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re PR c++/79301 (With -Werror=pedantic outside C++17 mode, __has_cpp_attribute(fallthrough) is nonzero but [[fallthrough]] fails)

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PR c++/79301
	* parser.c (cp_parser_std_attribute): Don't pedwarn about
	[[deprecated]] with -std=c++11 and [[fallthrough]] with
	-std=c++11 and -std=c++14.

	* g++.dg/cpp1y/feat-cxx11-neg.C: Remove (with pedwarn) from
	[[deprecated]] comment.
	* g++.dg/cpp1y/feat-cxx98-neg.C: Likewise.
	* g++.dg/cpp1y/feat-cxx11.C: Likewise.
	* g++.dg/cpp1y/attr-deprecated-neg.C: Don't expect warnings for
	[[deprecated]] in -std=c++11.
	* g++.dg/cpp0x/fallthrough2.C: Don't expect warnings for
	[[fallthrough]] in -std=c++11 and -std=c++14.

From-SVN: r245489
This commit is contained in:
Jakub Jelinek 2017-02-15 18:10:40 +01:00 committed by Jakub Jelinek
parent 4f5e5fcba8
commit e72028574f
8 changed files with 25 additions and 22 deletions
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5
gcc/cp/ChangeLog
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@ -1,5 +1,10 @@
2017-02-15 Jakub Jelinek <jakub@redhat.com>
PR c++/79301
* parser.c (cp_parser_std_attribute): Don't pedwarn about
[[deprecated]] with -std=c++11 and [[fallthrough]] with
-std=c++11 and -std=c++14.
PR c++/79288
* decl.c (grokdeclarator): For static data members, handle thread_p
only after handling inline.

16
gcc/cp/parser.c
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@ -24749,22 +24749,10 @@ cp_parser_std_attribute (cp_parser *parser, tree attr_ns)
TREE_PURPOSE (TREE_PURPOSE (attribute)) = get_identifier ("gnu");
/* C++14 deprecated attribute is equivalent to GNU's. */
else if (is_attribute_p ("deprecated", attr_id))
{
if (cxx_dialect == cxx11)
pedwarn (token->location, OPT_Wpedantic,
"%<deprecated%> is a C++14 feature;"
" use %<gnu::deprecated%>");
TREE_PURPOSE (TREE_PURPOSE (attribute)) = get_identifier ("gnu");
}
TREE_PURPOSE (TREE_PURPOSE (attribute)) = get_identifier ("gnu");
/* C++17 fallthrough attribute is equivalent to GNU's. */
else if (is_attribute_p ("fallthrough", attr_id))
{
if (cxx_dialect < cxx1z)
pedwarn (token->location, OPT_Wpedantic,
"%<fallthrough%> is a C++17 feature;"
" use %<gnu::fallthrough%>");
TREE_PURPOSE (TREE_PURPOSE (attribute)) = get_identifier ("gnu");
}
TREE_PURPOSE (TREE_PURPOSE (attribute)) = get_identifier ("gnu");
/* Transactional Memory TS optimize_for_synchronized attribute is
equivalent to GNU transaction_callable. */
else if (is_attribute_p ("optimize_for_synchronized", attr_id))

10
gcc/testsuite/ChangeLog
View File

@ -1,5 +1,15 @@
2017-02-15 Jakub Jelinek <jakub@redhat.com>
PR c++/79301
* g++.dg/cpp1y/feat-cxx11-neg.C: Remove (with pedwarn) from
[[deprecated]] comment.
* g++.dg/cpp1y/feat-cxx98-neg.C: Likewise.
* g++.dg/cpp1y/feat-cxx11.C: Likewise.
* g++.dg/cpp1y/attr-deprecated-neg.C: Don't expect warnings for
[[deprecated]] in -std=c++11.
* g++.dg/cpp0x/fallthrough2.C: Don't expect warnings for
[[fallthrough]] in -std=c++11 and -std=c++14.
PR c++/79288
* g++.dg/tls/pr79288.C: New test.

2
gcc/testsuite/g++.dg/cpp0x/fallthrough2.C
View File

@ -11,7 +11,7 @@ f (int i)
{
case 1:
bar (1);
[[fallthrough]]; // { dg-warning ".fallthrough. is a C\\+\\+17 feature" "" { target { c++14_down } } }
[[fallthrough]];
case 3:
bar (1);
[[gnu::fallthrough, gnu::fallthrough]]; // { dg-warning ".fallthrough. attribute specified multiple times" }

8
gcc/testsuite/g++.dg/cpp1y/attr-deprecated-neg.C
View File

@ -1,22 +1,22 @@
// { dg-do compile { target c++11_only } }
// { dg-options "-pedantic" }
class [[deprecated]] A // { dg-warning "'deprecated' is a C..14 feature" }
class [[deprecated]] A // { dg-bogus "'deprecated' is a C..14 feature" }
{
};
[[deprecated]] // { dg-warning "'deprecated' is a C..14 feature" }
[[deprecated]] // { dg-bogus "'deprecated' is a C..14 feature" }
int
foo(int n)
{
return 42 + n;
}
class [[deprecated("B has been superceded by C")]] B // { dg-warning "'deprecated' is a C..14 feature" }
class [[deprecated("B has been superceded by C")]] B // { dg-bogus "'deprecated' is a C..14 feature" }
{
};
[[deprecated("bar is unsafe; use foobar instead")]] // { dg-warning "'deprecated' is a C..14 feature" }
[[deprecated("bar is unsafe; use foobar instead")]] // { dg-bogus "'deprecated' is a C..14 feature" }
int
bar(int n)
{

2
gcc/testsuite/g++.dg/cpp1y/feat-cxx11-neg.C
View File

@ -57,7 +57,7 @@
// C++14 attributes:
// Attribute [[deprecated]] is allowed in C++11 as an extension (with pedwarn).
// Attribute [[deprecated]] is allowed in C++11 as an extension.
//#ifdef __has_cpp_attribute
//# if __has_cpp_attribute(deprecated) == 201309
//# error "__has_cpp_attribute(deprecated)" // { }

2
gcc/testsuite/g++.dg/cpp1y/feat-cxx11.C
View File

@ -166,7 +166,7 @@
// C++14 attributes:
// Attribute [[deprecated]] is allowed in C++11 as an extension (with pedwarn).
// Attribute [[deprecated]] is allowed in C++11 as an extension.
#ifdef __has_cpp_attribute
# if ! __has_cpp_attribute(deprecated)
# error "__has_cpp_attribute(deprecated)"

2
gcc/testsuite/g++.dg/cpp1y/feat-cxx98-neg.C
View File

@ -144,7 +144,7 @@
// C++14 attributes:
// Attribute [[deprecated]] is allowed in C++11 as an extension (with pedwarn).
// Attribute [[deprecated]] is allowed in C++11 as an extension.
//#ifdef __has_cpp_attribute
//# if __has_cpp_attribute(deprecated) == 201309
//# error "__has_cpp_attribute(deprecated)" // { }