"++" vs "+=" on function parameter

[Timon Gehr]

On 3/8/26 03:28, claptrap wrote:
> ```
> module test;
> import std.stdio;
> 
> void foo(int pos)
> {
>      writeln("inside foo : ",pos);
> }
> 
> void main()
> {
>      writeln("++");
>      int p = 0;
>      foo(p++);
>      writeln("after foo : ",p);
> 
>      writeln("+=1");
>      p = 0;
>      foo(p+=1);
>      writeln("after foo : ",p);
> }
> ```
> 
> prints:
> 
> ++
> inside foo : 0
> after foo : 1
> +=1
> inside foo : 1
> after foo : 1
> 
> seems inconsistent to me, probably stuck with it now though I guess?
> ...


`++p` and `p++` are different. If you want to match `p+=1` you should go 
with `++p`.