https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108744
Bug ID: 108744
Summary: error message when trying to use structured bindings
in static member declaration could be cleaner
Product: gcc
Version: 13.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: barry.revzin at gmail dot com
Target Milestone: ---
Consider:
struct X {
int i, j;
};
struct C {
static auto [a, b] = X{1, 2};
};
This is ill-formed, but the error is currently:
<source>:6:17: error: expected unqualified-id before '[' token
6 | static auto [a, b] = X{1, 2};
| ^
clang, in contrast, says:
<source>:6:17: error: decomposition declaration not permitted in this context
static auto [a, b] = X{1, 2};
^~~~~~
Which is a lot clearer. I think ideally the error states explicitly that
structured bindings can't be used in static data member declarations.
