5da1234bb7
PR c++/86329 reports that the C++ frontend can offer bogus suggestions like:
#include <string>
int compare()
{
return __n1 - __n2;
}
suggested.cc: In function 'int compare()':
suggested.cc:5:10: error: '__n1' was not declared in this scope
return __n1 - __n2;
^~~~
suggested.cc:5:10: note: suggested alternative: '._61'
return __n1 - __n2;
^~~~
._61
suggested.cc:5:17: error: '__n2' was not declared in this scope
return __n1 - __n2;
^~~~
suggested.cc:5:17: note: suggested alternative: '._72'
return __n1 - __n2;
^~~~
._72
The dot-prefixed names are an implementation detail of how we implement
anonymous enums found in the header files, generated via
anon_aggrname_format in make_anon_name.
This patch uses anon_aggrname_p to filter them out when considering
which names to suggest.
gcc/cp/ChangeLog:
PR c++/86329
* name-lookup.c (consider_binding_level): Filter out names that
match anon_aggrname_p.
gcc/testsuite/ChangeLog:
PR c++/86329
* g++.dg/lookup/pr86329.C: New test.
From-SVN: r262199
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