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-rw-r--r--bits/huge_val.h9
-rw-r--r--bits/huge_valf.h29
-rw-r--r--bits/huge_vall.h29
-rw-r--r--bits/inf.h33
-rw-r--r--bits/mathdef.h6
5 files changed, 98 insertions, 8 deletions
diff --git a/bits/huge_val.h b/bits/huge_val.h
index 545b8a6..e102ac3 100644
--- a/bits/huge_val.h
+++ b/bits/huge_val.h
@@ -1,6 +1,6 @@
/* Stub `HUGE_VAL' constant.
Used by <stdlib.h> and <math.h> functions for overflow.
- Copyright (C) 1992, 1996, 1997 Free Software Foundation, Inc.
+ Copyright (C) 1992, 1996, 1997, 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
@@ -22,5 +22,8 @@
# error "Never use <bits/huge_val.h> directly; include <math.h> instead."
#endif
-
-#define HUGE_VAL 1e37
+#if __GNUC_PREREQ(3,3)
+# define HUGE_VAL (__builtin_huge_val())
+#else
+# define HUGE_VAL 1e37
+#endif
diff --git a/bits/huge_valf.h b/bits/huge_valf.h
new file mode 100644
index 0000000..4cb5ebd
--- /dev/null
+++ b/bits/huge_valf.h
@@ -0,0 +1,29 @@
+/* Stub `HUGE_VALF' constant.
+ Used by <stdlib.h> and <math.h> functions for overflow.
+ Copyright (C) 1992, 1996, 1997, 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
+
+#if __GNUC_PREREQ(3,3)
+# define HUGE_VALF (__builtin_huge_valf())
+#else
+# define HUGE_VALF 1e37f
+#endif
diff --git a/bits/huge_vall.h b/bits/huge_vall.h
new file mode 100644
index 0000000..d5e8e22
--- /dev/null
+++ b/bits/huge_vall.h
@@ -0,0 +1,29 @@
+/* Default `HUGE_VALL' constant.
+ Used by <stdlib.h> and <math.h> functions for overflow.
+ Copyright (C) 1992, 1996, 1997, 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_vall.h> directly; include <math.h> instead."
+#endif
+
+#if __GNUC_PREREQ(3,3)
+# define HUGE_VALL (__builtin_huge_vall())
+#else
+# define HUGE_VALL ((long double) HUGE_VAL)
+#endif
diff --git a/bits/inf.h b/bits/inf.h
new file mode 100644
index 0000000..2d526ad
--- /dev/null
+++ b/bits/inf.h
@@ -0,0 +1,33 @@
+/* Default `INFINITY' constant.
+ 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
+
+/* If we don't have real infinity, then we're supposed to produce a float
+ value that overflows at translation time, which is required to produce
+ a diagnostic. GCC's __builtin_inff produces a quite nice diagnostic
+ that tells the user that the target doesn't support infinities. */
+
+#if __GNUC_PREREQ(3,3)
+# define INFINITY (__builtin_inff())
+#else
+# define INFINITY (1e9999f)
+#endif
diff --git a/bits/mathdef.h b/bits/mathdef.h
index d08dc38..00c6724 100644
--- a/bits/mathdef.h
+++ b/bits/mathdef.h
@@ -1,4 +1,4 @@
-/* Copyright (C) 1997, 1998, 1999, 2000 Free Software Foundation, Inc.
+/* Copyright (C) 1997, 1998, 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
@@ -30,10 +30,6 @@ typedef double float_t; /* `float' expressions are evaluated as
typedef double double_t; /* `double' expressions are evaluated as
`double'. */
-/* Define `INFINITY' as value of type `float'. */
-# define INFINITY HUGE_VALF
-
-
/* The values returned by `ilogb' for 0 and NaN respectively. */
# define FP_ILOGB0 (-2147483647)
# define FP_ILOGBNAN 2147483647