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54fa741538
2000-06-06 Steven King <sxking@uswest.net>
* acconfig.h: Added defines for HAVE_BUILTIN math functs for float,
double and long double. Added defines for HAVE libm math functs for
float and long double.
* aclocal.m4: Added configure checks for builtin math funcs and libm
support for float and long double versions of the math functions.
* config.h.in: Added undefs for math functs.
* configure: Regenerate.
* math/mathconf: Changed the _GLIBCPP_HAS_BUILTIN_* to
_GLIBCPP_HAVE_BUILTIN_*.
* bits/std_cmath.h: Added long double support. Use builtins for
float, double and long if available, otherwise, use libm versions if
availible, otherwise, punt.
* shadow/bits/std_cmath.h: ditto
From-SVN: r34436
374 lines
9.6 KiB
C
374 lines
9.6 KiB
C
/* Configuration data for libmath subpart of libstdc++. */
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/* Copyright (C) 1997-1999, 2000 Free Software Foundation, Inc.
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This file is part of the GNU ISO C++ Library. This library is free
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software; you can redistribute it and/or modify it under the
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terms of the GNU General Public License as published by the
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Free Software Foundation; either version 2, or (at your option)
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any later version.
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This 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
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License along
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with this library; see the file COPYING. If not, write to the Free
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Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
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USA.
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As a special exception, you may use this file as part of a free software
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library without restriction. Specifically, if other files instantiate
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templates or use macros or inline functions from this file, or you compile
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this file and link it with other files to produce an executable, this
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file does not by itself cause the resulting executable to be covered by
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the GNU General Public License. This exception does not however
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invalidate any other reasons why the executable file might be covered by
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the GNU General Public License. */
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#include <bits/c++config.h>
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#ifdef _GLIBCPP_HAVE_ENDIAN_H
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# include <endian.h>
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#else
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# ifdef _GLIBCPP_HAVE_MACHINE_ENDIAN_H
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# include <machine/endian.h>
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# else
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# ifdef _GLIBCPP_HAVE_SYS_MACHINE_H
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# include <sys/machine.h>
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# else
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# if defined _GLIBCPP_HAVE_SYS_ISA_DEFS_H || defined _GLIBCPP_HAVE_MACHINE_PARAM_H
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/* This is on Solaris. */
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# ifdef _GLIBCPP_HAVE_SYS_ISA_DEFS_H
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# include <sys/isa_defs.h>
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# endif
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# ifdef _GLIBCPP_HAVE_MACHINE_PARAM_H
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# include <machine/param.h>
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# endif
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# ifdef _LITTLE_ENDIAN
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# define LITTLE_ENDIAN 1
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# endif
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# ifdef _BIG_ENDIAN
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# define BIG_ENDIAN 1
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# endif
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# define BYTE_ORDER 1
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# else
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/* We have to rely on the AC_C_BIGENDIAN test. */
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# ifdef WORDS_BIGENDIAN
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# define BIG_ENDIAN 1
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# else
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# define LITTLE_ENDIAN 1
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# endif
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# define BYTE_ORDER 1
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# endif
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# endif
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# endif
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#endif
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typedef unsigned int U_int32_t __attribute ((mode (SI)));
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typedef int Int32_t __attribute ((mode (SI)));
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#ifdef _GLIBCPP_HAVE_NAN_H
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# include <nan.h>
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#endif
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#ifndef NAN
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# define NAN (nan())
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double nan (void);
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#endif
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#ifdef _GLIBCPP_HAVE_IEEEFP_H
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# include <ieeefp.h>
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#endif
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#ifdef _GLIBCPP_HAVE_FP_H
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# include <fp.h>
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#endif
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#ifdef _GLIBCPP_HAVE_FLOAT_H
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# include <float.h>
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#endif
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/* `float' variant of HUGE_VAL. */
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#ifndef HUGE_VALF
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# ifdef HUGE_VALf
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# define HUGE_VALF HUGE_VALf
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# else
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# define HUGE_VALF HUGE_VAL
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# endif
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#endif
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/* `long double' variant of HUGE_VAL. */
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#ifndef HUGE_VALL
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# ifdef HUGE_VALl
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# define HUGE_VALL HUGE_VALl
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# else
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# define HUGE_VALL HUGE_VAL
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# endif
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#endif
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/* Make sure that at least HUGE_VAL is defined. */
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#ifndef HUGE_VAL
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# ifdef HUGE
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# define HUGE_VAL HUGE
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# else
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# ifdef MAXFLOAT
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# define HUGE_VAL MAXFLOAT
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# else
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# error "We need HUGE_VAL!"
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# endif
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# endif
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#endif
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#ifndef M_PI
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# define M_PI 3.14159265358979323846
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#endif
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/* Test whether number is finite. */
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#ifdef isfinite
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/* This is an ISO C 9x function. */
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# define FINITE_P(X) isfinite (X)
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# define FINITEF_P(X) isfinite (X)
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# define FINITEL_P(X) isfinite (X)
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#else
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# ifdef IsNANorINF
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/* This is for Solaris, which does not have special macros for other
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types. */
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# define FINITE_P(X) (!IsNANorINF (X))
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# define FINITEF_P(X) (!IsNANorINF (X))
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# define FINITEL_P(X) (!IsNANorINF (X))
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# else
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# if defined _GLIBCPP_HAVE_ISINF && defined _GLIBCPP_HAVE_ISNAN
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# define FINITE_P(X) ({ double __x = (X); !isinf (__x) && !isnan (__x); })
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# else
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# ifdef _GLIBCPP_HAVE_FINITE
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# define FINITE_P(X) finite (X)
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# else
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# error "We need FINITE_P"
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# endif
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# endif
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# if defined _GLIBCPP_HAVE_ISINFF && defined _GLIBCPP_HAVE_ISNANF
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# define FINITEF_P(X) ({ float __x = (X); !isinff (__x) && !isnanf (__x); })
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# else
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# ifdef _GLIBCPP_HAVE_FINITE
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# define FINITEF_P(X) finite (X)
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# else
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# define FINITEF_P(X) FINITE_P (X)
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# endif
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# endif
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# if defined _GLIBCPP_HAVE_ISINFL && defined _GLIBCPP_HAVE_ISNANL
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# define FINITEL_P(X) ({ long double __x = (X); \
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!isinfl (__x) && !isnanl (__x); })
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# else
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# ifdef _GLIBCPP_HAVE_QFINITE
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# define FINITEL_P(X) qfinite (X)
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# else
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# define FINITEL_P(X) FINITE_P (X)
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# endif
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# endif
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# endif
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#endif
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/* Test whether number is infinite. */
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#ifdef isinf
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/* This is an ISO C 9x macro. */
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# define INFINITE_P(X) isinf (X)
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# define INFINITEF_P(X) isinf (X)
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# define INFINITEL_P(X) isinf (X)
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#else
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# ifdef IsINF
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/* This is for Solaris, which does not have special macros for other
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types. */
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# define INFINITE_P(X) IsINF (X)
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# define INFINITEF_P(X) IsINF (X)
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# define INFINITEL_P(X) IsINF (X)
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# else
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# if defined _GLIBCPP_HAVE_ISINF
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# define INFINITE_P(X) isinf (X)
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# else
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# ifdef _GLIBCPP_HAVE_FPCLASS
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# ifdef _FPCLASS_PINF
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/* Mingw defines _FPCLASS_PINF. */
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# define FP_PINF _FPCLASS_PINF
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# endif
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/* This is for Irix and Mingw. */
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# define INFINITE_P(X) (fpclass (fabs (X)) == FP_PINF)
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# else
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# ifdef IS_INF
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/* This is for AIX. */
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# define INFINITE_P(X) ({ double __d = (X); IS_INF (__d); })
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# else
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# error "We need INFINITE_P"
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# endif
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# endif
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# endif
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# if defined _GLIBCPP_HAVE_ISINFF
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# define INFINITEF_P(X) isinff (X)
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# else
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# define INFINITEF_P(X) INFINITE_P (X)
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# endif
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# if defined _GLIBCPP_HAVE_ISINFL
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# define INFINITEL_P(X) isinfl (X)
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# else
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# ifdef _GLIBCPP_HAVE_QFPCLASS
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# define INFINITEL_P(X) (qfpclass (fabsl (X)) == FP_PINF)
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# else
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# define INFINITEL_P(X) INFINITE_P (X)
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# endif
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# endif
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# endif
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#endif
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#ifdef __cplusplus
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extern "C" {
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#endif
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#ifdef _GLIBCPP_HAVE_COMPLEX_H
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# include <complex.h>
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#else
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# include "complex-stub.h"
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#endif
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__complex__ double c_log (__complex__ double x);
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__complex__ float c_logf (__complex__ float x);
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__complex__ long double c_logl (__complex__ long double x);
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/* signbit is a macro in ISO C 9x. */
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#ifndef signbit
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extern int __signbitf (float);
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extern int __signbit (double);
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extern int __signbitl (long double);
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# define signbit(x) \
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(sizeof (x) == sizeof (float) ? \
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__signbitf (x) \
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: sizeof (x) == sizeof (double) ? \
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__signbit (x) : __signbitl (x))
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#endif
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#if BYTE_ORDER == BIG_ENDIAN
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typedef union
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{
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double value;
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struct
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{
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U_int32_t msw;
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U_int32_t lsw;
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} parts;
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} ieee_double_shape_type;
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#endif
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#if BYTE_ORDER == LITTLE_ENDIAN
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typedef union
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{
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double value;
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struct
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{
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U_int32_t lsw;
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U_int32_t msw;
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} parts;
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} ieee_double_shape_type;
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#endif
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/* Get the more significant 32 bit int from a double. */
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#define GET_HIGH_WORD(i,d) \
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do { \
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ieee_double_shape_type gh_u; \
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gh_u.value = (d); \
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(i) = gh_u.parts.msw; \
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} while (0)
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typedef union
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{
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float value;
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U_int32_t word;
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} ieee_float_shape_type;
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/* Get a 32 bit int from a float. */
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#define GET_FLOAT_WORD(i,d) \
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do { \
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ieee_float_shape_type gf_u; \
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gf_u.value = (d); \
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(i) = gf_u.word; \
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} while (0)
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#if BYTE_ORDER == BIG_ENDIAN
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typedef union
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{
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long double value;
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struct
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{
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unsigned int sign_exponent:16;
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unsigned int empty:16;
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U_int32_t msw;
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U_int32_t lsw;
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} parts;
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} ieee_long_double_shape_type;
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#endif
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#if BYTE_ORDER == LITTLE_ENDIAN
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typedef union
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{
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long double value;
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struct
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{
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U_int32_t lsw;
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U_int32_t msw;
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unsigned int sign_exponent:16;
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unsigned int empty:16;
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} parts;
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} ieee_long_double_shape_type;
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#endif
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/* Get int from the exponent of a long double. */
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#define GET_LDOUBLE_EXP(exp,d) \
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do { \
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ieee_long_double_shape_type ge_u; \
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ge_u.value = (d); \
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(exp) = ge_u.parts.sign_exponent; \
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} while (0)
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/* Replacement for non-existing float functions. */
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#if !defined(_GLIBCPP_HAVE_FABSF) && !defined(_GLIBCPP_HAVE_BUILTIN_FABSF)
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# define fabsf(x) fabs (x)
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#endif
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#if !defined(_GLIBCPP_HAVE_COSF) && !defined(_GLIBCPP_HAVE_BUILTIN_COSF)
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# define cosf(x) cos (x)
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#endif
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#ifndef _GLIBCPP_HAVE_COSHF
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# define coshf(x) cosh (x)
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#endif
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#ifndef _GLIBCPP_HAVE_EXPF
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# define expf(x) expf (x)
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#endif
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#ifndef _GLIBCPP_HAVE_LOGF
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# define logf(x) log(x)
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#endif
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#ifndef _GLIBCPP_HAVE_LOG10F
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# define log10f(x) log10 (x)
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#endif
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#ifndef _GLIBCPP_HAVE_POWF
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# define powf(x, y) pow (x, y)
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#endif
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#if !defined(_GLIBCPP_HAVE_SINF) && !defined(_GLIBCPP_HAVE_BUILTIN_SINF)
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# define sinf(x) sin (x)
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#endif
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#ifndef _GLIBCPP_HAVE_SINHF
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# define sinhf(x) sinh (x)
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#endif
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#if !defined(_GLIBCPP_HAVE_SQRTF) && !defined(_GLIBCPP_HAVE_BUILTIN_SQRTF)
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# define sqrtf(x) sqrt (x)
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#endif
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#ifndef _GLIBCPP_HAVE_TANF
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# define tanf(x) tan (x)
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#endif
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#ifndef _GLIBCPP_HAVE_TANHF
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# define tanhf(x) tanh (x)
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#endif
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#ifndef _GLIBCPP_HAVE_STRTOF
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# define strtof(s, e) strtod (s, e)
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#endif
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#ifdef __cplusplus
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}
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#endif
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