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| author | Martin Sebor <msebor@redhat.com> | 2019-10-28 22:46:28 +0000 |
|---|---|---|
| committer | Martin Sebor <msebor@gcc.gnu.org> | 2019-10-28 16:46:28 -0600 |
| commit | ad1539d5555a161cf6851de8995641d6dfe792d9 (patch) | |
| tree | e56e9d15ba5ff4476a38e5269c6163b5dc6a36e9 /libcpp/include | |
| parent | 48b2123f6336ba6c06846d7c8b60bd14eaeae7ec (diff) | |
| download | gcc-ad1539d5555a161cf6851de8995641d6dfe792d9.zip gcc-ad1539d5555a161cf6851de8995641d6dfe792d9.tar.gz gcc-ad1539d5555a161cf6851de8995641d6dfe792d9.tar.bz2 | |
PR c/66970 - Add __has_builtin() macro
gcc/ChangeLog:
PR c/66970
* doc/cpp.texi (__has_builtin): Document.
* doc/extend.texi (__builtin_frob_return_addr): Correct spelling.
gcc/c/ChangeLog:
PR c/66970
* c-decl.c (names_builtin_p): Define a new function.
gcc/c-family/ChangeLog:
PR c/66970
* c-common.c (c_common_nodes_and_builtins): Call c_define_builtins
even when only preprocessing.
* c-common.h (names_builtin_p): Declare new function.
* c-lex.c (init_c_lex): Set has_builtin.
(c_common_has_builtin): Define a new function.
* c-ppoutput.c (init_pp_output): Set has_builtin.
gcc/cp/ChangeLog:
PR c/66970
* cp-objcp-common.c (names_builtin_p): Define new function.
gcc/testsuite/ChangeLog:
PR c/66970
* c-c++-common/cpp/has-builtin-2.c: New test.
* c-c++-common/cpp/has-builtin-3.c: New test.
* c-c++-common/cpp/has-builtin.c: New test.
From-SVN: r277544
Diffstat (limited to 'libcpp/include')
| -rw-r--r-- | libcpp/include/cpplib.h | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/libcpp/include/cpplib.h b/libcpp/include/cpplib.h index 224369b..c655d3f 100644 --- a/libcpp/include/cpplib.h +++ b/libcpp/include/cpplib.h @@ -676,6 +676,9 @@ struct cpp_callbacks /* Callback to identify whether an attribute exists. */ int (*has_attribute) (cpp_reader *); + /* Callback to determine whether a built-in function is recognized. */ + int (*has_builtin) (cpp_reader *); + /* Callback that can change a user lazy into normal macro. */ void (*user_lazy_macro) (cpp_reader *, cpp_macro *, unsigned); @@ -855,7 +858,8 @@ enum cpp_builtin_type BT_PRAGMA, /* `_Pragma' operator */ BT_TIMESTAMP, /* `__TIMESTAMP__' */ BT_COUNTER, /* `__COUNTER__' */ - BT_HAS_ATTRIBUTE /* `__has_attribute__(x)' */ + BT_HAS_ATTRIBUTE, /* `__has_attribute__(x)' */ + BT_HAS_BUILTIN /* `__has_builtin(x)' */ }; #define CPP_HASHNODE(HNODE) ((cpp_hashnode *) (HNODE)) |