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cpplib.h (struct cpp_options): Add warn_cxx_operator_names field.

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libcpp/:
	* include/cpplib.h (struct cpp_options): Add
	warn_cxx_operator_names field.
	(NODE_WARN_OPERATOR): Define.
	(struct cpp_hashnode): Increase flags field to 10 bits, decrease
	type to 6 bits.
	* init.c (mark_named_operators): Add flags parameter.
	(cpp_post_options): Pick flags value to pass to
	mark_named_operators.
	* lex.c (lex_identifier): If NODE_WARN_OPERATOR is set, warn that
	identifier is an operator name in C++.
gcc/:
	* fold-const.c (fold_unary): Rename local variable and to
	and_expr.
	* c-opts.c (c_common_handle_option): For -Wc++-compat set
	cpp_opts->warn_cxx_operator_names.
gcc/testsuite/:
	* gcc.dg/Wcxx-compat-13.c: New testcase.

From-SVN: r148438
This commit is contained in:
Ian Lance Taylor
2009-06-12 19:43:25 +00:00
committed by Ian Lance Taylor
parent 737142ced7
commit 3d8b2a98ca
9 changed files with 82 additions and 11 deletions
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15
libcpp/init.c
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@@ -28,7 +28,7 @@ along with this program; see the file COPYING3. If not see
#include "localedir.h"
static void init_library (void);
static void mark_named_operators (cpp_reader *);
static void mark_named_operators (cpp_reader *, int);
static void read_original_filename (cpp_reader *);
static void read_original_directory (cpp_reader *);
static void post_options (cpp_reader *);
@@ -366,7 +366,7 @@ static const struct builtin_operator operator_array[] =
/* Mark the C++ named operators in the hash table. */
static void
mark_named_operators (cpp_reader *pfile)
mark_named_operators (cpp_reader *pfile, int flags)
{
const struct builtin_operator *b;
@@ -375,7 +375,7 @@ mark_named_operators (cpp_reader *pfile)
b++)
{
cpp_hashnode *hp = cpp_lookup (pfile, b->name, b->len);
hp->flags |= NODE_OPERATOR;
hp->flags |= flags;
hp->is_directive = 0;
hp->directive_index = b->value;
}
@@ -512,13 +512,20 @@ static void sanity_checks (cpp_reader *pfile)
void
cpp_post_options (cpp_reader *pfile)
{
int flags;
sanity_checks (pfile);
post_options (pfile);
/* Mark named operators before handling command line macros. */
flags = 0;
if (CPP_OPTION (pfile, cplusplus) && CPP_OPTION (pfile, operator_names))
mark_named_operators (pfile);
flags |= NODE_OPERATOR;
if (CPP_OPTION (pfile, warn_cxx_operator_names))
flags |= NODE_DIAGNOSTIC | NODE_WARN_OPERATOR;
if (flags != 0)
mark_named_operators (pfile, flags);
}
/* Setup for processing input from the file named FNAME, or stdin if