[]) { return 0; } and m getting error as 1

1>Deleting intermediate and output files for project 'hello', configuration 'Debug|Win32' 1>Compiling... 1>stdafx.cpp 1>Compiling... 1>hello.cpp 1>c:\documents and settings\vivek.kumar\desktop\hello\hello.cpp(14) : error C2628: 'SomeClass' followed by 'void' is illegal (did you forget a ';'?) 1>c:\documents and settings\vivek.kumar\desktop\hello\hello.cpp(14) : error C2065: 'T' : undeclared identifier 1>c:\documents and settings\vivek.kumar\desktop\hello\hello.cpp(14) : error C2146: syntax error : missing ')' before identifier 'in' 1>c:\documents and settings\vivek.kumar\desktop\hello\hello.cpp(14) : error C2761: 'void SomeClass::someFun(T)' : member function redeclaration not allowed 1>c:\documents and settings\vivek.kumar\desktop\hello\hello.cpp(14) : error C2059: syntax error : ')' 1>c:\documents and settings\vivek.kumar\desktop\hello\hello.cpp(14) : error C2143: syntax error : missing ';' before '{' 1>c:\documents and settings\vivek.kumar\desktop\hello\hello.cpp(14) : error C2447: '{' : missing function header (old-style formal list?) 1>Build log was saved at "file://c:\Documents and Settings\vivek.kumar\Desktop\hello\Debug\BuildLog.htm" 1>hello - 7 error(s), 0 warning(s) ========== Rebuild All: 0 succeeded, 1 failed, 0 skipped ==========

[Bazzy]

You forgot the semicolon after the class body

[dearvivekkumar]

Hi Bazzy thanks again,

Sorry for that silly error, But now I'm getting a new error as

error C2768: 'SomeClass::someFun' : illegal use of explicit template arguments

[Bazzy]

Oh, yes. Your first code was right, just with the semicolon

[dearvivekkumar]

@Bazzy

Thanks alot for giving me your time and helping me out.