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CppLinkingError

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(C++) Linking error

An error found during  ?linking or run-time.

Mostly, this means that in the header files, you've give the declaration of a function, but nowhere given the function body.

The code below has the function definition commented out, resulting in a linking error.

include <iostream>


//Declaration of doSomething();
void doSomething();
int main()
{
  doSomething();
  return 0;
}
//Definition of the function
//Removing this part returns in a linking error
/* //Commented this function out to generate a linker error.
void doSomething()
{
  std::cout << "Hello world" << std::endl;
}
/

In C++ Builder the error message will be:

[Linker Error] Unresolved external 'doSomething()' 
referenced from C:\PROGRAM FILES\BORLAND\CBUILDER6\PROJECTS\UNIT1.OBJ

Other errors

• C++ compile errors
• C++ linking errors
• C++ runtime errors
• C++ Builder compile errors
• C++ Builder linking errors
• C++ Builder run-time errors
• C++ Builder misc errors

Topic links

• ::, scope operator
• <<, stream out operator
• #include
• const
• cout
• endl
• #include
• iostream
• main
• return
• scope operator, ::
• std
• stream out operator, <<
• vector

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