mirror of https://github.com/macssh/macssh.git
89 lines
2.6 KiB
C
Executable File
89 lines
2.6 KiB
C
Executable File
/* Test file for mpfr_cmp2.
|
|
|
|
Copyright (C) 1999 PolKA project, Inria Lorraine and Loria
|
|
|
|
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 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 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 Library General Public
|
|
License for more details.
|
|
|
|
You should have received a copy of the GNU Library 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 <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <math.h>
|
|
#include "gmp.h"
|
|
#include "longlong.h"
|
|
#include "mpfr.h"
|
|
#include "mpfr-impl.h"
|
|
#ifdef IRIX64
|
|
#include <sys/fpu.h>
|
|
#endif
|
|
|
|
extern int isnan();
|
|
|
|
void tcmp2(x, y, i) double x, y; int i;
|
|
{
|
|
mpfr_t xx,yy; int j;
|
|
|
|
if (i==-1) {
|
|
if (x==y) i=53;
|
|
else i = (int) floor(log(x)/log(2.0)) - (int) floor(log(x-y)/log(2.0));
|
|
}
|
|
mpfr_init2(xx, 53); mpfr_init2(yy, 53);
|
|
mpfr_set_d(xx, x, 0);
|
|
mpfr_set_d(yy, y, 0);
|
|
if ((j=mpfr_cmp2(xx, yy)) != i) {
|
|
printf("Error in mpfr_cmp2: x=%1.20e y=%1.20e mpfr_cmp2(x,y)=%d instead of %d\n",x,y,j,i);
|
|
exit(1);
|
|
}
|
|
mpfr_set_prec(xx, 127); mpfr_set_prec(yy, 127);
|
|
mpfr_set_str_raw(xx, "0.1011010000110111111000000101011110110001000101101011011110010010011110010000101101000010011001100110010000000010110000101000101E6");
|
|
mpfr_set_str_raw(yy, "0.1011010000110111111000000101011011111100011101000011001111000010100010100110110100110010011001100110010000110010010110000010110E6");
|
|
if ((j=mpfr_cmp2(xx, yy)) != 32) {
|
|
printf("Error in mpfr_cmp2:\n");
|
|
printf("x="); mpfr_print_raw(xx); putchar('\n');
|
|
printf("y="); mpfr_print_raw(yy); putchar('\n');
|
|
printf("got %d, expected 32\n", j);
|
|
exit(1);
|
|
}
|
|
mpfr_clear(xx); mpfr_clear(yy);
|
|
}
|
|
|
|
int main()
|
|
{
|
|
int i,j; double x=1.0, y, z;
|
|
#ifdef IRIX64
|
|
/* to get denormalized numbers on IRIX64 */
|
|
union fpc_csr exp;
|
|
exp.fc_word = get_fpc_csr();
|
|
exp.fc_struct.flush = 0;
|
|
set_fpc_csr(exp.fc_word);
|
|
#endif
|
|
|
|
tcmp2(1.06022698059744327881e+71, 1.05824655795525779205e+71, -1);
|
|
tcmp2(1.0, 1.0, 53);
|
|
for (i=0;i<54;i++) {
|
|
tcmp2(1.0, 1.0-x, i);
|
|
x /= 2.0;
|
|
}
|
|
for (j=0;j<1000000;j++) {
|
|
x = drand48();
|
|
y = drand48();
|
|
if (x<y) { z=x; x=y; y=z; }
|
|
if (y != 0.0 && y != -0.0) tcmp2(x, y, -1);
|
|
}
|
|
exit (0);
|
|
}
|
|
|