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2004-10-06 Jakub Jelinek <jakub@redhat.com>
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* config/os/gnu-linux/bits/os_defines.h: Define
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__glibcpp_{float,double,long_double}* macros.
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* config/cpu/x86-64/bits/cpu_limits.h (__glibcpp_long_bits): Only
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define to 64 if __x86_64__.
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* include/std/std_limits.h (__glibcpp_f*_round_error): Only define
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if not yet defined.
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--- libstdc++-v3/config/os/gnu-linux/bits/os_defines.h.jj 2002-06-03 17:33:17.000000000 +0200
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+++ libstdc++-v3/config/os/gnu-linux/bits/os_defines.h 2004-10-06 20:07:16.601101686 +0200
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@@ -73,4 +73,87 @@ typedef __loff_t __off64_t;
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#define __glibcpp_long_double_bits 64
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#endif
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+/* RHEL3 hack. */
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+#if defined(__GNUC__) && !defined(__INTEL_COMPILER) && !defined(__IBMCPP__) \
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+ && (defined(__i386__) || defined(__x86_64__) || defined(__ia64__) \
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+ || defined(__s390__) || defined(__s390x__) || defined(__powerpc__) \
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+ || defined(__powerpc64__))
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+#define __glibcpp_float_has_quiet_NaN true
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+#define __glibcpp_float_has_signaling_NaN true
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+#define __glibcpp_float_has_denorm denorm_present
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+#define __glibcpp_float_has_infinity true
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+#define __glibcpp_float_round_style round_to_nearest
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+#define __glibcpp_float_is_iec559 true
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+#define __glibcpp_double_has_quiet_NaN true
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+#define __glibcpp_double_has_signaling_NaN true
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+#define __glibcpp_double_has_denorm denorm_present
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+#define __glibcpp_double_has_infinity true
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+#define __glibcpp_double_round_style round_to_nearest
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+#define __glibcpp_double_is_iec559 true
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+#define __glibcpp_long_double_has_quiet_NaN true
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+#define __glibcpp_long_double_has_signaling_NaN true
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+#define __glibcpp_long_double_has_denorm denorm_present
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+#define __glibcpp_long_double_has_infinity true
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+#define __glibcpp_long_double_round_style round_to_nearest
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+#define __glibcpp_long_double_is_iec559 true
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+
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+#define __glibcpp_f32_round_error 0.5F
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+#define __glibcpp_f64_round_error 0.5
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+#define __glibcpp_f80_round_error 0.5L
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+#define __glibcpp_f96_round_error 0.5L
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+#define __glibcpp_f128_round_error 0.5L
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+
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+#define __glibcpp_float_infinity 1.0e+40F
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+#define __glibcpp_double_infinity 1.0e+320
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+#define __glibcpp_long_double_infinity 1.0e+5000L
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+
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+#define __glibcpp_float_denorm_min 1.40129846e-45F
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+#define __glibcpp_double_denorm_min 4.9406564584124654e-324
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+
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+#define __glibcpp_float_quiet_NaN \
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+ (__extension__ ((union { unsigned int __l; float __d; }) \
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+ { __l: 0x7fc00000 }).__d)
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+#define __glibcpp_double_quiet_NaN \
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+ (__extension__ ((union { unsigned long long __l; double __d; }) \
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+ { __l: 0x7ff8000000000000ULL }).__d)
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+
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+#define __glibcpp_float_signaling_NaN \
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+ (__extension__ ({ union { unsigned int __l; float __d; } __u; \
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+ __u.__l = 0x7fa00000; \
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+ __asm ("" : : "r" (&__u) : "memory"); __u.__d; }))
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+#define __glibcpp_double_signaling_NaN \
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+ (__extension__ ({ union { unsigned long long __l; double __d; } __u; \
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+ __u.__l = 0x7ff4000000000000ULL; \
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+ __asm ("" : : "r" (&__u) : "memory"); __u.__d; }))
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+
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+#if __glibcpp_long_double_bits == 80
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+
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+#define __glibcpp_long_double_denorm_min 3.64519953188247460253e-4951L
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+#define __glibcpp_long_double_quiet_NaN \
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+ (__extension__ ({ union { unsigned long long __l[2]; \
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+ long double __d; } __u; \
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+ __u.__l[0] = 0xcULL << 60; __u.__l[1] = 0x7fff; \
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+ __u.__d; }))
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+#define __glibcpp_long_double_signaling_NaN \
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+ (__extension__ ({ union { unsigned long long __l[2]; \
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+ long double __d; } __u; \
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+ __u.__l[0] = 0xaULL << 60; __u.__l[1] = 0x7fff; \
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+ __asm ("" : : "r" (&__u) : "memory"); __u.__d; }))
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+
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+#else
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+
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+#define __glibcpp_long_double_denorm_min 4.9406564584124654e-324L
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+#define __glibcpp_long_double_quiet_NaN \
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+ (__extension__ ((union { unsigned long long __l; long double __d; }) \
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+ { __l: 0x7ff8000000000000ULL }).__d)
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+#define __glibcpp_long_double_signaling_NaN \
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+ (__extension__ ({ union { unsigned long long __l; \
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+ long double __d; } __u; \
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+ __u.__l = 0x7ff4000000000000ULL; \
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+ __asm ("" : : "r" (&__u) : "memory"); __u.__d; }))
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+
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+#endif
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+
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+#endif
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+
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#endif
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--- libstdc++-v3/config/cpu/x86-64/bits/cpu_limits.h.jj 2002-01-12 23:14:42.000000000 +0100
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+++ libstdc++-v3/config/cpu/x86-64/bits/cpu_limits.h 2004-10-06 17:13:39.369189090 +0200
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@@ -28,7 +28,9 @@
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#ifndef _GLIBCPP_CPU_LIMITS
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#define _GLIBCPP_CPU_LIMITS 1
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+#ifdef __x86_64__
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#define __glibcpp_long_bits 64
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+#endif
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#define __glibcpp_long_double_bits 80
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--- libstdc++-v3/include/std/std_limits.h.jj 2002-10-16 16:12:23.000000000 +0200
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+++ libstdc++-v3/include/std/std_limits.h 2004-10-06 19:59:26.602318867 +0200
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@@ -180,7 +180,9 @@
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#define __glibcpp_f32_digits10 6
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#define __glibcpp_f32_radix 2
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#define __glibcpp_f32_epsilon 1.19209290e-07F
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+#ifndef __glibcpp_f32_round_error
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#define __glibcpp_f32_round_error 1.0F
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+#endif
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#define __glibcpp_f32_min_exponent -125
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#define __glibcpp_f32_min_exponent10 -37
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#define __glibcpp_f32_max_exponent 128
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@@ -191,7 +193,9 @@
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#define __glibcpp_f64_digits10 15
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#define __glibcpp_f64_radix 2
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#define __glibcpp_f64_epsilon 2.2204460492503131e-16
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+#ifndef __glibcpp_f64_round_error
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#define __glibcpp_f64_round_error 1.0
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+#endif
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#define __glibcpp_f64_min_exponent -1021
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#define __glibcpp_f64_min_exponent10 -307
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#define __glibcpp_f64_max_exponent 1024
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@@ -202,7 +206,9 @@
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#define __glibcpp_f80_digits10 18
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#define __glibcpp_f80_radix 2
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#define __glibcpp_f80_epsilon 1.08420217248550443401e-19L
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+#ifndef __glibcpp_f80_round_error
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#define __glibcpp_f80_round_error 1.0L
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+#endif
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#define __glibcpp_f80_min_exponent -16381
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#define __glibcpp_f80_min_exponent10 -4931
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#define __glibcpp_f80_max_exponent 16384
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@@ -213,7 +219,9 @@
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#define __glibcpp_f96_digits10 18
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#define __glibcpp_f96_radix 2
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#define __glibcpp_f96_epsilon 1.08420217248550443401e-19L
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+#ifndef __glibcpp_f96_round_error
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#define __glibcpp_f96_round_error 1.0L
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+#endif
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#define __glibcpp_f96_min_exponent -16382
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#define __glibcpp_f96_min_exponent10 -4931
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#define __glibcpp_f96_max_exponent 16384
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@@ -224,7 +232,9 @@
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#define __glibcpp_f128_digits10 33
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#define __glibcpp_f128_radix 2
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#define __glibcpp_f128_epsilon 1.925929944387235853055977942584927319E-34L
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+#ifndef __glibcpp_f128_round_error
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#define __glibcpp_f128_round_error 1.0L
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+#endif
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#define __glibcpp_f128_min_exponent -16381
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#define __glibcpp_f128_min_exponent10 -4931
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#define __glibcpp_f128_max_exponent 16384
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