1894e4c583
2008-08-23 Paolo Carlini <paolo.carlini@oracle.com> * acinclude.m4 ([GLIBCXX_CHECK_GETTIMEOFDAY]): Change to use GCC_TRY_COMPILE_OR_LINK. ([GLIBCXX_CHECK_CLOCK_GETTIME]): Rename to [GLIBCXX_ENABLE_CLOCK_GETTIME], a versatile configure-time option, [no] by default, since it includes TRY_LINK checks. librt is also searched, if requested. * doc/xml/manual/configure.xml: Document the latter. * configure.ac: Move the above checks outside native-only. * configure: Regenerate. From-SVN: r139576
310 lines
7.2 KiB
C
310 lines
7.2 KiB
C
/* Configuration data for libmath subpart of libstdc++. */
|
|
|
|
/* Copyright (C) 1997-1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
|
|
2007, 2008 Free Software Foundation, Inc.
|
|
|
|
This file is part of the GNU ISO C++ Library. This library is free
|
|
software; you can redistribute it and/or modify it under the
|
|
terms of the GNU General Public License as published by the
|
|
Free Software Foundation; either version 2, or (at your option)
|
|
any later version.
|
|
|
|
This 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 General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License along
|
|
with this library; see the file COPYING. If not, write to the Free
|
|
Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
|
|
USA.
|
|
|
|
As a special exception, you may use this file as part of a free software
|
|
library without restriction. Specifically, if other files instantiate
|
|
templates or use macros or inline functions from this file, or you compile
|
|
this file and link it with other files to produce an executable, this
|
|
file does not by itself cause the resulting executable to be covered by
|
|
the GNU General Public License. This exception does not however
|
|
invalidate any other reasons why the executable file might be covered by
|
|
the GNU General Public License. */
|
|
|
|
|
|
#include <config.h>
|
|
|
|
#ifdef HAVE_ENDIAN_H
|
|
# include <endian.h>
|
|
#else
|
|
# ifdef HAVE_MACHINE_ENDIAN_H
|
|
# ifdef HAVE_SYS_TYPES_H
|
|
# include <sys/types.h>
|
|
# endif
|
|
# include <machine/endian.h>
|
|
# else
|
|
# ifdef HAVE_SYS_MACHINE_H
|
|
# include <sys/machine.h>
|
|
# else
|
|
# if defined HAVE_SYS_ISA_DEFS_H || defined HAVE_MACHINE_PARAM_H
|
|
/* This is on Solaris. */
|
|
# ifdef HAVE_SYS_ISA_DEFS_H
|
|
# include <sys/isa_defs.h>
|
|
# endif
|
|
# ifdef HAVE_MACHINE_PARAM_H
|
|
# include <machine/param.h>
|
|
# endif
|
|
# ifdef _LITTLE_ENDIAN
|
|
# define LITTLE_ENDIAN 1
|
|
# endif
|
|
# ifdef _BIG_ENDIAN
|
|
# define BIG_ENDIAN 1
|
|
# endif
|
|
# define BYTE_ORDER 1
|
|
# else
|
|
/* We have to rely on the AC_C_BIGENDIAN test. */
|
|
# ifdef WORDS_BIGENDIAN
|
|
# define BIG_ENDIAN 1
|
|
# else
|
|
# define LITTLE_ENDIAN 1
|
|
# endif
|
|
# define BYTE_ORDER 1
|
|
# endif
|
|
# endif
|
|
# endif
|
|
#endif
|
|
|
|
typedef unsigned int U_int32_t __attribute ((mode (SI)));
|
|
typedef int Int32_t __attribute ((mode (SI)));
|
|
typedef unsigned int U_int64_t __attribute ((mode (DI)));
|
|
typedef int Int64_t __attribute ((mode (DI)));
|
|
|
|
#ifdef HAVE_NAN_H
|
|
# include <nan.h>
|
|
#endif
|
|
|
|
#ifdef HAVE_IEEEFP_H
|
|
# include <ieeefp.h>
|
|
#endif
|
|
|
|
#ifdef HAVE_FP_H
|
|
# include <fp.h>
|
|
#endif
|
|
|
|
#ifdef HAVE_FLOAT_H
|
|
# include <float.h>
|
|
#endif
|
|
|
|
/* `float' variant of HUGE_VAL. */
|
|
#ifndef HUGE_VALF
|
|
# ifdef HUGE_VALf
|
|
# define HUGE_VALF HUGE_VALf
|
|
# else
|
|
# define HUGE_VALF HUGE_VAL
|
|
# endif
|
|
#endif
|
|
|
|
/* `long double' variant of HUGE_VAL. */
|
|
#ifndef HUGE_VALL
|
|
# ifdef HUGE_VALl
|
|
# define HUGE_VALL HUGE_VALl
|
|
# else
|
|
# define HUGE_VALL HUGE_VAL
|
|
# endif
|
|
#endif
|
|
|
|
/* Make sure that at least HUGE_VAL is defined. */
|
|
#ifndef HUGE_VAL
|
|
# ifdef HUGE
|
|
# define HUGE_VAL HUGE
|
|
# else
|
|
# ifdef MAXFLOAT
|
|
# define HUGE_VAL MAXFLOAT
|
|
# else
|
|
# error "We need HUGE_VAL!"
|
|
# endif
|
|
# endif
|
|
#endif
|
|
|
|
#ifndef M_PI
|
|
# define M_PI 3.14159265358979323846
|
|
#endif
|
|
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
/* signbit is a macro in ISO C99. */
|
|
#ifndef signbit
|
|
extern int __signbitf (float);
|
|
extern int __signbit (double);
|
|
extern int __signbitl (long double);
|
|
|
|
# define signbit(x) \
|
|
(sizeof (x) == sizeof (float) ? \
|
|
__signbitf (x) \
|
|
: sizeof (x) == sizeof (double) ? \
|
|
__signbit (x) : __signbitl (x))
|
|
#endif
|
|
|
|
#if BYTE_ORDER == BIG_ENDIAN
|
|
typedef union
|
|
{
|
|
double value;
|
|
struct
|
|
{
|
|
U_int32_t msw;
|
|
U_int32_t lsw;
|
|
} parts;
|
|
} ieee_double_shape_type;
|
|
#endif
|
|
#if BYTE_ORDER == LITTLE_ENDIAN
|
|
typedef union
|
|
{
|
|
double value;
|
|
struct
|
|
{
|
|
U_int32_t lsw;
|
|
U_int32_t msw;
|
|
} parts;
|
|
} ieee_double_shape_type;
|
|
#endif
|
|
/* Get the more significant 32 bit int from a double. */
|
|
#define GET_HIGH_WORD(i,d) \
|
|
do { \
|
|
ieee_double_shape_type gh_u; \
|
|
gh_u.value = (d); \
|
|
(i) = gh_u.parts.msw; \
|
|
} while (0)
|
|
|
|
|
|
typedef union
|
|
{
|
|
float value;
|
|
U_int32_t word;
|
|
} ieee_float_shape_type;
|
|
/* Get a 32 bit int from a float. */
|
|
#define GET_FLOAT_WORD(i,d) \
|
|
do { \
|
|
ieee_float_shape_type gf_u; \
|
|
gf_u.value = (d); \
|
|
(i) = gf_u.word; \
|
|
} while (0)
|
|
|
|
|
|
#if BYTE_ORDER == BIG_ENDIAN
|
|
typedef union
|
|
{
|
|
long double value;
|
|
struct
|
|
{
|
|
unsigned int sign_exponent:16;
|
|
unsigned int empty:16;
|
|
U_int32_t msw;
|
|
U_int32_t lsw;
|
|
} parts;
|
|
} ieee_long_double_shape_type;
|
|
#endif
|
|
#if BYTE_ORDER == LITTLE_ENDIAN
|
|
typedef union
|
|
{
|
|
long double value;
|
|
struct
|
|
{
|
|
U_int32_t lsw;
|
|
U_int32_t msw;
|
|
unsigned int sign_exponent:16;
|
|
unsigned int empty:16;
|
|
} parts;
|
|
} ieee_long_double_shape_type;
|
|
#endif
|
|
/* Get int from the exponent of a long double. */
|
|
#define GET_LDOUBLE_EXP(exp,d) \
|
|
do { \
|
|
ieee_long_double_shape_type ge_u; \
|
|
ge_u.value = (d); \
|
|
(exp) = ge_u.parts.sign_exponent; \
|
|
} while (0)
|
|
|
|
#if BYTE_ORDER == BIG_ENDIAN
|
|
typedef union
|
|
{
|
|
long double value;
|
|
struct
|
|
{
|
|
U_int64_t msw;
|
|
U_int64_t lsw;
|
|
} parts64;
|
|
struct
|
|
{
|
|
U_int32_t w0, w1, w2, w3;
|
|
} parts32;
|
|
} ieee_quad_double_shape_type;
|
|
#endif
|
|
#if BYTE_ORDER == LITTLE_ENDIAN
|
|
typedef union
|
|
{
|
|
long double value;
|
|
struct
|
|
{
|
|
U_int64_t lsw;
|
|
U_int64_t msw;
|
|
} parts64;
|
|
struct
|
|
{
|
|
U_int32_t w3, w2, w1, w0;
|
|
} parts32;
|
|
} ieee_quad_double_shape_type;
|
|
#endif
|
|
/* Get most significant 64 bit int from a quad long double. */
|
|
#define GET_LDOUBLE_MSW64(msw,d) \
|
|
do { \
|
|
ieee_quad_double_shape_type qw_u; \
|
|
qw_u.value = (d); \
|
|
(msw) = qw_u.parts64.msw; \
|
|
} while (0)
|
|
|
|
|
|
/* Replacement for non-existing float functions. */
|
|
#ifndef HAVE_FABSF
|
|
# define fabsf(x) fabs (x)
|
|
#endif
|
|
#ifndef HAVE_COSF
|
|
# define cosf(x) cos (x)
|
|
#endif
|
|
#ifndef HAVE_COSHF
|
|
# define coshf(x) cosh (x)
|
|
#endif
|
|
#ifndef HAVE_EXPF
|
|
# define expf(x) expf (x)
|
|
#endif
|
|
#ifndef HAVE_LOGF
|
|
# define logf(x) log(x)
|
|
#endif
|
|
#ifndef HAVE_LOG10F
|
|
# define log10f(x) log10 (x)
|
|
#endif
|
|
#ifndef HAVE_POWF
|
|
# define powf(x, y) pow (x, y)
|
|
#endif
|
|
#ifndef HAVE_SINF
|
|
# define sinf(x) sin (x)
|
|
#endif
|
|
#ifndef HAVE_SINHF
|
|
# define sinhf(x) sinh (x)
|
|
#endif
|
|
#ifndef HAVE_SQRTF
|
|
# define sqrtf(x) sqrt (x)
|
|
#endif
|
|
#ifndef HAVE_TANF
|
|
# define tanf(x) tan (x)
|
|
#endif
|
|
#ifndef HAVE_TANHF
|
|
# define tanhf(x) tanh (x)
|
|
#endif
|
|
#ifndef HAVE_STRTOF
|
|
# define strtof(s, e) strtod (s, e)
|
|
#endif
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|