c-common.c (builtin_define_type_precision): New function.

c-common.c (builtin_define_type_precision): New function.

gcc/
 2002-08-28  Gabriel Dos Reis  <gdr@integrable-solutions.net>

 * c-common.c (builtin_define_type_precision): New function.
 (cb_register_builtins): Use it.  Define __WCHAR_UNSIGNED__ is
 wchar_t is unsigned in C++.
 * doc/cpp.texi (Common Predefined Macros): Document
 __WCHAR_UNSIGNED__, __CHAR_BIT__, __WCHAR_BIT__, __SHRT_BIT__,
 __INT_BIT__, __LONG_BIT__, __LONG_LONG_BIT__, __FLOAT_BIT__,
 __DOUBLE_BIT__, __LONG_DOUBLE_BIT__.

libstdc++-v3/

2002-08-28  Gabriel Dos Reis  <gdr@integrable-solutions.net>

	    * include/std/std_limits.h (__glibcpp_char_bits,
	    __glibcpp_short_bits, __glibcpp_int_bits,
	    __glibcpp_long_bits,
	    __glibcpp_long_long_bits, __glibcpp_float_bits,
	    __glibcpp_double_bits, __glibcpp_long_double_bits):
	    Remove.  Use
	    compiler predifined macros.
	    (__glibcpp_wchar_t_is_signed): Define based on compiler
	    predefined
	    __WCHAR_UNSIGNED__.

From-SVN: r56646