summaryrefslogtreecommitdiff
path: root/libc/sysdeps/linux/sh/bits/mathdef.h
diff options
context:
space:
mode:
Diffstat (limited to 'libc/sysdeps/linux/sh/bits/mathdef.h')
-rw-r--r--libc/sysdeps/linux/sh/bits/mathdef.h63
1 files changed, 44 insertions, 19 deletions
diff --git a/libc/sysdeps/linux/sh/bits/mathdef.h b/libc/sysdeps/linux/sh/bits/mathdef.h
index c5fe7d7e8..64cc79bc2 100644
--- a/libc/sysdeps/linux/sh/bits/mathdef.h
+++ b/libc/sysdeps/linux/sh/bits/mathdef.h
@@ -1,50 +1,75 @@
-/* Copyright (C) 1997, 1998, 1999 Free Software Foundation, Inc.
+/* Copyright (C) 1997, 1998, 1999, 2000 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 Library General Public License as
- published by the Free Software Foundation; either version 2 of the
- License, or (at your option) any later version.
+ 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
- Library General Public License for more details.
+ Lesser General Public License for more details.
- You should have received a copy of the GNU Library General Public
- License along with the GNU C Library; see the file COPYING.LIB. If not,
- write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- Boston, MA 02111-1307, USA. */
+ 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. */
#if !defined _MATH_H && !defined _COMPLEX_H
# error "Never use <bits/mathdef.h> directly; include <math.h> instead"
#endif
-#if defined __USE_ISOC9X && defined _MATH_H && !defined _MATH_H_MATHDEF
+
+/* FIXME! This file describes properties of the compiler, not the machine;
+ it should not be part of libc!
+
+ FIXME! This file does not deal with the -fshort-double option of
+ gcc! */
+
+#if defined __USE_ISOC99 && defined _MATH_H && !defined _MATH_H_MATHDEF
# define _MATH_H_MATHDEF 1
-/* Normally, there is no long double type and the `float' and `double'
- expressions are evaluated as `double'. */
+# ifdef __GNUC__
+# if __STDC__ == 1
+
+/* In GNU or ANSI mode, gcc leaves `float' expressions as-is. */
+typedef float float_t; /* `float' expressions are evaluated as
+ `float'. */
+typedef double double_t; /* `double' expressions are evaluated as
+ `double'. */
+
+/* Define `INFINITY' as value of type `float'. */
+# define INFINITY HUGE_VALF
+
+# else
+
+/* For `gcc -traditional', `float' expressions are evaluated as `double'. */
typedef double float_t; /* `float' expressions are evaluated as
`double'. */
typedef double double_t; /* `double' expressions are evaluated as
`double'. */
-/* Signal that both types are `double'. */
-# define FLT_EVAL_METHOD 1
+/* Define `INFINITY' as value of type `float'. */
+# define INFINITY HUGE_VALF
+
+# endif
+# else
+
+/* Wild guess at types for float_t and double_t. */
+typedef double float_t;
+typedef double double_t;
/* Define `INFINITY' as value of type `float'. */
-# define INFINITY HUGE_VALF
+# define INFINITY HUGE_VALF
+# endif
/* The values returned by `ilogb' for 0 and NaN respectively. */
# define FP_ILOGB0 0x80000001
# define FP_ILOGBNAN 0x7fffffff
-/* Number of decimal digits for the `double' type. */
-# define DECIMAL_DIG 15
-
-#endif /* ISO C9X */
+#endif /* ISO C99 */
#ifndef __NO_LONG_DOUBLE_MATH
/* Signal that we do not really have a `long double'. The disables the