Re: Evaluation order of index expressions

[kinke via Digitalmars-d]

On Monday, 25 May 2015 at 17:21:05 UTC, Johannes Pfau wrote:
import std.stdio;
void main()
{
    int a = 0;
    int bar()
    {
        a++;
        return a;
    }
    a += bar(); // => a = a + bar()
    writeln(a);
}
DMD: 2
GDC: 1

which one is correct?

So what about my previous example?

int b = 0;
((++b *= 5) *= 2) += ++b * (b -= 6);

DMD 2.067.1: 60, latest LDC: 65, GDC: ?

This divergence probably doesn't have anything to do with the 
evaluation order, which seems to be identical (LTR), but rather 
how the lhs expression is treated (a double-nature as nested 
lvalue to be assigned to and rvalue result of a binAssign 
expression). For more context, see 
https://github.com/ldc-developers/ldc/pull/873.