Compiler Warning (level 3) C4522
Collapse the table of content
Expand the table of content
Important This document may not represent best practices for current development, links to downloads and other resources may no longer be valid. Current recommended version can be found here. ArchiveDisclaimer

Compiler Warning (level 3) C4522

Error Message

'class' : multiple assignment operators specified

The class has multiple assignment operators of a single type. This warning is informational; the constructors are callable in your program.

Use the warning pragma to suppress this warning.


The following sample generates C4522.

// C4522.cpp
// compile with: /EHsc /W3
#include <iostream>

using namespace std;
class A {
   A& operator=( A & o ) { cout << "A&" << endl; return *this; }
   A& operator=( const A &co ) { cout << "const A&" << endl; return *this; }   // C4522

int main() {
   A o1, o2;
   o2 = o1;
   const A o3;
   o1 = o3;
© 2015 Microsoft