1 /* Copyright (C) 1997,1998,1999,2000,2003,2004,2006 2 Free Software Foundation, Inc. 3 This file is part of the GNU C Library. 4 5 The GNU C Library is free software; you can redistribute it and/or 6 modify it under the terms of the GNU Lesser General Public 7 License as published by the Free Software Foundation; either 8 version 2.1 of the License, or (at your option) any later version. 9 10 The GNU C Library is distributed in the hope that it will be useful, 11 but WITHOUT ANY WARRANTY; without even the implied warranty of 12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 13 Lesser General Public License for more details. 14 15 You should have received a copy of the GNU Lesser General Public 16 License along with the GNU C Library; if not, see 17 <http://www.gnu.org/licenses/>. */ 18 19 #include <features.h> 20 21 #if !defined _MATH_H && !defined _COMPLEX_H 22 # error "Never use <bits/mathdef.h> directly; include <math.h> instead" 23 #endif 24 25 26 /* FIXME! This file describes properties of the compiler, not the machine; 27 it should not be part of libc! 28 29 FIXME! This file does not deal with the -fshort-double option of 30 gcc! */ 31 32 #if defined __USE_ISOC99 && defined _MATH_H && !defined _MATH_H_MATHDEF 33 # define _MATH_H_MATHDEF 1 34 35 /* PowerPC has both `float' and `double' arithmetic. */ 36 typedef float float_t; /* `float' expressions are evaluated as 37 `float'. */ 38 typedef double double_t; /* `double' expressions are evaluated as 39 `double'. */ 40 41 /* The values returned by `ilogb' for 0 and NaN respectively. */ 42 # define FP_ILOGB0 (-2147483647) 43 # define FP_ILOGBNAN (2147483647) 44 45 #endif /* ISO C99 */ 46 47 #if !defined __NO_LONG_DOUBLE_MATH && !defined __UCLIBC_HAS_LONG_DOUBLE_MATH__ 48 # define __NO_LONG_DOUBLE_MATH 1 49 #endif 50