incomplete edit in [exec.when.all] p5

[ericniebler]

[exec.when.all] has the following:

5. Let make-when-all-env be the following exposition-only function template:

   template<class Env>
   constexpr auto make-when-all-env(inplace_stop_source& stop_src,     // exposition only
                                    Env&& env) noexcept {
     return see below;
   }

Returns an object e such that

• 5.1 decltype(e) models queryable, and

• 5.2 e.query(get_stop_token) is expression-equivalent to state.stop-src.get_token(), and

• 5.3 given a query object q with type other than cv get_stop_token_t and whose type
  satisfies forwarding-​query, e.query(q) is expression-equivalent to get_env(rcvr).query(q).

the problem is the reference to get_env(rcvr) in 5.3. there is no rcvr here. it should be referring instead to the env parameter.

Proposed Resolution

Change [exec.when.all] p5.3 to read as follows:

• 5.3 given a query object q with type other than cv get_stop_token_t and whose type
  satisfies forwarding-​query, e.query(q) is expression-equivalent to env.query(q).