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SOLVED: How to call static library function in a C++ class?

Abhijeet srivastava:

I have class whose header file is defined as:

namespace mip {
    class CustomStatic {
            static const char* GetVersion();

And class file is defined as:

#include "CustomStatic.h"

namespace mip {
    static const char* GetVersion() {
        return "hello";

I am accessing this static function from my main class

#include "CustomStatic.h"

#include <iostream>

using std::cout;
using mip::CustomStatic;

int main() {
    const char *msg = mip::CustomStatic::GetVersion();
    cout << "Version " << msg << "\n";

When I try to compile it using-

g++ -std=c++11 -I CustomStatic.h  MainApp.cpp CustomStatic.cpp

I am getting error as:

Undefined symbols for architecture x86_64:
"mip::CustomStatic::GetVersion()", referenced from: _main in MainApp-feb286.o ld: symbol(s) not found for architecture x86_64 clang: error: linker command failed with exit code 1 (use -v to see invocation)

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