CODEWITHSUNDEEP
c++
johnnily
johnnily

Reputation: 153

operator overloading error C++

I have a inline operator overloading in cpp file. My understanding is the inline function should also put in the header file with the body of function.

but when i do that. the error come out which is redefinition of "operator =="

could you explain why is the error like that. and also, could anyone explain what sorts of content should keep in the header file.? 

inline bool operator ==(Duration& d1, Duration& d2)
{

   return d1.getSecond() == d2.getSecond();
}

Upvotes: 0

Views: 132

Answers (2)

Mark Ransom
Mark Ransom

Reputation: 308186

Inline functions need to go in the header, not the source. Otherwise they won't be available in the other sources where you try to call them.

Having a second copy in the source is indeed a duplicate.

Upvotes: 2

anio
anio

Reputation: 9161

You can't define a function twice. Declare it in the header and define it in the cpp - OR - just define it in the header and leave it out of the cpp completely.

Upvotes: 3

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