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/* auxiliary functions for MPFR tests.
Copyright 1999, 2000, 2001, 2002 Free Software Foundation, Inc.
This file is part of the MPFR Library.
The MPFR 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 MPFR 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 MPFR 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. */
#include <stdlib.h>
#include <limits.h>
#include <float.h>
#include <math.h>
#ifdef __mips
#include <sys/fpu.h>
#define HAVE_DENORMS
#endif
#if HAVE_CONFIG_H
#include "config.h"
#endif
/* set precision control to double on x86 */
#if (defined (__i386__) || defined (__i486__))
#ifdef __CYGWIN32__ /* no fpu_control.h under Cygnus */
#define _FPU_EXTENDED 0x300
#define _FPU_DOUBLE 0x200
#define _FPU_DEFAULT 0x137f
#define HAVE_SETFPUCW
#else
#ifdef HAVE_FPU_CONTROL_H
#include <fpu_control.h>
#define HAVE_SETFPUCW
#endif
#endif /* ifdef __CYGWIN32__ */
#ifndef __setfpucw
#define __setfpucw(cw) __asm__ ("fldcw %0" : : "m" (cw))
#endif /* ifndef __setfpucw */
#endif /* __i386__ */
/* Because of the SunOS 4 compiler */
#ifndef RAND_MAX
#define RAND_MAX 0x7FFFFFFF
#endif
/* generates a random long int, a random double,
and corresponding seed initializing */
#ifdef HAVE_LRAND48
#define LONG_RAND lrand48
#define DBL_RAND drand48
#define SEED_RAND srand48
#else
#define LONG_RAND random
#define DBL_RAND() ((double) random() / (double) RAND_MAX)
#define SEED_RAND srandom
#endif
#if defined (__hpux)
#define srandom srand48
#define random() (mrand48() & 0x7fffffff)
#endif
#define MINNORM 2.2250738585072013831e-308 /* 2^(-1022), smallest normalized */
#define MAXNORM 1.7976931348623157081e308 /* 2^(1023)*(2-2^(-52)) */
/* The MAX, MIN and ABS macros may already be defined if gmp-impl.h has
been included. They have the same semantics as in gmp-impl.h, but the
expressions may be slightly different. So, it's better to undefine
them first, as required by the ISO C standard. */
#undef MAX
#undef MIN
#undef ABS
#define MAX(a, b) (((a) > (b)) ? (a) : (b))
#define MIN(a, b) (((a) < (b)) ? (a) : (b))
#define ABS(x) (((x)>0) ? (x) : -(x))
void tests_memory_start _PROTO ((void));
void tests_memory_end _PROTO ((void));
void tests_start_mpfr _PROTO ((void));
void tests_end_mpfr _PROTO ((void));
void mpfr_test_init _PROTO ((void));
double drand _PROTO ((void));
int ulp _PROTO ((double, double));
double dbl _PROTO ((double, int));
double Ulp _PROTO ((double));
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