Comparing two instances of the following struct I receive an error struct MyStruct1 MyStruct1 const MyStruct2 amp my struct 2 const int an int -1 my struct 2 my struct 2 an int an int std string toString const MyStruct2 my struct 2 int an int The error is error C2678 binary no operator found which takes a left-hand operand of type myproj MyStruct1 or there is no acceptable conversion Why

No == operator found while comparing structs in C++

In C++, structs do not have a comparison operator generated by default. You need to write your own:

bool operator==(const MyStruct1& lhs, const MyStruct1& rhs)
{
    return /* your comparison code goes here */
}

~ Answered on 2011-04-21 06:25:17