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Joseph Myers aa50850225 re PR preprocessor/20078 (Gcc doesn't complain about non-benign macro definitions) 
libcpp:
	PR preprocessor/20078
	* include/cpp-id-data.h (struct cpp_macro): Add extra_tokens
	field.
	* include/cpplib.h (SP_DIGRAPH, SP_PREV_WHITE): Define.
	(struct cpp_token): Change flags to unsigned short.
	* lex.c (_cpp_lex_direct): Initialize arg_no for CPP_PASTE tokens.
	(_cpp_equiv_tokens): Check arg_no for CPP_PASTE tokens.
	(cpp_token_val_index): Return CPP_TOKEN_FLD_ARG_NO for CPP_PASTE
	tokens.
	* macro.c (macro_real_token_count): New.
	(enter_macro_context, replace_args): Use macro_real_token_count.
	(create_iso_definition): Record whitespace surrounding and digraph
	spelling of # and ## tokens using SP_PREV_WHITE and SP_DIGRAPH.
	Set extra_tokens and save CPP_PASTE tokens with arg_no set for
	multiple consecutive ## tokens.
	(_cpp_create_definition): Initialize extra_tokens.
	(cpp_macro_definition): Use macro_real_token_count.

gcc/testsuite:
	* gcc.dg/cpp/paste16.c, gcc.dg/cpp/redef4.c: New tests.

From-SVN: r146352
 		2009-04-19 18:10:56 +01:00
..
cpp-id-data.h re PR preprocessor/20078 (Gcc doesn't complain about non-benign macro definitions) 2009-04-19 18:10:56 +01:00
cpplib.h re PR preprocessor/20078 (Gcc doesn't complain about non-benign macro definitions) 2009-04-19 18:10:56 +01:00
line-map.h re PR preprocessor/39646 (__FILE__ breaks for empty file name) 2009-04-18 18:36:28 +01:00
mkdeps.h Licensing changes to GPLv3 resp. GPLv3 with GCC Runtime Exception. 2009-04-09 17:00:19 +02:00
symtab.h Licensing changes to GPLv3 resp. GPLv3 with GCC Runtime Exception. 2009-04-09 17:00:19 +02:00