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extend.texi (__builtin_has_attribute): Add a clarifying note.

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gcc/ChangeLog:
	* doc/extend.texi (__builtin_has_attribute): Add a clarifying note.

From-SVN: r270327
This commit is contained in:
Martin Sebor 2019-04-12 13:11:59 -06:00
parent 3fb82380dc
commit 41fe51dd06
1 changed files with 5 additions and 2 deletions
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gcc/doc/extend.texi
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@ -12623,8 +12623,11 @@ check its compatibility with @var{size}.
The @code{__builtin_has_attribute} function evaluates to an integer constant
expression equal to @code{true} if the symbol or type referenced by
the @var{type-or-expression} argument has been declared with
the @var{attribute} referenced by the second argument. Neither argument
is evaluated. The @var{type-or-expression} argument is subject to the same
the @var{attribute} referenced by the second argument. For
an @var{type-or-expression} argument that does not reference a symbol,
since attributes do not apply to expressions the built-in consider
the type of the argument. Neither argument is evaluated.
The @var{type-or-expression} argument is subject to the same
restrictions as the argument to @code{typeof} (@pxref{Typeof}). The
@var{attribute} argument is an attribute name optionally followed by
a comma-separated list of arguments enclosed in parentheses. Both forms