https://gcc.gnu.org/bugzilla/show_bug.cgi?id=116770
Bug ID: 116770
Summary: Diagnostic 'explicit qualification in declaration of'
could be clearer when explicit namespace qualifier
matches the open namespace
Product: gcc
Version: unknown
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: cjdb.ns at gmail dot com
Target Milestone: ---
```
namespace foo {
void f();
}
namespace foo {
void foo::f() {}
}
```
gives this diagnostic
```
error: explicit qualification in declaration of 'void foo::f()'
6 | void foo::f() {}
| ^~~
```
While technically accurate, the diagnostic could go a bit further and diagnose
that the author might have meant to define `foo::f`. Would it be possible to
add a note please?
```
error: explicit qualification in declaration of 'void foo::f()'
6 | void foo::f() {}
| ^~~
note: this 'void foo::f()` was found inside a 'namespace foo' block; did you
mean 'void f()`?
```
Alternatively, Clang diagnoses this as a warning instead of an error; perhaps
GCC could match this, either in text or in functionality.
```
warning: extra qualification on member 'f' [-Wextra-qualification]
6 | void foo::f() {}
| ^
```
