Submit My Question - Recent Questions - Recent Answer
Msdn Tech >> Visual C++ >> Visual C++ General

changes of operator overloading in vc++2005

in vc++2003, managed c++ operator overloading of value type use the CLS function, such as op_Addition.

but, in vc++2005, it seems that operator overloading of value type is changed back to the traditional way. it uses key word operator, such as operator+.

i tried vc++2003 way in 2005 and i got the error below:
Error 1 error C3195: 'op_Addition' : is reserved and cannot be used as a member of a ref class or value type. CLR operators must be defined using the 'operator' keyword
I don't know if i am right at this point. so, if anyone got any idea, please tell me. thx.

[590 byte] By [Riekey] at [2007-12-16]
«« Has any one gone through Document outline tab in Visual Basic Express edition Beta 2
»» How to get the Application object of the current executable
# 1
Riekey, in C++/CLI, you use the standard C++ operator overloading:

ref struct R{
R(int x):i(x){}

int i;
static R^ operator+(R^ lhs, R^ rhs){
return gcnew R(lhs->i + rhs->i);
}
};

int main(){
R^ a = gcnew R(10);
R^ b = gcnew R(20);
R^ c = a+b;
System::Console::WriteLine(c->i); //30
}

When the operator above is output into metadata, it goes out as op_Addition. But you declare it in C++ using the standard C++ operator overloading.

AndyRich at 2007-8-21 > top of Msdn Tech,Visual C++,Visual C++ General...
Visual C++ General

Visual C++ Hot Topic

Visual C++

Java / MSDN / Linux Tech / PHP Tech / MSDN DotNet / MSDN TECH / Health Library / Programmers Tech / visual basic Tech / Developer Tech / Ipod faqs / Msdn China Tech

Site Classified