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77 lines
1.9 KiB
77 lines
1.9 KiB
#include <LiDIA/bigint.h>
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#include <LiDIA/bigfloat.h>
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#include <LiDIA/timer.h>
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#include <cstdlib>
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#include <cstring>
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int main (int argc, char * argv[])
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{
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int digits = 100;
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int repetitions = 1;
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while (argc >= 3) {
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if (!strcmp(argv[1],"-r")) {
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repetitions = atoi(argv[2]);
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argc -= 2; argv += 2;
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continue;
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}
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if (!strcmp(argv[1],"-n")) {
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digits = atoi(argv[2]);
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argc -= 2; argv += 2;
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continue;
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}
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break;
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}
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if (argc < 1)
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exit(1);
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cerr << "Number of digits: " << digits << "\n";
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cerr << "Number of repetitions: " << repetitions << "\n";
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bigint pow; power(pow, (bigint)10,digits);
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bigfloat::precision(digits*2);
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bigint x1; truncate(x1, ((sqrt((bigfloat)5)+1)/2) * (pow*pow));
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bigfloat::precision(digits);
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bigint x2; truncate(x2, sqrt((bigfloat)3) * pow);
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bigint x3 = pow+1;
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cerr << "multiplication\n";
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{ bigint r = x1*x2;
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{ timer t; t.set_print_mode(0); t.start_timer();
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for (int rep = repetitions; rep > 0; rep--)
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{ bigint r = x1*x2; }
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t.stop_timer(); cerr << t << endl;
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}
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cout << r << endl << endl;
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}
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cerr << "division\n";
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{ bigint q; bigint r; div_rem(q,r, x1,x2);
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{ timer t; t.set_print_mode(0); t.start_timer();
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for (int rep = repetitions; rep > 0; rep--)
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{ bigint q; bigint r; div_rem(q,r, x1,x2); }
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t.stop_timer(); cerr << t << endl;
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}
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cout << q << endl << r << endl << endl;
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}
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cerr << "isqrt\n";
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{ bigint r; sqrt(r, x3);
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{ timer t; t.set_print_mode(0); t.start_timer();
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for (int rep = repetitions; rep > 0; rep--)
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{ bigint r; sqrt(r, x3); }
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t.stop_timer(); cerr << t << endl;
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}
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cout << r << endl << endl;
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}
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cerr << "gcd\n";
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{ bigint r = gcd(x1,x2);
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{ timer t; t.set_print_mode(0); t.start_timer();
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for (int rep = repetitions; rep > 0; rep--)
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{ bigint r = gcd(x1,x2); }
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t.stop_timer(); cerr << t << endl;
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}
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cout << r << endl << endl;
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}
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}
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