/* Copyright (C) 1997,1998,1999,2000,2003,2004,2006 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. */ #include <features.h> #if !defined _MATH_H && !defined _COMPLEX_H # error "Never use <bits/mathdef.h> directly; include <math.h> instead" #endif /* 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 # 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'. */ # 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'. */ # endif # else /* Wild guess at types for float_t and double_t. */ typedef double float_t; typedef double double_t; # endif /* The values returned by `ilogb' for 0 and NaN respectively. */ # define FP_ILOGB0 (-2147483647) # define FP_ILOGBNAN (2147483647) #endif /* ISO C99 */ #ifdef __UCLIBC_HAS_LONG_DOUBLE_MATH__ #include <bits/wordsize.h> /* Signal that we do not really have a `long double'. The disables the declaration of all the `long double' function variants. */ # if __WORDSIZE == 32 # undef __UCLIBC_HAS_LONG_DOUBLE_MATH__ # endif /* __WORDSIZE == 32 */ #endif /* __UCLIBC_HAS_LONG_DOUBLE_MATH__ */