r147259 - in /trunk/gcc: ChangeLog c-common.h c...

[janis at gcc dot gnu dot org]

Author: janis
Date: Thu May  7 22:34:08 2009
New Revision: 147259

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=147259
Log:
gcc/
	PR c/39037
	* c-common.h (mark_valid_location_for_stdc_pragma,
	valid_location_for_stdc_pragma_p, set_float_const_decimal64,
	clear_float_const_decimal64, float_const_decimal64_p): New.
	* c.opt (Wunsuffixed-float-constants): New.
	* c-lex.c (interpret_float): Use pragma FLOAT_CONST_DECIMAL64 for
	unsuffixed float constant, handle new warning.
	* c-cppbuiltin.c (c_cpp_builtins): Use cast for double constants.
	* c-decl.c (c_scope): New flag float_const_decimal64.
	(set_float_const_decimal64, clear_float_const_decimal64,
	float_const_decimal64_p): New.
	(push_scope): Set new flag.
	* c-parser.c (c_parser_translation_unit): Mark when it's valid
	to use STDC pragmas.
	(c_parser_external_declaration): Ditto.
	(c_parser_compound_statement_nostart): Ditto.
	* c-pragma.c (valid_location_for_stdc_pragma,
	mark_valid_location_for_stdc_pragma,
	valid_location_for_stdc_pragma_p, handle_stdc_pragma,
	handle_pragma_float_const_decimal64): New.
	(init_pragma): Register new pragma FLOAT_CONST_DECIMAL64.
	* cp/semantics.c (valid_location_for_stdc_pragma_p,
	set_float_const_decimal64, clear_float_const_decimal64,
	float_const_decimal64_p): New dummy functions.
	* doc/extend.texi (Decimal Float): Remove statement that the
	pragma, and suffix for double constants, are not supported.
	* doc/invoke.texi (Warning Options): List new option.
	(-Wunsuffixed-float-constants): New.

gcc/testsuite
	PR c/39037
	* gcc.dg/Wunsuffixed-float-constants-1.c: New test.
	* gcc.dg/cpp/pragma-float-const-decimal64-1.c: New test.
	* gcc.dg/dfp/float-constant-double.c: New test.
	* gcc.dg/dfp/pragma-float-const-decimal64-1.c: New test.
	* gcc.dg/dfp/pragma-float-const-decimal64-2.c: New test.
	* gcc.dg/dfp/pragma-float-const-decimal64-3.c: New test.
	* gcc.dg/dfp/pragma-float-const-decimal64-4.c: New test.
	* gcc.dg/dfp/pragma-float-const-decimal64-5.c: New test.
	* gcc.dg/dfp/pragma-float-const-decimal64-6.c: New test.
	* gcc.dg/dfp/pragma-float-const-decimal64-7.c: New test.
	* gcc.dg/dfp/pragma-float-const-decimal64-8.c: New test.
	* g++.dg/cpp/pragma-float-const-decimal64-1.C: New test.

Added:
    trunk/gcc/testsuite/g++.dg/cpp/pragma-float-const-decimal64-1.C
    trunk/gcc/testsuite/gcc.dg/Wunsuffixed-float-constants-1.c
    trunk/gcc/testsuite/gcc.dg/cpp/pragma-float-const-decimal64-1.c
    trunk/gcc/testsuite/gcc.dg/dfp/float-constant-double.c
    trunk/gcc/testsuite/gcc.dg/dfp/pragma-float-const-decimal64-1.c
    trunk/gcc/testsuite/gcc.dg/dfp/pragma-float-const-decimal64-2.c
    trunk/gcc/testsuite/gcc.dg/dfp/pragma-float-const-decimal64-3.c
    trunk/gcc/testsuite/gcc.dg/dfp/pragma-float-const-decimal64-4.c
    trunk/gcc/testsuite/gcc.dg/dfp/pragma-float-const-decimal64-5.c
    trunk/gcc/testsuite/gcc.dg/dfp/pragma-float-const-decimal64-6.c
    trunk/gcc/testsuite/gcc.dg/dfp/pragma-float-const-decimal64-7.c
    trunk/gcc/testsuite/gcc.dg/dfp/pragma-float-const-decimal64-8.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/c-common.h
    trunk/gcc/c-cppbuiltin.c
    trunk/gcc/c-decl.c
    trunk/gcc/c-lex.c
    trunk/gcc/c-parser.c
    trunk/gcc/c-pragma.c
    trunk/gcc/c.opt
    trunk/gcc/cp/semantics.c
    trunk/gcc/doc/extend.texi
    trunk/gcc/doc/invoke.texi
    trunk/gcc/testsuite/ChangeLog