* math/Makefile (headers): Add bits/huge_valf.h, bits/huge_vall.h, and bits/inf.h. * math/math.h: Include them.

        * sysdeps/alpha/fpu/bits/mathdef.h, sysdeps/arm/fpu/bits/mathdef.h,
        sysdeps/generic/bits/mathdef.h, sysdeps/i386/fpu/bits/mathdef.h,
        sysdeps/ia64/fpu/bits/mathdef.h, sysdeps/m68k/fpu/bits/mathdef.h,
        sysdeps/mips/fpu/bits/mathdef.h, sysdeps/powerpc/fpu/bits/mathdef.h,
        sysdeps/sh/sh4/fpu/bits/mathdef.h, sysdeps/sparc/fpu/bits/mathdef.h,
        sysdeps/x86_64/fpu/bits/mathdef.h: Remove INFINITY.

        * sysdeps/arm/bits/huge_val.h (HUGE_VAL): Use __builtin_huge_val.
        (HUGE_VALF, HUGE_VALL): Remove.
        * sysdeps/ieee754/bits/huge_val.h: Likewise.
        * sysdeps/sh/bits/huge_val.h: Likewise.

        * sysdeps/generic/bits/huge_val.h (HUGE_VAL): Use __builtin_huge_val.
        * sysdeps/generic/bits/huge_valf.h: New file.
        * sysdeps/generic/bits/huge_vall.h: New file.
        * sysdeps/generic/bits/inf.h: New file.
        * sysdeps/ieee754/bits/huge_valf.h: New file.
        * sysdeps/ieee754/bits/inf.h: New file.
        * sysdeps/i386/bits/huge_val.h: Remove file.
        * sysdeps/i386/bits/huge_vall.h: New file.
        * sysdeps/ia64/bits/huge_val.h: Remove file.
        * sysdeps/ia64/bits/huge_vall.h: New file.
        * sysdeps/ieee754/ldbl-128/bits/huge_vall.h: New file.
        * sysdeps/m68k/bits/huge_val.h: Remove file.
        * sysdeps/m68k/bits/huge_vall.h: New file.
        * sysdeps/s390/bits/huge_val.h: Remove file.
        * sysdeps/sh/sh4/fpu/bits/huge_val.h: Remove file.
        * sysdeps/sparc/bits/huge_vall.h: New file.
        * sysdeps/sparc/sparc32/fpu/bits/huge_val.h: Remove file.
        * sysdeps/sparc/sparc64/fpu/bits/huge_val.h: Remove file.

        * sysdeps/ieee754/bits/nan.h (NAN): Use __builtin_nanf.
        * sysdeps/mips/bits/nan.h (NAN): Likewise.
2004-03-15  Richard Henderson  <rth@redhat.com>

	* math/Makefile (headers): Add bits/huge_valf.h, bits/huge_vall.h,
	and bits/inf.h.
	* math/math.h: Include them.

	* sysdeps/alpha/fpu/bits/mathdef.h, sysdeps/arm/fpu/bits/mathdef.h,
	sysdeps/generic/bits/mathdef.h, sysdeps/i386/fpu/bits/mathdef.h,
	sysdeps/ia64/fpu/bits/mathdef.h, sysdeps/m68k/fpu/bits/mathdef.h,
	sysdeps/mips/fpu/bits/mathdef.h, sysdeps/powerpc/fpu/bits/mathdef.h,
	sysdeps/sh/sh4/fpu/bits/mathdef.h, sysdeps/sparc/fpu/bits/mathdef.h,
	sysdeps/x86_64/fpu/bits/mathdef.h: Remove INFINITY.

	* sysdeps/arm/bits/huge_val.h (HUGE_VAL): Use __builtin_huge_val.
	(HUGE_VALF, HUGE_VALL): Remove.
	* sysdeps/ieee754/bits/huge_val.h: Likewise.
	* sysdeps/sh/bits/huge_val.h: Likewise.

	* sysdeps/generic/bits/huge_val.h (HUGE_VAL): Use __builtin_huge_val.
	* sysdeps/generic/bits/huge_valf.h: New file.
	* sysdeps/generic/bits/huge_vall.h: New file.
	* sysdeps/generic/bits/inf.h: New file.
	* sysdeps/ieee754/bits/huge_valf.h: New file.
	* sysdeps/ieee754/bits/inf.h: New file.
	* sysdeps/i386/bits/huge_val.h: Remove file.
	* sysdeps/i386/bits/huge_vall.h: New file.
	* sysdeps/ia64/bits/huge_val.h: Remove file.
	* sysdeps/ia64/bits/huge_vall.h: New file.
	* sysdeps/ieee754/ldbl-128/bits/huge_vall.h: New file.
	* sysdeps/m68k/bits/huge_val.h: Remove file.
	* sysdeps/m68k/bits/huge_vall.h: New file.
	* sysdeps/s390/bits/huge_val.h: Remove file.
	* sysdeps/sh/sh4/fpu/bits/huge_val.h: Remove file.
	* sysdeps/sparc/bits/huge_vall.h: New file.
	* sysdeps/sparc/sparc32/fpu/bits/huge_val.h: Remove file.
	* sysdeps/sparc/sparc64/fpu/bits/huge_val.h: Remove file.

	* sysdeps/ieee754/bits/nan.h (NAN): Use __builtin_nanf.
	* sysdeps/mips/bits/nan.h (NAN): Likewise.

4 files changed, 98 insertions, 59 deletions

diff --git a/sysdeps/ieee754/bits/huge_val.h b/sysdeps/ieee754/bits/huge_val.h
index b33974364c..11ca11f18e 100644
--- a/sysdeps/ieee754/bits/huge_val.h
+++ b/sysdeps/ieee754/bits/huge_val.h
@@ -1,6 +1,7 @@
-/* `HUGE_VAL' constants for IEEE 754 machines (where it is infinity).
+/* `HUGE_VAL' constant for IEEE 754 machines (where it is infinity).
    Used by <stdlib.h> and <math.h> functions for overflow.
-   Copyright (C) 1992, 1995, 1996, 1997, 1999, 2000 Free Software Foundation, Inc.
+   Copyright (C) 1992, 1995, 1996, 1997, 1999, 2000, 2004
+   Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
@@ -22,25 +23,19 @@
 # error "Never use <bits/huge_val.h> directly; include <math.h> instead."
 #endif
 
-#include <features.h>
-
 /* IEEE positive infinity (-HUGE_VAL is negative infinity).  */
 
-#ifdef	__GNUC__
-
-# if __GNUC_PREREQ(2,96)
-
-#  define HUGE_VAL (__extension__ 0x1.0p2047)
+#if __GNUC_PREREQ(3,3)
+# define HUGE_VAL	(__builtin_huge_val())
+#elif __GNUC_PREREQ(2,96)
+# define HUGE_VAL	(__extension__ 0x1.0p2047)
+#elif defined __GNUC__
 
-# else
-
-#  define HUGE_VAL \
+# define HUGE_VAL \
   (__extension__							      \
    ((union { unsigned __l __attribute__((__mode__(__DI__))); double __d; })   \
     { __l: 0x7ff0000000000000ULL }).__d)
 
-# endif
-
 #else /* not GCC */
 
 # include <endian.h>
@@ -58,46 +53,3 @@ static __huge_val_t __huge_val = { __HUGE_VAL_bytes };
 # define HUGE_VAL	(__huge_val.__d)
 
 #endif	/* GCC.  */
-
-
-/* ISO C99 extensions: (float) HUGE_VALF and (long double) HUGE_VALL.  */
-
-#ifdef __USE_ISOC99
-
-# ifdef __GNUC__
-
-#  if __GNUC_PREREQ(2,96)
-
-#   define HUGE_VALF (__extension__ 0x1.0p255f)
-
-#  else
-
-#   define HUGE_VALF \
-  (__extension__							      \
-   ((union { unsigned __l __attribute__((__mode__(__SI__))); float __d; })    \
-    { __l: 0x7f800000UL }).__d)
-
-#  endif
-
-# else /* not GCC */
-
-typedef union { unsigned char __c[4]; float __f; } __huge_valf_t;
-
-#  if __BYTE_ORDER == __BIG_ENDIAN
-#   define __HUGE_VALF_bytes	{ 0x7f, 0x80, 0, 0 }
-#  endif
-#  if __BYTE_ORDER == __LITTLE_ENDIAN
-#   define __HUGE_VALF_bytes	{ 0, 0, 0x80, 0x7f }
-#  endif
-
-static __huge_valf_t __huge_valf = { __HUGE_VALF_bytes };
-#  define HUGE_VALF	(__huge_valf.__f)
-
-# endif	/* GCC.  */
-
-
-/* Generally there is no separate `long double' format and it is the
-   same as `double'.  */
-# define HUGE_VALL HUGE_VAL
-
-#endif /* __USE_ISOC99.  */
diff --git a/sysdeps/ieee754/bits/huge_valf.h b/sysdeps/ieee754/bits/huge_valf.h
new file mode 100644
index 0000000000..1785342cda
--- /dev/null
+++ b/sysdeps/ieee754/bits/huge_valf.h
@@ -0,0 +1,53 @@
+/* `HUGE_VALF' constant for IEEE 754 machines (where it is infinity).
+   Used by <stdlib.h> and <math.h> functions for overflow.
+   Copyright (C) 1992, 1995, 1996, 1997, 1999, 2000, 2004
+   Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#ifndef _MATH_H
+# error "Never use <bits/huge_valf.h> directly; include <math.h> instead."
+#endif
+
+/* IEEE positive infinity (-HUGE_VAL is negative infinity).  */
+
+#if __GNUC_PREREQ(3,3)
+# define HUGE_VALF	(__builtin_huge_valf())
+#elif __GNUC_PREREQ(2,96)
+# define HUGE_VALF	(__extension__ 0x1.0p255f)
+#elif defined __GNUC__
+
+#   define HUGE_VALF \
+  (__extension__							      \
+   ((union { unsigned __l __attribute__((__mode__(__SI__))); float __d; })    \
+    { __l: 0x7f800000UL }).__d)
+
+#else /* not GCC */
+
+typedef union { unsigned char __c[4]; float __f; } __huge_valf_t;
+
+# if __BYTE_ORDER == __BIG_ENDIAN
+#  define __HUGE_VALF_bytes	{ 0x7f, 0x80, 0, 0 }
+# endif
+# if __BYTE_ORDER == __LITTLE_ENDIAN
+#  define __HUGE_VALF_bytes	{ 0, 0, 0x80, 0x7f }
+# endif
+
+static __huge_valf_t __huge_valf = { __HUGE_VALF_bytes };
+# define HUGE_VALF	(__huge_valf.__f)
+
+#endif	/* GCC.  */
diff --git a/sysdeps/ieee754/bits/inf.h b/sysdeps/ieee754/bits/inf.h
new file mode 100644
index 0000000000..1619f756ed
--- /dev/null
+++ b/sysdeps/ieee754/bits/inf.h
@@ -0,0 +1,30 @@
+/* `INFINITY' constant for IEEE 754 machines.
+   Copyright (C) 2004 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#ifndef _MATH_H
+# error "Never use <bits/inf.h> directly; include <math.h> instead."
+#endif
+
+/* IEEE positive infinity.  */
+
+#if __GNUC_PREREQ(3,3)
+# define INFINITY	(__builtin_inff())
+#else
+# define INFINITY	HUGE_VALF
+#endif
diff --git a/sysdeps/ieee754/bits/nan.h b/sysdeps/ieee754/bits/nan.h
index 6d88b551b1..95de220e97 100644
--- a/sysdeps/ieee754/bits/nan.h
+++ b/sysdeps/ieee754/bits/nan.h
@@ -1,5 +1,5 @@
 /* `NAN' constant for IEEE 754 machines.
-   Copyright (C) 1992, 1996, 1997, 1999 Free Software Foundation, Inc.
+   Copyright (C) 1992, 1996, 1997, 1999, 2004 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
@@ -24,7 +24,11 @@
 
 /* IEEE Not A Number.  */
 
-#ifdef	__GNUC__
+#if __GNUC_PREREQ(3,3)
+
+# define NAN	(__builtin_nanf(""))
+
+#elif defined__GNUC__
 
 # define NAN \
   (__extension__                                                            \