diff --git a/libstdc++-v3/ChangeLog b/libstdc++-v3/ChangeLog
index c762299da156b0723bd6af6d55a7db010bd9bdb3..f396b233546d2512df1e4350e4cbc081f65c4038 100644
--- a/libstdc++-v3/ChangeLog
+++ b/libstdc++-v3/ChangeLog
@@ -1,3 +1,54 @@
+2002-09-23 Richard Henderson <rth@redhat.com>
+
+ * include/std/std_limits.h (__glibcpp_plain_char_is_signed,
+ __glibcpp_wchar_t_is_signed, __glibcpp_s8_max, __glibcpp_s8_min,
+ __glibcpp_s8_digits, __glibcpp_s8_digits10, __glibcpp_u8_min,
+ __glibcpp_u8_max, __glibcpp_u8_digits, __glibcpp_u8_digits10,
+ __glibcpp_s16_max, __glibcpp_s16_min, __glibcpp_s16_digits,
+ __glibcpp_s16_digits10, __glibcpp_u16_min, __glibcpp_u16_max,
+ __glibcpp_u16_digits, __glibcpp_u16_digits10, __glibcpp_s32_max,
+ __glibcpp_s32_min, __glibcpp_s32_digits, __glibcpp_s32_digits10,
+ __glibcpp_u32_min, __glibcpp_u32_max, __glibcpp_u32_digits,
+ __glibcpp_u32_digits10, __glibcpp_s64_max, __glibcpp_s64_min,
+ __glibcpp_s64_digits, __glibcpp_s64_digits10, __glibcpp_u64_min,
+ __glibcpp_u64_max, __glibcpp_u64_digits, __glibcpp_u64_digits10,
+ __glibcpp_bool_digits, __glibcpp_signed_char_min,
+ __glibcpp_signed_char_max, __glibcpp_signed_char_digits,
+ __glibcpp_signed_char_digits10, __glibcpp_unsigned_char_min,
+ __glibcpp_unsigned_char_max, __glibcpp_unsigned_char_digits,
+ __glibcpp_unsigned_char_digits10, __glibcpp_char_min,
+ __glibcpp_char_max, __glibcpp_char_digits, __glibcpp_char_digits10,
+ __glibcpp_signed_short_min, __glibcpp_signed_short_max,
+ __glibcpp_signed_short_digits, __glibcpp_signed_short_digits10,
+ __glibcpp_unsigned_short_min, __glibcpp_unsigned_short_max,
+ __glibcpp_unsigned_short_digits, __glibcpp_unsigned_short_digits10,
+ __glibcpp_signed_int_min, __glibcpp_signed_int_max,
+ __glibcpp_signed_int_digits, __glibcpp_signed_int_digits10,
+ __glibcpp_unsigned_int_min, __glibcpp_unsigned_int_max,
+ __glibcpp_unsigned_int_digits, __glibcpp_unsigned_int_digits10,
+ __glibcpp_signed_long_min, __glibcpp_signed_long_max,
+ __glibcpp_unsigned_long_digits, __glibcpp_unsigned_long_digits10,
+ __glibcpp_signed_long_long_min, __glibcpp_signed_long_long_max,
+ __glibcpp_signed_long_long_digits, __glibcpp_signed_long_long_digits10,
+ __glibcpp_wchar_t_min, __glibcpp_wchar_t_max, __glibcpp_wchar_t_digits,
+ __glibcpp_wchar_t_digits10): Remove.
+ (__glibcpp_byte, __glibcpp_word_bits, __glibcpp_word): Remove.
+ (__float_storage, __double_storage, __long_double_storage): Remove.
+ (__glibcpp_signed, __glibcpp_min, __glibcpp_max): New.
+ (__glibcpp_digits, __glibcpp_digits10): New.
+ (numeric_limits<T>::min): Use __glibcpp_min or limits.h builtins.
+ (numeric_limits<T>::max): Use __glibcpp_max or limits.h builtins.
+ (numeric_limits<T>::is_signed, T=char,wchar_t): Use __glibcpp_signed.
+ (numeric_limits<T>::digits): Use __glibcpp_digits.
+ (numeric_limits<T>::digits10): Use __glibcpp_digits10.
+ * testsuite/18_support/numeric_limits.cc (test03): Don't use
+ __glibcpp_s8_digits10 et al; check vs the installed versions
+ of digits10 for particular sizes.
+
+ * include/std/std_limits.h (__glibcpp_float_is_modulo,
+ __glibcpp_double_is_modulo, __glibcpp_long_double_is_modulo): Kill.
+ (numeric_limits<T>::is_modulo, T floating): Use false.
+
2002-09-22 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
* Makefile.am (all-multi): Fix multilib parallel build.
diff --git a/libstdc++-v3/include/std/std_limits.h b/libstdc++-v3/include/std/std_limits.h
index 00d01b7153e6bebe54be0ee91840e1d55276b443..275ce62a1a4bb0b0b62dbde177cad1f7b068bddb 100644
--- a/libstdc++-v3/include/std/std_limits.h
+++ b/libstdc++-v3/include/std/std_limits.h
@@ -64,31 +64,19 @@
// double (1)
// long double (1)
//
-// GNU C++ undertstands (where supported by the host C-library)
+// GNU C++ undertstands (where supported by the host C-library)
// * integer
// long long, unsigned long long (2)
//
// which brings us to 15 fundamental arithmetic data types in GNU C++.
//
-//
+//
// Since a numeric_limits<> is a bit tricky to get right, we rely on
// an interface composed of macros which should be defined in config/os
// or config/cpu when they differ from the generic (read arbitrary)
// definitions given here.
//
-#ifdef __CHAR_UNSIGNED__
-# define __glibcpp_plain_char_is_signed false
-#else
-# define __glibcpp_plain_char_is_signed true
-#endif
-
-#ifndef __WCHAR_UNSIGNED__
-# define __glibcpp_wchar_t_is_signed false
-#else
-# define __glibcpp_wchar_t_is_signed true
-#endif
-
// These values can be overridden in the target configuration file.
// The default values are appropriate for many 32-bit targets.
@@ -99,326 +87,6 @@
# define __glibcpp_integral_traps true
#endif
-// You should not need to define any macros below this point, unless
-// you have a machine with non-standard bit-widths.
-
-// These values are the minimums and maximums for standard data types
-// of common widths.
-
-#define __glibcpp_s8_max 127
-#define __glibcpp_s8_min (-__glibcpp_s8_max - 1)
-#define __glibcpp_s8_digits 7
-#define __glibcpp_s8_digits10 2
-#define __glibcpp_u8_min 0U
-#define __glibcpp_u8_max (__glibcpp_s8_max * 2 + 1)
-#define __glibcpp_u8_digits 8
-#define __glibcpp_u8_digits10 2
-#define __glibcpp_s16_max 32767
-#define __glibcpp_s16_min (-__glibcpp_s16_max - 1)
-#define __glibcpp_s16_digits 15
-#define __glibcpp_s16_digits10 4
-#define __glibcpp_u16_min 0U
-#define __glibcpp_u16_max (__glibcpp_s16_max * 2 + 1)
-#define __glibcpp_u16_digits 16
-#define __glibcpp_u16_digits10 4
-#define __glibcpp_s32_max 2147483647L
-#define __glibcpp_s32_min (-__glibcpp_s32_max - 1)
-#define __glibcpp_s32_digits 31
-#define __glibcpp_s32_digits10 9
-#define __glibcpp_u32_min 0UL
-#define __glibcpp_u32_max (__glibcpp_s32_max * 2U + 1)
-#define __glibcpp_u32_digits 32
-#define __glibcpp_u32_digits10 9
-#define __glibcpp_s64_max 9223372036854775807LL
-#define __glibcpp_s64_min (-__glibcpp_s64_max - 1)
-#define __glibcpp_s64_digits 63
-#define __glibcpp_s64_digits10 18
-#define __glibcpp_u64_min 0ULL
-#define __glibcpp_u64_max (__glibcpp_s64_max * 2ULL + 1)
-#define __glibcpp_u64_digits 64
-#define __glibcpp_u64_digits10 19
-
-// bool-specific hooks:
-// __glibcpp_bool_digits
-
-#ifndef __glibcpp_bool_digits
-# define __glibcpp_bool_digits 1
-#endif
-
-// char.
-
-#if __CHAR_BIT__ == 8
-# define __glibcpp_signed_char_min __glibcpp_s8_min
-# define __glibcpp_signed_char_max __glibcpp_s8_max
-# define __glibcpp_signed_char_digits __glibcpp_s8_digits
-# define __glibcpp_signed_char_digits10 __glibcpp_s8_digits10
-# define __glibcpp_unsigned_char_min __glibcpp_u8_min
-# define __glibcpp_unsigned_char_max __glibcpp_u8_max
-# define __glibcpp_unsigned_char_digits __glibcpp_u8_digits
-# define __glibcpp_unsigned_char_digits10 __glibcpp_u8_digits10
-#elif __CHAR_BIT__ == 16
-# define __glibcpp_signed_char_min __glibcpp_s16_min
-# define __glibcpp_signed_char_max __glibcpp_s16_max
-# define __glibcpp_signed_char_digits __glibcpp_s16_digits
-# define __glibcpp_signed_char_digits10 __glibcpp_s16_digits10
-# define __glibcpp_unsigned_char_min __glibcpp_u16_min
-# define __glibcpp_unsigned_char_max __glibcpp_u16_max
-# define __glibcpp_unsigned_char_digits __glibcpp_u16_digits
-# define __glibcpp_unsigned_char_digits10 __glibcpp_u16_digits10
-#elif __CHAR_BIT__ == 32
-# define __glibcpp_signed_char_min (signed char)__glibcpp_s32_min
-# define __glibcpp_signed_char_max (signed char)__glibcpp_s32_max
-# define __glibcpp_signed_char_digits __glibcpp_s32_digits
-# define __glibcpp_signed_char_digits10 __glibcpp_s32_digits10
-# define __glibcpp_unsigned_char_min (unsigned char)__glibcpp_u32_min
-# define __glibcpp_unsigned_char_max (unsigned char)__glibcpp_u32_max
-# define __glibcpp_unsigned_char_digits __glibcpp_u32_digits
-# define __glibcpp_unsigned_char_digits10 __glibcpp_u32_digits10
-#elif __CHAR_BIT__ == 64
-# define __glibcpp_signed_char_min (signed char)__glibcpp_s64_min
-# define __glibcpp_signed_char_max (signed char)__glibcpp_s64_max
-# define __glibcpp_signed_char_digits __glibcpp_s64_digits
-# define __glibcpp_signed_char_digits10 __glibcpp_s64_digits10
-# define __glibcpp_unsigned_char_min (unsigned char)__glibcpp_u64_min
-# define __glibcpp_unsigned_char_max (unsigned char)__glibcpp_u64_max
-# define __glibcpp_unsigned_char_digits __glibcpp_u64_digits
-# define __glibcpp_unsigned_char_digits10 __glibcpp_u64_digits10
-#else
-// You must define these macros in the configuration file.
-#endif
-
-#if __glibcpp_plain_char_is_signed
-# define __glibcpp_char_min (char)__glibcpp_signed_char_min
-# define __glibcpp_char_max (char)__glibcpp_signed_char_max
-# define __glibcpp_char_digits __glibcpp_signed_char_digits
-# define __glibcpp_char_digits10 __glibcpp_signed_char_digits
-#else
-# define __glibcpp_char_min (char)__glibcpp_unsigned_char_min
-# define __glibcpp_char_max (char)__glibcpp_unsigned_char_max
-# define __glibcpp_char_digits __glibcpp_unsigned_char_digits
-# define __glibcpp_char_digits10 __glibcpp_unsigned_char_digits
-#endif
-
-// short
-
-#if __SHRT_BIT__ == 8
-# define __glibcpp_signed_short_min __glibcpp_s8_min
-# define __glibcpp_signed_short_max __glibcpp_s8_max
-# define __glibcpp_signed_short_digits __glibcpp_s8_digits
-# define __glibcpp_signed_short_digits10 __glibcpp_s8_digits10
-# define __glibcpp_unsigned_short_min __glibcpp_u8_min
-# define __glibcpp_unsigned_short_max __glibcpp_u8_max
-# define __glibcpp_unsigned_short_digits __glibcpp_u8_digits
-# define __glibcpp_unsigned_short_digits10 __glibcpp_u8_digits10
-#elif __SHRT_BIT__ == 16
-# define __glibcpp_signed_short_min __glibcpp_s16_min
-# define __glibcpp_signed_short_max __glibcpp_s16_max
-# define __glibcpp_signed_short_digits __glibcpp_s16_digits
-# define __glibcpp_signed_short_digits10 __glibcpp_s16_digits10
-# define __glibcpp_unsigned_short_min __glibcpp_u16_min
-# define __glibcpp_unsigned_short_max __glibcpp_u16_max
-# define __glibcpp_unsigned_short_digits __glibcpp_u16_digits
-# define __glibcpp_unsigned_short_digits10 __glibcpp_u16_digits10
-#elif __SHRT_BIT__ == 32
-# define __glibcpp_signed_short_min (short)__glibcpp_s32_min
-# define __glibcpp_signed_short_max (short)__glibcpp_s32_max
-# define __glibcpp_signed_short_digits __glibcpp_s32_digits
-# define __glibcpp_signed_short_digits10 __glibcpp_s32_digits10
-# define __glibcpp_unsigned_short_min (unsigned short)__glibcpp_u32_min
-# define __glibcpp_unsigned_short_max (unsigned short)__glibcpp_u32_max
-# define __glibcpp_unsigned_short_digits __glibcpp_u32_digits
-# define __glibcpp_unsigned_short_digits10 __glibcpp_u32_digits10
-#elif __SHRT_BIT__ == 64
-# define __glibcpp_signed_short_min (short)__glibcpp_s64_min
-# define __glibcpp_signed_short_max (short)__glibcpp_s64_max
-# define __glibcpp_signed_short_digits __glibcpp_s64_digits
-# define __glibcpp_signed_short_digits10 __glibcpp_s64_digits10
-# define __glibcpp_unsigned_short_min (unsigned short)__glibcpp_u64_min
-# define __glibcpp_unsigned_short_max (unsigned short)__glibcpp_u64_max
-# define __glibcpp_unsigned_short_digits __glibcpp_u64_digits
-# define __glibcpp_unsigned_short_digits10 __glibcpp_u64_digits10
-#else
-// You must define these macros in the configuration file.
-#endif
-
-// int
-
-#if __INT_BIT__ == 8
-# define __glibcpp_signed_int_min __glibcpp_s8_min
-# define __glibcpp_signed_int_max __glibcpp_s8_max
-# define __glibcpp_signed_int_digits __glibcpp_s8_digits
-# define __glibcpp_signed_int_digits10 __glibcpp_s8_digits10
-# define __glibcpp_unsigned_int_min __glibcpp_u8_min
-# define __glibcpp_unsigned_int_max __glibcpp_u8_max
-# define __glibcpp_unsigned_int_digits __glibcpp_u8_digits
-# define __glibcpp_unsigned_int_digits10 __glibcpp_u8_digits10
-#elif __INT_BIT__ == 16
-# define __glibcpp_signed_int_min __glibcpp_s16_min
-# define __glibcpp_signed_int_max __glibcpp_s16_max
-# define __glibcpp_signed_int_digits __glibcpp_s16_digits
-# define __glibcpp_signed_int_digits10 __glibcpp_s16_digits10
-# define __glibcpp_unsigned_int_min __glibcpp_u16_min
-# define __glibcpp_unsigned_int_max __glibcpp_u16_max
-# define __glibcpp_unsigned_int_digits __glibcpp_u16_digits
-# define __glibcpp_unsigned_int_digits10 __glibcpp_u16_digits10
-#elif __INT_BIT__ == 32
-# define __glibcpp_signed_int_min (int)__glibcpp_s32_min
-# define __glibcpp_signed_int_max (int)__glibcpp_s32_max
-# define __glibcpp_signed_int_digits __glibcpp_s32_digits
-# define __glibcpp_signed_int_digits10 __glibcpp_s32_digits10
-# define __glibcpp_unsigned_int_min (unsigned)__glibcpp_u32_min
-# define __glibcpp_unsigned_int_max (unsigned)__glibcpp_u32_max
-# define __glibcpp_unsigned_int_digits __glibcpp_u32_digits
-# define __glibcpp_unsigned_int_digits10 __glibcpp_u32_digits10
-#elif __INT_BIT__ == 64
-# define __glibcpp_signed_int_min (int)__glibcpp_s64_min
-# define __glibcpp_signed_int_max (int)__glibcpp_s64_max
-# define __glibcpp_signed_int_digits __glibcpp_s64_digits
-# define __glibcpp_signed_int_digits10 __glibcpp_s64_digits10
-# define __glibcpp_unsigned_int_min (unsigned)__glibcpp_u64_min
-# define __glibcpp_unsigned_int_max (unsigned)__glibcpp_u64_max
-# define __glibcpp_unsigned_int_digits __glibcpp_u64_digits
-# define __glibcpp_unsigned_int_digits10 __glibcpp_u64_digits10
-#else
-// You must define these macros in the configuration file.
-#endif
-
-// long
-
-#if __LONG_BIT__ == 8
-# define __glibcpp_signed_long_min __glibcpp_s8_min
-# define __glibcpp_signed_long_max __glibcpp_s8_max
-# define __glibcpp_signed_long_digits __glibcpp_s8_digits
-# define __glibcpp_signed_long_digits10 __glibcpp_s8_digits10
-# define __glibcpp_unsigned_long_min __glibcpp_u8_min
-# define __glibcpp_unsigned_long_max __glibcpp_u8_max
-# define __glibcpp_unsigned_long_digits __glibcpp_u8_digits
-# define __glibcpp_unsigned_long_digits10 __glibcpp_u8_digits10
-#elif __LONG_BIT__ == 16
-# define __glibcpp_signed_long_min __glibcpp_s16_min
-# define __glibcpp_signed_long_max __glibcpp_s16_max
-# define __glibcpp_signed_long_digits __glibcpp_s16_digits
-# define __glibcpp_signed_long_digits10 __glibcpp_s16_digits10
-# define __glibcpp_unsigned_long_min __glibcpp_u16_min
-# define __glibcpp_unsigned_long_max __glibcpp_u16_max
-# define __glibcpp_unsigned_long_digits __glibcpp_u16_digits
-# define __glibcpp_unsigned_long_digits10 __glibcpp_u16_digits10
-#elif __LONG_BIT__ == 32
-# define __glibcpp_signed_long_min __glibcpp_s32_min
-# define __glibcpp_signed_long_max __glibcpp_s32_max
-# define __glibcpp_signed_long_digits __glibcpp_s32_digits
-# define __glibcpp_signed_long_digits10 __glibcpp_s32_digits10
-# define __glibcpp_unsigned_long_min __glibcpp_u32_min
-# define __glibcpp_unsigned_long_max __glibcpp_u32_max
-# define __glibcpp_unsigned_long_digits __glibcpp_u32_digits
-# define __glibcpp_unsigned_long_digits10 __glibcpp_u32_digits10
-#elif __LONG_BIT__ == 64
-# define __glibcpp_signed_long_min (long)__glibcpp_s64_min
-# define __glibcpp_signed_long_max (long)__glibcpp_s64_max
-# define __glibcpp_signed_long_digits __glibcpp_s64_digits
-# define __glibcpp_signed_long_digits10 __glibcpp_s64_digits10
-# define __glibcpp_unsigned_long_min (unsigned long)__glibcpp_u64_min
-# define __glibcpp_unsigned_long_max (unsigned long)__glibcpp_u64_max
-# define __glibcpp_unsigned_long_digits __glibcpp_u64_digits
-# define __glibcpp_unsigned_long_digits10 __glibcpp_u64_digits10
-#else
-// You must define these macros in the configuration file.
-#endif
-
-// long long
-
-#if __LONG_LONG_BIT__ == 8
-# define __glibcpp_signed_long_long_min __glibcpp_s8_min
-# define __glibcpp_signed_long_long_max __glibcpp_s8_max
-# define __glibcpp_signed_long_long_digits __glibcpp_s8_digits
-# define __glibcpp_signed_long_long_digits10 __glibcpp_s8_digits10
-# define __glibcpp_unsigned_long_long_min __glibcpp_u8_min
-# define __glibcpp_unsigned_long_long_max __glibcpp_u8_max
-# define __glibcpp_unsigned_long_long_digits __glibcpp_u8_digits
-# define __glibcpp_unsigned_long_long_digits10 __glibcpp_u8_digits10
-#elif __LONG_LONG_BIT__ == 16
-# define __glibcpp_signed_long_long_min __glibcpp_s16_min
-# define __glibcpp_signed_long_long_max __glibcpp_s16_max
-# define __glibcpp_signed_long_long_digits __glibcpp_s16_digits
-# define __glibcpp_signed_long_long_digits10 __glibcpp_s16_digits10
-# define __glibcpp_unsigned_long_long_min __glibcpp_u16_min
-# define __glibcpp_unsigned_long_long_max __glibcpp_u16_max
-# define __glibcpp_unsigned_long_long_digits __glibcpp_u16_digits
-# define __glibcpp_unsigned_long_long_digits10 __glibcpp_u16_digits10
-#elif __LONG_LONG_BIT__ == 32
-# define __glibcpp_signed_long_long_min __glibcpp_s32_min
-# define __glibcpp_signed_long_long_max __glibcpp_s32_max
-# define __glibcpp_signed_long_long_digits __glibcpp_s32_digits
-# define __glibcpp_signed_long_long_digits10 __glibcpp_s32_digits10
-# define __glibcpp_unsigned_long_long_min __glibcpp_u32_min
-# define __glibcpp_unsigned_long_long_max __glibcpp_u32_max
-# define __glibcpp_unsigned_long_long_digits __glibcpp_u32_digits
-# define __glibcpp_unsigned_long_long_digits10 __glibcpp_u32_digits10
-#elif __LONG_LONG_BIT__ == 64
-# define __glibcpp_signed_long_long_min __glibcpp_s64_min
-# define __glibcpp_signed_long_long_max __glibcpp_s64_max
-# define __glibcpp_signed_long_long_digits __glibcpp_s64_digits
-# define __glibcpp_signed_long_long_digits10 __glibcpp_s64_digits10
-# define __glibcpp_unsigned_long_long_min __glibcpp_u64_min
-# define __glibcpp_unsigned_long_long_max __glibcpp_u64_max
-# define __glibcpp_unsigned_long_long_digits __glibcpp_u64_digits
-# define __glibcpp_unsigned_long_long_digits10 __glibcpp_u64_digits10
-#else
-// You must define these macros in the configuration file.
-#endif
-
-// wchar_t
-
-#if __glibcpp_wchar_t_is_signed
-# if __WCHAR_BIT__ == 8
-# define __glibcpp_wchar_t_min __glibcpp_s8_min
-# define __glibcpp_wchar_t_max __glibcpp_s8_max
-# define __glibcpp_wchar_t_digits __glibcpp_s8_digits
-# define __glibcpp_wchar_t_digits10 __glibcpp_s8_digits10
-# elif __WCHAR_BIT__ == 16
-# define __glibcpp_wchar_t_min __glibcpp_s16_min
-# define __glibcpp_wchar_t_max __glibcpp_s16_max
-# define __glibcpp_wchar_t_digits __glibcpp_s16_digits
-# define __glibcpp_wchar_t_digits10 __glibcpp_s16_digits10
-# elif __WCHAR_BIT__ == 32
-# define __glibcpp_wchar_t_min (wchar_t)__glibcpp_s32_min
-# define __glibcpp_wchar_t_max (wchar_t)__glibcpp_s32_max
-# define __glibcpp_wchar_t_digits __glibcpp_s32_digits
-# define __glibcpp_wchar_t_digits10 __glibcpp_s32_digits10
-# elif __WCHAR_BIT__ == 64
-# define __glibcpp_wchar_t_min (wchar_t)__glibcpp_s64_min
-# define __glibcpp_wchar_t_max (wchar_t)__glibcpp_s64_max
-# define __glibcpp_wchar_t_digits __glibcpp_s64_digits
-# define __glibcpp_wchar_t_digits10 __glibcpp_s64_digits10
-# else
-// You must define these macros in the configuration file.
-# endif
-#else
-# if __WCHAR_BIT__ == 8
-# define __glibcpp_wchar_t_min __glibcpp_u8_min
-# define __glibcpp_wchar_t_max __glibcpp_u8_max
-# define __glibcpp_wchar_t_digits __glibcpp_u8_digits
-# define __glibcpp_wchar_t_digits10 __glibcpp_u8_digits10
-# elif __WCHAR_BIT__ == 16
-# define __glibcpp_wchar_t_min __glibcpp_u16_min
-# define __glibcpp_wchar_t_max __glibcpp_u16_max
-# define __glibcpp_wchar_t_digits __glibcpp_u16_digits
-# define __glibcpp_wchar_t_digits10 __glibcpp_u16_digits10
-# elif __WCHAR_BIT__ == 32
-# define __glibcpp_wchar_t_min (wchar_t)__glibcpp_u32_min
-# define __glibcpp_wchar_t_max (wchar_t)__glibcpp_u32_max
-# define __glibcpp_wchar_t_digits __glibcpp_u32_digits
-# define __glibcpp_wchar_t_digits10 __glibcpp_u32_digits10
-# elif __WCHAR_BIT__ == 64
-# define __glibcpp_wchar_t_min (wchar_t)__glibcpp_u64_min
-# define __glibcpp_wchar_t_max (wchar_t)__glibcpp_u64_max
-# define __glibcpp_wchar_t_digits __glibcpp_u64_digits
-# define __glibcpp_wchar_t_digits10 __glibcpp_u64_digits10
-# else
-// You must define these macros in the configuration file.
-# endif
-#endif
-
// float
//
@@ -427,15 +95,9 @@
#ifndef __glibcpp_float_has_denorm_loss
# define __glibcpp_float_has_denorm_loss false
#endif
-
-#ifndef __glibcpp_float_is_modulo
-# define __glibcpp_float_is_modulo false
-#endif
-
#ifndef __glibcpp_float_traps
# define __glibcpp_float_traps false
#endif
-
#ifndef __glibcpp_float_tinyness_before
# define __glibcpp_float_tinyness_before false
#endif
@@ -447,15 +109,9 @@
#ifndef __glibcpp_double_has_denorm_loss
# define __glibcpp_double_has_denorm_loss false
#endif
-
-#ifndef __glibcpp_double_is_modulo
-# define __glibcpp_double_is_modulo false
-#endif
-
#ifndef __glibcpp_double_traps
# define __glibcpp_double_traps false
#endif
-
#ifndef __glibcpp_double_tinyness_before
# define __glibcpp_double_tinyness_before false
#endif
@@ -467,65 +123,34 @@
#ifndef __glibcpp_long_double_has_denorm_loss
# define __glibcpp_long_double_has_denorm_loss false
#endif
-
-#ifndef __glibcpp_long_double_is_modulo
-# define __glibcpp_long_double_is_modulo false
-#endif
-
#ifndef __glibcpp_long_double_traps
# define __glibcpp_long_double_traps false
#endif
-
#ifndef __glibcpp_long_double_tinyness_before
# define __glibcpp_long_double_tinyness_before false
#endif
+// You should not need to define any macros below this point.
+
+#define __glibcpp_signed(T) ((T)(-1) < 0)
+
+#define __glibcpp_min(T) \
+ (__glibcpp_signed (T) ? (T)1 << __glibcpp_digits (T) : (T)0)
+
+#define __glibcpp_max(T) \
+ (__glibcpp_signed (T) ? ((T)1 << __glibcpp_digits (T)) - 1 : ~(T)0)
+
+#define __glibcpp_digits(T) \
+ (sizeof(T) * __CHAR_BIT__ - __glibcpp_signed (T))
+
+// The fraction 643/2136 approximates log10(2) to 7 significant digits.
+#define __glibcpp_digits10(T) \
+ (__glibcpp_digits (T) * 643 / 2136)
+
namespace std
{
- // This is better handled by the compiler, but we do it here for the
- // time being. (We're just second-guessing something the compiler
- // knows about better than we do.) -- Gaby
- typedef unsigned char __glibcpp_byte;
-#define __glibcpp_word_bits 32
-#if __CHAR_BIT__ == __glibcpp_word_bits
-# define __glibcpp_word unsigned char
-#elif __SHRT_BIT__ == __glibcpp_word_bits
-# define __glibcpp_word unsigned short
-#elif __INT_BIT__ == __glibcpp_word_bits
-# define __glibcpp_word unsigned int
-#elif __LONG_BIT__ == __glibcpp_word_bits
-# define __glibcpp_word unsigned long
-#endif
-
- // Define storage types for the single, double and extended floating
- // point data types. Maybe we could avoid the conditional #defines by
- // using the aligned_storage<> extension. -- Gaby
- typedef const
-#if __FLOAT_BIT__ % __glibcpp_word_bits == 0
- __glibcpp_word __float_storage[sizeof (float) / sizeof (__glibcpp_word)]
-#else
- __glibcpp_byte __float_storage[sizeof (float)]
-#endif
- __attribute__((__aligned__(__alignof__(float))));
-
- typedef const
-#if __DOUBLE_BIT__ % __glibcpp_word_bits == 0
- __glibcpp_word __double_storage[sizeof (double) / sizeof (__glibcpp_word)]
-#else
- __glibcpp_byte __double_storage[sizeof (double)]
-#endif
- __attribute__((__aligned__(__alignof__(double))));
-
- typedef const
-#if __LONG_DOUBLE_BIT__ % __glibcpp_word_bits == 0
- __glibcpp_word __long_double_storage[sizeof (long double) / sizeof (__glibcpp_word)]
-#else
- __glibcpp_byte __long_double_storage[sizeof (long double)]
-#endif
- __attribute__((__aligned__(__alignof__(long double))));
-
- enum float_round_style
+ enum float_round_style
{
round_indeterminate = -1,
round_toward_zero = 0,
@@ -534,7 +159,7 @@ namespace std
round_toward_neg_infinity = 3
};
- enum float_denorm_style
+ enum float_denorm_style
{
denorm_indeterminate = -1,
denorm_absent = 0,
@@ -559,7 +184,7 @@ namespace std
static const int min_exponent10 = 0;
static const int max_exponent = 0;
static const int max_exponent10 = 0;
-
+
static const bool has_infinity = false;
static const bool has_quiet_NaN = false;
static const bool has_signaling_NaN = false;
@@ -575,8 +200,8 @@ namespace std
static const float_round_style round_style = round_toward_zero;
};
- template<typename _Tp>
- struct numeric_limits : public __numeric_limits_base
+ template<typename _Tp>
+ struct numeric_limits : public __numeric_limits_base
{
static _Tp min() throw() { return static_cast<_Tp>(0); }
static _Tp max() throw() { return static_cast<_Tp>(0); }
@@ -589,7 +214,7 @@ namespace std
};
// Now there follow 15 explicit specializations. Yes, 15. Make sure
- // you get the count right.
+ // you get the count right.
template<>
struct numeric_limits<bool>
{
@@ -597,11 +222,10 @@ namespace std
static bool min() throw()
{ return false; }
-
static bool max() throw()
{ return true; }
- static const int digits = __glibcpp_bool_digits;
+ static const int digits = 1;
static const int digits10 = 0;
static const bool is_signed = false;
static const bool is_integer = true;
@@ -644,21 +268,19 @@ namespace std
static const float_round_style round_style = round_toward_zero;
};
-#undef __glibcpp_bool_digits
-
template<>
struct numeric_limits<char>
{
static const bool is_specialized = true;
static char min() throw()
- { return __glibcpp_char_min; }
+ { return __glibcpp_min(char); }
static char max() throw()
- { return __glibcpp_char_max; }
+ { return __glibcpp_max(char); }
- static const int digits = __glibcpp_char_digits;
- static const int digits10 = __glibcpp_char_digits10;
- static const bool is_signed = __glibcpp_plain_char_is_signed;
+ static const int digits = __glibcpp_digits (char);
+ static const int digits10 = __glibcpp_digits10 (char);
+ static const bool is_signed = __glibcpp_signed (char);
static const bool is_integer = true;
static const bool is_exact = true;
static const int radix = 2;
@@ -696,26 +318,18 @@ namespace std
static const float_round_style round_style = round_toward_zero;
};
-#undef __glibcpp_char_min
-#undef __glibcpp_char_max
-#undef __glibcpp_char_digits
-#undef __glibcpp_char_digits10
-#undef __glibcpp_char_is_signed
-
-
-
template<>
struct numeric_limits<signed char>
{
static const bool is_specialized = true;
static signed char min() throw()
- { return __glibcpp_signed_char_min; }
+ { return -__SCHAR_MAX__ - 1; }
static signed char max() throw()
- { return __glibcpp_signed_char_max; }
+ { return __SCHAR_MAX__; }
- static const int digits = __glibcpp_signed_char_digits;
- static const int digits10 = __glibcpp_signed_char_digits10;
+ static const int digits = __glibcpp_digits (signed char);
+ static const int digits10 = __glibcpp_digits10 (signed char);
static const bool is_signed = true;
static const bool is_integer = true;
static const bool is_exact = true;
@@ -754,11 +368,6 @@ namespace std
static const float_round_style round_style = round_toward_zero;
};
-#undef __glibcpp_signed_char_min
-#undef __glibcpp_signed_char_max
-#undef __glibcpp_signed_char_digits
-#undef __glibcpp_signed_char_digits10
-
template<>
struct numeric_limits<unsigned char>
{
@@ -767,10 +376,10 @@ namespace std
static unsigned char min() throw()
{ return 0; }
static unsigned char max() throw()
- { return __glibcpp_unsigned_char_max; }
+ { return __SCHAR_MAX__ * 2U + 1; }
- static const int digits = __glibcpp_unsigned_char_digits;
- static const int digits10 = __glibcpp_unsigned_char_digits10;
+ static const int digits = __glibcpp_digits10 (unsigned char);
+ static const int digits10 = __glibcpp_digits10 (unsigned char);
static const bool is_signed = false;
static const bool is_integer = true;
static const bool is_exact = true;
@@ -809,23 +418,19 @@ namespace std
static const float_round_style round_style = round_toward_zero;
};
-#undef __glibcpp_unsigned_char_max
-#undef __glibcpp_unsigned_char_digits
-#undef __glibcpp_unsigned_char_digits10
-
template<>
struct numeric_limits<wchar_t>
{
static const bool is_specialized = true;
static wchar_t min() throw()
- { return __glibcpp_wchar_t_min; }
+ { return __glibcpp_min (wchar_t); }
static wchar_t max() throw()
- { return __glibcpp_wchar_t_max; }
+ { return __glibcpp_max (wchar_t); }
- static const int digits = __glibcpp_wchar_t_digits;
- static const int digits10 = __glibcpp_wchar_t_digits10;
- static const bool is_signed = __glibcpp_wchar_t_is_signed;
+ static const int digits = __glibcpp_digits (wchar_t);
+ static const int digits10 = __glibcpp_digits10 (wchar_t);
+ static const bool is_signed = __glibcpp_signed (wchar_t);
static const bool is_integer = true;
static const bool is_exact = true;
static const int radix = 2;
@@ -863,24 +468,18 @@ namespace std
static const float_round_style round_style = round_toward_zero;
};
-#undef __glibcpp_wchar_t_min
-#undef __glibcpp_wchar_t_max
-#undef __glibcpp_wchar_t_digits
-#undef __glibcpp_wchar_t_digits10
-#undef __glibcpp_wchar_t_is_signed
-
template<>
struct numeric_limits<short>
{
static const bool is_specialized = true;
static short min() throw()
- { return __glibcpp_signed_short_min; }
+ { return -__SHRT_MAX__ - 1; }
static short max() throw()
- { return __glibcpp_signed_short_max; }
+ { return __SHRT_MAX__; }
- static const int digits = __glibcpp_signed_short_digits;
- static const int digits10 = __glibcpp_signed_short_digits10;
+ static const int digits = __glibcpp_digits (short);
+ static const int digits10 = __glibcpp_digits10 (short);
static const bool is_signed = true;
static const bool is_integer = true;
static const bool is_exact = true;
@@ -919,11 +518,6 @@ namespace std
static const float_round_style round_style = round_toward_zero;
};
-#undef __glibcpp_signed_short_min
-#undef __glibcpp_signed_short_max
-#undef __glibcpp_signed_short_digits
-#undef __glibcpp_signed_short_digits10
-
template<>
struct numeric_limits<unsigned short>
{
@@ -932,10 +526,10 @@ namespace std
static unsigned short min() throw()
{ return 0; }
static unsigned short max() throw()
- { return __glibcpp_unsigned_short_max; }
+ { return __SHRT_MAX__ * 2U + 1; }
- static const int digits = __glibcpp_unsigned_short_digits;
- static const int digits10 = __glibcpp_unsigned_short_digits10;
+ static const int digits = __glibcpp_digits (unsigned short);
+ static const int digits10 = __glibcpp_digits10 (unsigned short);
static const bool is_signed = false;
static const bool is_integer = true;
static const bool is_exact = true;
@@ -974,22 +568,18 @@ namespace std
static const float_round_style round_style = round_toward_zero;
};
-#undef __glibcpp_unsigned_short_max
-#undef __glibcpp_unsigned_short_digits
-#undef __glibcpp_unsigned_short_digits10
-
template<>
struct numeric_limits<int>
{
static const bool is_specialized = true;
static int min() throw()
- { return __glibcpp_signed_int_min; }
+ { return -__INT_MAX__ - 1; }
static int max() throw()
- { return __glibcpp_signed_int_max; }
+ { return __INT_MAX__; }
- static const int digits = __glibcpp_signed_int_digits;
- static const int digits10 = __glibcpp_signed_int_digits10;
+ static const int digits = __glibcpp_digits (int);
+ static const int digits10 = __glibcpp_digits10 (int);
static const bool is_signed = true;
static const bool is_integer = true;
static const bool is_exact = true;
@@ -1028,11 +618,6 @@ namespace std
static const float_round_style round_style = round_toward_zero;
};
-#undef __glibcpp_signed_int_min
-#undef __glibcpp_signed_int_max
-#undef __glibcpp_signed_int_digits
-#undef __glibcpp_signed_int_digits10
-
template<>
struct numeric_limits<unsigned int>
{
@@ -1040,11 +625,11 @@ namespace std
static unsigned int min() throw()
{ return 0; }
- static unsigned int max() throw()
- { return __glibcpp_unsigned_int_max; }
+ static unsigned int max() throw()
+ { return __INT_MAX__ * 2U + 1; }
- static const int digits = __glibcpp_unsigned_int_digits;
- static const int digits10 = __glibcpp_unsigned_int_digits10;
+ static const int digits = __glibcpp_digits (unsigned int);
+ static const int digits10 = __glibcpp_digits10 (unsigned int);
static const bool is_signed = false;
static const bool is_integer = true;
static const bool is_exact = true;
@@ -1083,22 +668,18 @@ namespace std
static const float_round_style round_style = round_toward_zero;
};
-#undef __glibcpp_unsigned_int_max
-#undef __glibcpp_unsigned_int_digits
-#undef __glibcpp_unsigned_int_digits10
-
template<>
struct numeric_limits<long>
{
static const bool is_specialized = true;
static long min() throw()
- { return __glibcpp_signed_long_min; }
+ { return -__LONG_MAX__ - 1; }
static long max() throw()
- { return __glibcpp_signed_long_max; }
+ { return __LONG_MAX__; }
- static const int digits = __glibcpp_signed_long_digits;
- static const int digits10 = __glibcpp_signed_long_digits10;
+ static const int digits = __glibcpp_digits (long);
+ static const int digits10 = __glibcpp_digits10 (long);
static const bool is_signed = true;
static const bool is_integer = true;
static const bool is_exact = true;
@@ -1137,11 +718,6 @@ namespace std
static const float_round_style round_style = round_toward_zero;
};
-#undef __glibcpp_signed_long_min
-#undef __glibcpp_signed_long_max
-#undef __glibcpp_signed_long_digits
-#undef __glibcpp_signed_long_digits10
-
template<>
struct numeric_limits<unsigned long>
{
@@ -1150,10 +726,10 @@ namespace std
static unsigned long min() throw()
{ return 0; }
static unsigned long max() throw()
- { return __glibcpp_unsigned_long_max; }
+ { return __LONG_MAX__ * 2UL + 1; }
- static const int digits = __glibcpp_unsigned_long_digits;
- static const int digits10 = __glibcpp_unsigned_long_digits10;
+ static const int digits = __glibcpp_digits (unsigned long);
+ static const int digits10 = __glibcpp_digits10 (unsigned long);
static const bool is_signed = false;
static const bool is_integer = true;
static const bool is_exact = true;
@@ -1192,22 +768,18 @@ namespace std
static const float_round_style round_style = round_toward_zero;
};
-#undef __glibcpp_unsigned_long_max
-#undef __glibcpp_unsigned_long_digits
-#undef __glibcpp_unsigned_long_digits10
-
template<>
struct numeric_limits<long long>
{
static const bool is_specialized = true;
-
+
static long long min() throw()
- { return __glibcpp_signed_long_long_min; }
+ { return -__LONG_LONG_MAX__ - 1; }
static long long max() throw()
- { return __glibcpp_signed_long_long_max; }
-
- static const int digits = __glibcpp_signed_long_long_digits;
- static const int digits10 = __glibcpp_signed_long_long_digits10;
+ { return __LONG_LONG_MAX__; }
+
+ static const int digits = __glibcpp_digits (long long);
+ static const int digits10 = __glibcpp_digits10 (long long);
static const bool is_signed = true;
static const bool is_integer = true;
static const bool is_exact = true;
@@ -1216,18 +788,18 @@ namespace std
{ return 0; }
static long long round_error() throw()
{ return 0; }
-
+
static const int min_exponent = 0;
static const int min_exponent10 = 0;
static const int max_exponent = 0;
static const int max_exponent10 = 0;
-
+
static const bool has_infinity = false;
static const bool has_quiet_NaN = false;
static const bool has_signaling_NaN = false;
static const float_denorm_style has_denorm = denorm_absent;
static const bool has_denorm_loss = false;
-
+
static long long infinity() throw()
{ return static_cast<long long>(0); }
static long long quiet_NaN() throw()
@@ -1236,7 +808,7 @@ namespace std
{ return static_cast<long long>(0); }
static long long denorm_min() throw()
{ return static_cast<long long>(0); }
-
+
static const bool is_iec559 = true;
static const bool is_bounded = true;
static const bool is_modulo = true;
@@ -1246,11 +818,6 @@ namespace std
static const float_round_style round_style = round_toward_zero;
};
-#undef __glibcpp_signed_long_long_min
-#undef __glibcpp_signed_long_long_max
-#undef __glibcpp_signed_long_long_digits
-#undef __glibcpp_signed_long_long_digits10
-
template<>
struct numeric_limits<unsigned long long>
{
@@ -1259,10 +826,10 @@ namespace std
static unsigned long long min() throw()
{ return 0; }
static unsigned long long max() throw()
- { return __glibcpp_unsigned_long_long_max; }
+ { return __LONG_LONG_MAX__ * 2ULL + 1; }
- static const int digits = __glibcpp_unsigned_long_long_digits;
- static const int digits10 = __glibcpp_unsigned_long_long_digits10;
+ static const int digits = __glibcpp_digits (unsigned long long);
+ static const int digits10 = __glibcpp_digits10 (unsigned long long);
static const bool is_signed = false;
static const bool is_integer = true;
static const bool is_exact = true;
@@ -1301,10 +868,6 @@ namespace std
static const float_round_style round_style = round_toward_zero;
};
-#undef __glibcpp_unsigned_long_long_max
-#undef __glibcpp_unsigned_long_long_digits
-#undef __glibcpp_unsigned_long_long_digits10
-
template<>
struct numeric_limits<float>
{
@@ -1351,7 +914,7 @@ namespace std
static const bool is_iec559 = has_infinity && has_quiet_NaN;
static const bool is_bounded = true;
- static const bool is_modulo = __glibcpp_float_is_modulo;
+ static const bool is_modulo = false;
static const bool traps = __glibcpp_float_traps;
static const bool tinyness_before = __glibcpp_float_tinyness_before;
@@ -1359,7 +922,6 @@ namespace std
};
#undef __glibcpp_float_has_denorm_loss
-#undef __glibcpp_float_is_modulo
#undef __glibcpp_float_traps
#undef __glibcpp_float_tinyness_before
@@ -1409,7 +971,7 @@ namespace std
static const bool is_iec559 = has_infinity && has_quiet_NaN;
static const bool is_bounded = true;
- static const bool is_modulo = __glibcpp_double_is_modulo;
+ static const bool is_modulo = false;
static const bool traps = __glibcpp_double_traps;
static const bool tinyness_before = __glibcpp_double_tinyness_before;
@@ -1417,11 +979,9 @@ namespace std
};
#undef __glibcpp_double_has_denorm_loss
-#undef __glibcpp_double_is_modulo
#undef __glibcpp_double_traps
#undef __glibcpp_double_tinyness_before
-
-
+
template<>
struct numeric_limits<long double>
{
@@ -1459,7 +1019,7 @@ namespace std
= __glibcpp_long_double_has_denorm_loss;
static long double infinity() throw()
- { return __builtin_huge_vall (); }
+ { return __builtin_huge_vall (); }
static long double quiet_NaN() throw()
{ return __builtin_nanl (""); }
static long double signaling_NaN() throw()
@@ -1469,18 +1029,23 @@ namespace std
static const bool is_iec559 = has_infinity && has_quiet_NaN;
static const bool is_bounded = true;
- static const bool is_modulo = __glibcpp_long_double_is_modulo;
+ static const bool is_modulo = false;
- static const bool traps = __glibcpp_long_double_traps;
+ static const bool traps = __glibcpp_long_double_traps;
static const bool tinyness_before = __glibcpp_long_double_tinyness_before;
static const float_round_style round_style = round_to_nearest;
};
#undef __glibcpp_long_double_has_denorm_loss
-#undef __glibcpp_long_double_is_modulo
#undef __glibcpp_long_double_traps
#undef __glibcpp_long_double_tinyness_before
} // namespace std
+#undef __glibcpp_signed
+#undef __glibcpp_min
+#undef __glibcpp_max
+#undef __glibcpp_digits
+#undef __glibcpp_digits10
+
#endif // _CPP_NUMERIC_LIMITS
diff --git a/libstdc++-v3/testsuite/18_support/numeric_limits.cc b/libstdc++-v3/testsuite/18_support/numeric_limits.cc
index 65fc8d03c57b4965f87ab0470084edb476038697..6eb0134976665c808519efd2b54e35f22c96beb7 100644
--- a/libstdc++-v3/testsuite/18_support/numeric_limits.cc
+++ b/libstdc++-v3/testsuite/18_support/numeric_limits.cc
@@ -284,14 +284,26 @@ bool test03()
bool test = true;
VERIFY( std::numeric_limits<bool>::digits10 == 0 );
- VERIFY( __glibcpp_s8_digits10 == 2 );
- VERIFY( __glibcpp_u8_digits10 == 2 );
- VERIFY( __glibcpp_s16_digits10 == 4 );
- VERIFY( __glibcpp_u16_digits10 == 4 );
- VERIFY( __glibcpp_s32_digits10 == 9 );
- VERIFY( __glibcpp_u32_digits10 == 9 );
- VERIFY( __glibcpp_s64_digits10 == 18 );
- VERIFY( __glibcpp_u64_digits10 == 19 );
+ if (__CHAR_BIT__ == 8)
+ {
+ VERIFY( std::numeric_limits<signed char>::digits10 == 2 );
+ VERIFY( std::numeric_limits<unsigned char>::digits10 == 2 );
+ }
+ if (__CHAR_BIT__ * sizeof(short) == 16)
+ {
+ VERIFY( std::numeric_limits<signed short>::digits10 == 4 );
+ VERIFY( std::numeric_limits<unsigned short>::digits10 == 4 );
+ }
+ if (__CHAR_BIT__ * sizeof(int) == 32)
+ {
+ VERIFY( std::numeric_limits<signed int>::digits10 == 9 );
+ VERIFY( std::numeric_limits<unsigned int>::digits10 == 9 );
+ }
+ if (__CHAR_BIT__ * sizeof(long long) == 64)
+ {
+ VERIFY( std::numeric_limits<signed long long>::digits10 == 18 );
+ VERIFY( std::numeric_limits<unsigned long long>::digits10 == 19 );
+ }
#ifdef DEBUG_ASSERT
assert(test);