/* Copyright (C) 1997-2012 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, see . */ #if !defined _MATH_H && !defined _COMPLEX_H # error "Never use directly; include instead" #endif /* FIXME! This file describes properties of the compiler, not the machine; it should not be part of libc! */ #if defined __USE_ISOC99 && defined _MATH_H && !defined _MATH_H_MATHDEF # define _MATH_H_MATHDEF 1 # ifdef __GNUC__ /* In GNU or ANSI mode, gcc leaves `float' expressions as-is. */ typedef float float_t; typedef double double_t; # 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 && MATH_H */ #if defined _COMPLEX_H && !defined _COMPLEX_H_MATHDEF # define _COMPLEX_H_MATHDEF 1 # if defined(__GNUC__) && !__GNUC_PREREQ(3,4) /* Due to an ABI change, we need to remap the complex float symbols. */ # define _Mdouble_ float # define __MATHCALL(function, args) \ __MATHDECL (_Complex float, function, args) # define __MATHDECL(type, function, args) \ __MATHDECL_1(type, function##f, args, __c1_##function##f); \ __MATHDECL_1(type, __##function##f, args, __c1_##function##f) # define __MATHDECL_1(type, function, args, alias) \ extern type function args __asm__(#alias) __THROW # include # undef _Mdouble_ # undef __MATHCALL # undef __MATHDECL # undef __MATHDECL_1 # endif /* GNUC before 3.4 */ #endif /* COMPLEX_H */