c-cppbuiltin.c (builtin_define_float_constants): Add fp_cast parameter, pass...

c-cppbuiltin.c (builtin_define_float_constants): Add fp_cast parameter, pass to builtin_define_with_hex_fp_value.

2005-12-13  Carlos O'Donell <carlos@codesourcery.com>

gcc/

	* c-cppbuiltin.c (builtin_define_float_constants): Add
	fp_cast parameter, pass to builtin_define_with_hex_fp_value.
	Define __FLT_HAS_DENORM__, __DBL_HAS_DENORM__, __LDBL_HAS_DENORM__.
	(builtin_define_with_hex_fp_value): Use fp_cast when building macro.
	(c_cpp_builtins): If flag_single_precision_constant then set fp_cast
	to "((double)%sL)" otherwise "%s".

gcc/testsuite/

	* gcc.dg/single-precision-constant.c: New test.

libstdc++-v3/

	* include/std/std_limits.h (struct numeric_limits):
	Use __DBL_HAS_DENORM__, __FLT_HAS_DENORM__, __LDBL_HAS_DENORM__.

From-SVN: r108458