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| author | Bernd Edlinger <edlinger@gcc.gnu.org> | 2016-11-21 14:17:05 +0000 |
|---|---|---|
| committer | Bernd Edlinger <edlinger@gcc.gnu.org> | 2016-11-21 14:17:05 +0000 |
| commit | 48330c9355e32a41f18556fc0ebccdfe2cc51044 (patch) | |
| tree | 2aa8fba617d40e3e606b3bdf3e74fb9eda06ff81 /gcc/doc | |
| parent | eeeaf7199a10b61c188785e7a86cd3cdecba07c3 (diff) | |
| download | gcc-48330c9355e32a41f18556fc0ebccdfe2cc51044.zip gcc-48330c9355e32a41f18556fc0ebccdfe2cc51044.tar.gz gcc-48330c9355e32a41f18556fc0ebccdfe2cc51044.tar.bz2 | |
re PR c++/71973 (c++ handles built-in functions inconsistently)
gcc:
2016-11-21 Bernd Edlinger <bernd.edlinger@hotmail.de>
PR c++/71973
* doc/invoke.texi (-Wno-builtin-declaration-mismatch): Document the
new default-enabled warning..
* builtin-types.def (BT_CONST_TM_PTR): New primitive type.
(BT_PTR_CONST_STRING): Updated.
(BT_FN_SIZE_STRING_SIZE_CONST_STRING_CONST_PTR): Removed.
(BT_FN_SIZE_STRING_SIZE_CONST_STRING_CONST_TM_PTR): New function type.
* builtins.def (DEF_TM_BUILTIN): Disable BOTH_P for TM builtins.
(strftime): Update builtin function.
* tree-core.h (TI_CONST_TM_PTR_TYPE): New enum value.
* tree.h (const_tm_ptr_type_node): New type node.
* tree.c (free_lang_data, build_common_tree_nodes): Initialize
const_tm_ptr_type_node.
c-family:
2016-11-21 Bernd Edlinger <bernd.edlinger@hotmail.de>
PR c++/71973
* c.opt (-Wbuiltin-declaration-mismatch): New warning.
* c-common.c (c_common_nodes_and_builtins): Initialize
const_tm_ptr_type_node.
c:
2016-11-21 Bernd Edlinger <bernd.edlinger@hotmail.de>
PR c++/71973
* c-decl.c (diagnose_mismatched_decls): Use
OPT_Wbuiltin_declaration_mismatch here too.
cp:
2016-11-21 Bernd Edlinger <bernd.edlinger@hotmail.de>
PR c++/71973
* decl.c (duplicate_decls): Warn when a built-in function is redefined.
Don't overload builtin functions with C++ functions.
Handle const_tm_ptr_type_node like file_ptr_node.
Copy the TREE_NOTHROW flag unmodified to the old decl.
lto:
2016-11-21 Bernd Edlinger <bernd.edlinger@hotmail.de>
PR c++/71973
* lto-lang.c (lto_init): Assert const_tm_ptr_type_node is sane.
testsuite:
2016-11-21 Bernd Edlinger <bernd.edlinger@hotmail.de>
PR c++/71973
* g++.dg/pr71973-1.C: New test.
* g++.dg/pr71973-2.C: New test.
* g++.dg/pr71973-3.C: New test.
* g++.dg/lto/pr68811_0.C: Add -w to first lto-options.
* g++.dg/lookup/extern-c-redecl4.C: Adjust test expectations.
* g++.old-deja/g++.mike/p700.C: Add -Wno-builtin-declaration-mismatch
to dg-options.
* g++.old-deja/g++.other/realloc.C: Likewise.
* g++.old-deja/g++.other/builtins10.C: Adjust test expectations.
From-SVN: r242662
Diffstat (limited to 'gcc/doc')
| -rw-r--r-- | gcc/doc/invoke.texi | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi index e6c3dc2..4dcaf10 100644 --- a/gcc/doc/invoke.texi +++ b/gcc/doc/invoke.texi @@ -259,6 +259,7 @@ Objective-C and Objective-C++ Dialects}. -Walloca -Walloca-larger-than=@var{n} @gol -Wno-aggressive-loop-optimizations -Warray-bounds -Warray-bounds=@var{n} @gol -Wno-attributes -Wbool-compare -Wbool-operation @gol +-Wno-builtin-declaration-mismatch @gol -Wno-builtin-macro-redefined -Wc90-c99-compat -Wc99-c11-compat @gol -Wc++-compat -Wc++11-compat -Wc++14-compat -Wcast-align -Wcast-qual @gol -Wchar-subscripts -Wclobbered -Wcomment -Wconditionally-supported @gol @@ -5925,6 +5926,12 @@ unrecognized attributes, function attributes applied to variables, etc. This does not stop errors for incorrect use of supported attributes. +@item -Wno-builtin-declaration-mismatch +@opindex Wno-builtin-declaration-mismatch +@opindex Wbuiltin-declaration-mismatch +Warn if a built-in function is declared with the wrong signature. +This warning is enabled by default. + @item -Wno-builtin-macro-redefined @opindex Wno-builtin-macro-redefined @opindex Wbuiltin-macro-redefined |