There is a fairly arbitrary (unless I missed an important argument)
limitation on initialization clause for if statements.

- I have that
  if (auto it = vec.begin(); it != vec.end()) {

- I want this
  if (auto it = vec.begin() /*and*/ auto itt = ++vec.begin(); it !=
vec.end() && it != itt) {

So you end up using one of the workarounds, which are somewhat hacky imo :/

I'd like to release that restriction and have for example
  if ({
    auto it = vec.begin();
    auto itt = ++vec.begin();
  }; it != vec.end() && it != itt) {

which can be desugared (desugarified ?) to e.g.
  {
    auto it = vec.begin();
    auto itt = vec.begin();
    if (it != vec.end()) {
    }
  }

Colleague pointed me to a GCC expression statements extension which ?maybe?
makes `if ({` ambiguous to parse, so I would have to look into that too…

Is there any current proposal that aims to lift that restriction ?
Cheers.

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