[Issue 12211] Assignment expression is not an lvalue

[d-bugmail at puremagic.com]

https://d.puremagic.com/issues/show_bug.cgi?id=12211



--- Comment #1 from Kenji Hara <k.hara.pg at gmail.com> 2014-02-20 21:07:40 PST ---
In C++:

#include <stdio.h>
void foo(int& x)
{
    printf("foo: x = %d\n", x);
    x = 3;
}
int main()
{
    int a = 0;
    printf("a = %d\n", a);
    foo(a += 1);
    printf("a = %d\n", a);
    foo(a = 2);
    printf("a = %d\n", a);
}

Prints:
---
a = 0
foo: x = 1
a = 3
foo: x = 2
a = 3

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