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103 lines
3.2 KiB
C
103 lines
3.2 KiB
C
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/* Copyright (C) 1997 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public License as
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published by the Free Software Foundation; either version 2 of the
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License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with the GNU C Library; see the file COPYING.LIB. If not,
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write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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/*
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* ISO C 9X: 7.8 Complex arithmetic <complex.h>
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*/
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#ifndef _COMPLEX_H
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#define _COMPLEX_H 1
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/* We might need to add support for more compilers here. But once ISO
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C 9X is out hopefully all maintained compilers will provide the data
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types `float complex' and `double complex'. */
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#if (__GNUC__ == 2 && __GNUC_MINOR__ >= 7) || __GNUC__ > 2
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# define complex __complex__
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#endif
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/* Narrowest imaginary unit. This depends on the floating-point
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evaluation method.
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XXX This probably has to go into a gcc related file. */
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#define _Imaginary_I (DBL_EPSISON * 1.0i)
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/* Another more descriptive name is `I'. */
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#undef I
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#define I _Imaginary_I
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/* Optimization aids. This is not yet implemented in gcc and yonce it
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is this will probably be available in a gcc header. */
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#define CX_LIMITED_RANGE_ON
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#define CX_LIMITED_RANGE_OFF
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#define CX_LIMITED_RANGE_DEFAULT
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/* The file <cmathcalls.h> contains the prototypes for all the actual
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math functions. These macros are used for those prototypes, so
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we can easily declare each function as both `name' and `__name',
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and can declare the float versions `namef' and `__namef'. */
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#define __MATHCALL(function, args) \
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__MATHDECL (_Mdouble_complex_,function, args)
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#define __MATHDECL(type, function, args) \
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__MATHDECL_1(type, function, args); \
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__MATHDECL_1(type, __CONCAT(__,function), args)
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#define __MATHDECL_1(type, function, args) \
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extern type __MATH_PRECNAME(function) args
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#define _Mdouble_ double
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#define __MATH_PRECNAME(name) name
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#include <cmathcalls.h>
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#undef _Mdouble_
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#undef __MATH_PRECNAME
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/* Now the float versions. */
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#ifndef _Mfloat_
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#define _Mfloat_ float
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#endif
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#define _Mdouble_ _Mfloat_
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#ifdef __STDC__
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#define __MATH_PRECNAME(name) name##f
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#else
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#define __MATH_PRECNAME(name) name/**/f
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#endif
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#include <cmathcalls.h>
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#undef _Mdouble_
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#undef __MATH_PRECNAME
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/* And the long double versions. It is non-critical to define them
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here unconditionally since `long double' is required in ISO C 9X. */
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#ifndef _Mlong_double_
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#define _Mlong_double_ long double
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#endif
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#define _Mdouble_ _Mlong_double_
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#ifdef __STDC__
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#define __MATH_PRECNAME(name) name##l
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#else
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#define __MATH_PRECNAME(name) name/**/l
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#endif
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#include <cmathcalls.h>
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#undef _Mdouble_
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#undef __MATH_PRECNAME
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#undef __MATHDECL_1
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#undef __MATHDECL
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#undef __MATHCALL
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#endif /* complex.h */
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