[Issue 3967] bool opEquals() for structs instead of int opEquals()

[d-bugmail at puremagic.com]

http://d.puremagic.com/issues/show_bug.cgi?id=3967



--- Comment #4 from Lutger <lutger.blijdestijn at gmail.com> 2010-08-07 04:42:33 PDT ---
Something else is going on, the following does fail in line with your proposal:

import std.c.stdio: printf;

struct Foo {
   int data;

   int opEquals(ref const(Foo) other) const 
   {

       printf("A");
       return this.data == other.data;
   }
}
void main() {
   int r = Foo(5) == Foo(5);
}

output: Error: function test.Foo.opEquals type signature should be const
bool(ref const(Foo)) not const int(ref const(Foo) other)

Changing opEquals to return bool makes it compile correctly.

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