1 files changed, 102 insertions, 0 deletions
diff --git a/math/complex.h b/math/complex.h
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+++ b/math/complex.h
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+/* Copyright (C) 1997 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.
+
+   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.
+
+   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.  */
+
+/*
+ *	ISO C 9X:  7.8 Complex arithmetic	<complex.h>
+ */
+
+#ifndef _COMPLEX_H
+#define _COMPLEX_H	1
+
+/* We might need to add support for more compilers here.  But once ISO
+   C 9X is out hopefully all maintained compilers will provide the data
+   types `float complex' and `double complex'.  */
+#if (__GNUC__ == 2 && __GNUC_MINOR__ >= 7) || __GNUC__ > 2
+# define complex __complex__
+#endif
+
+
+/* Narrowest imaginary unit.  This depends on the floating-point
+   evaluation method.
+   XXX This probably has to go into a gcc related file.  */
+#define _Imaginary_I	(DBL_EPSISON * 1.0i)
+
+/* Another more descriptive name is `I'.  */
+#undef I
+#define I _Imaginary_I
+
+
+/* Optimization aids.  This is not yet implemented in gcc and yonce it
+   is this will probably be available in a gcc header.  */
+#define CX_LIMITED_RANGE_ON
+#define CX_LIMITED_RANGE_OFF
+#define CX_LIMITED_RANGE_DEFAULT
+
+
+/* The file <cmathcalls.h> contains the prototypes for all the actual
+   math functions.  These macros are used for those prototypes, so
+   we can easily declare each function as both `name' and `__name',
+   and can declare the float versions `namef' and `__namef'.  */
+
+#define __MATHCALL(function, args)	\
+  __MATHDECL (_Mdouble_complex_,function, args)
+#define __MATHDECL(type, function, args) \
+  __MATHDECL_1(type, function, args); \
+  __MATHDECL_1(type, __CONCAT(__,function), args)
+#define __MATHDECL_1(type, function, args) \
+  extern type __MATH_PRECNAME(function) args
+
+#define _Mdouble_ 		double
+#define __MATH_PRECNAME(name)	name
+#include <cmathcalls.h>
+#undef	_Mdouble_
+#undef	__MATH_PRECNAME
+
+/* Now the float versions.  */
+#ifndef _Mfloat_
+#define _Mfloat_		float
+#endif
+#define _Mdouble_ 		_Mfloat_
+#ifdef __STDC__
+#define __MATH_PRECNAME(name)	name##f
+#else
+#define __MATH_PRECNAME(name)	name/**/f
+#endif
+#include <cmathcalls.h>
+#undef	_Mdouble_
+#undef	__MATH_PRECNAME
+
+/* And the long double versions.  It is non-critical to define them
+   here unconditionally since `long double' is required in ISO C 9X.  */
+#ifndef _Mlong_double_
+#define _Mlong_double_		long double
+#endif
+#define _Mdouble_ 		_Mlong_double_
+#ifdef __STDC__
+#define __MATH_PRECNAME(name)	name##l
+#else
+#define __MATH_PRECNAME(name)	name/**/l
+#endif
+#include <cmathcalls.h>
+#undef	_Mdouble_
+#undef	__MATH_PRECNAME
+#undef	__MATHDECL_1
+#undef	__MATHDECL
+#undef	__MATHCALL
+
+#endif /* complex.h */