if (int bar = .. bug or some thing

[Adam D. Ruppe]

On Tuesday, 31 October 2017 at 04:08:12 UTC, Joel wrote:
> 	if (int bar = foo() != 0) {

Not a bug, but I do think it is an iffy design.

That is more like:

int bar;
if(bar = (foo() != 0))

so the foo != 0 is evaluated first, which ends up being boolean 
true or false, then THAT true/false value is converted to int and 
assigned to bar, hence it becomes 0 or 1.


You can't really combine declaration and non-trivial comparison 
in a single statement.