[PATCH] D66100: Add __has_builtin support for builtin function-like type traits.
Richard Smith - zygoloid via Phabricator via cfe-commits
cfe-commits at lists.llvm.org
Mon Aug 12 11:26:48 PDT 2019
rsmith created this revision.
rsmith added a reviewer: aaron.ballman.
Herald added subscribers: cfe-commits, kristina, jfb.
Herald added a project: clang.
Previously __has_builtin(__builtin_*) would return false for
__builtin_*s that we modeled as keywords rather than as functions
(because they take type arguments). With this patch, all builtins
that are called with function-call-like syntax return true from
__has_builtin (covering __builtin_* and also the __is_* and __has_* type
traits and the handful of similar builtins without such a prefix).
Update the documentation on __has_builtin and on type traits to match.
While doing this I noticed the type trait documentation was out of date
and incomplete; that's fixed here too.
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