You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
77 lines
1.9 KiB
77 lines
1.9 KiB
#include <LiDIA/bigint.h>
|
|
#include <LiDIA/bigfloat.h>
|
|
#include <LiDIA/timer.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
|
|
int main (int argc, char * argv[])
|
|
{
|
|
int digits = 100;
|
|
int repetitions = 1;
|
|
while (argc >= 3) {
|
|
if (!strcmp(argv[1],"-r")) {
|
|
repetitions = atoi(argv[2]);
|
|
argc -= 2; argv += 2;
|
|
continue;
|
|
}
|
|
if (!strcmp(argv[1],"-n")) {
|
|
digits = atoi(argv[2]);
|
|
argc -= 2; argv += 2;
|
|
continue;
|
|
}
|
|
break;
|
|
}
|
|
if (argc < 1)
|
|
exit(1);
|
|
|
|
cerr << "Number of digits: " << digits << "\n";
|
|
cerr << "Number of repetitions: " << repetitions << "\n";
|
|
|
|
bigint pow; power(pow, (bigint)10,digits);
|
|
bigfloat::precision(digits*2);
|
|
bigint x1; truncate(x1, ((sqrt((bigfloat)5)+1)/2) * (pow*pow));
|
|
bigfloat::precision(digits);
|
|
bigint x2; truncate(x2, sqrt((bigfloat)3) * pow);
|
|
bigint x3 = pow+1;
|
|
|
|
cerr << "multiplication\n";
|
|
{ bigint r = x1*x2;
|
|
{ timer t; t.set_print_mode(0); t.start_timer();
|
|
for (int rep = repetitions; rep > 0; rep--)
|
|
{ bigint r = x1*x2; }
|
|
t.stop_timer(); cerr << t << endl;
|
|
}
|
|
cout << r << endl << endl;
|
|
}
|
|
|
|
cerr << "division\n";
|
|
{ bigint q; bigint r; div_rem(q,r, x1,x2);
|
|
{ timer t; t.set_print_mode(0); t.start_timer();
|
|
for (int rep = repetitions; rep > 0; rep--)
|
|
{ bigint q; bigint r; div_rem(q,r, x1,x2); }
|
|
t.stop_timer(); cerr << t << endl;
|
|
}
|
|
cout << q << endl << r << endl << endl;
|
|
}
|
|
|
|
cerr << "isqrt\n";
|
|
{ bigint r; sqrt(r, x3);
|
|
{ timer t; t.set_print_mode(0); t.start_timer();
|
|
for (int rep = repetitions; rep > 0; rep--)
|
|
{ bigint r; sqrt(r, x3); }
|
|
t.stop_timer(); cerr << t << endl;
|
|
}
|
|
cout << r << endl << endl;
|
|
}
|
|
|
|
cerr << "gcd\n";
|
|
{ bigint r = gcd(x1,x2);
|
|
{ timer t; t.set_print_mode(0); t.start_timer();
|
|
for (int rep = repetitions; rep > 0; rep--)
|
|
{ bigint r = gcd(x1,x2); }
|
|
t.stop_timer(); cerr << t << endl;
|
|
}
|
|
cout << r << endl << endl;
|
|
}
|
|
|
|
}
|