On Thursday, 29 January 2015 at 17:48:04 UTC, rumbu wrote:
bool opEquals(Object obj, int value)
{
    //do something to compare them
    return false;
}


void main(string[] args)
{
    Object obj;
    if (obj == 12) {}
//ERROR function object.Object.opEquals (Object o) is not callable using argument types (int)
}

According to paragraph (2) - http://dlang.org/operatoroverloading.html#eqcmp), the compiler must try obj.opEquals(12) and 12.opEquals(obj) but this is not happening.

Is there any other way to overload the equality operator? (except overriding opEquals in each class intended to be compared with an integer)

UFCS is not used when operators are involved. I think this is intentional.

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