tree 76112f3aa985e9a1a16c99b5137c55b7cd7d5b6a
parent ee4e8197fa67dd1ed6e9470e00708e7feeaacd97
author Aaron Ballman <aaron@aaronballman.com> 1743678810 -0400
committer GitHub <noreply@github.com> 1743678810 -0400
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No longer diagnose __auto_type as the auto extension (#134129)

Given:

  __auto_type x = 12;
  decltype(auto) y = 12;

-Wc++98-compat would diagnose both x and y with:

'auto' type specifier is incompatible with C++98

This patch silences the diagnostic in those cases. decltype(auto) is
still diagnosed with:

'decltype(auto)' type specifier is incompatible with C++ standards
before C++14

as expected but no longer produces the extraneous diagnostic about use
of 'auto'.

Fixes #47900