CODEWITHSUNDEEP
c++oopvisual-c++operator-overloading
KosTTTT
KosTTTT

Reputation: 43

overloaded operator new and operator delete with three arguments

I have the following piece of code

void* Class1::operator new(size_t nSize, LPCSTR lpszFileName, int nLine)
{
    return ::operator new[](nSize,lpszFileName,nLine); 
} 
void Class1::operator delete(void *p, LPCSTR lpszFileName, int nLine)
{ 
    ::operator delete[] (p,lpszFileName,nLine); 
}

I do not understand ::operator new[](nSize,lpszFileName,nLine) and delete[] (p,lpszFileName,nLine). There is a global scope operator "::" So it is supposed to call C++ operators, but there are no such overloads in C++ specification. Could you explain why is this?

Upvotes: 2

Views: 88

Answers (1)

gsamaras
gsamaras

Reputation: 73366

As Holt mentioned, there is a new operator defined at global scope, like:

void* operator new(size_t, LPCSTR, int);

and is resolved via the scope resolution operator. Same goes for the delete case.

Upvotes: 1

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