diff options
Diffstat (limited to 'libc/sysdeps/linux/sh/bits/mathdef.h')
| -rw-r--r-- | libc/sysdeps/linux/sh/bits/mathdef.h | 63 |
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 |