#include #include #include #include #include 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 (except for pi,euler,e): " << repetitions << "\n"; bigfloat::precision(digits); bigfloat x1 = sqrt((bigfloat)2); bigfloat x2 = sqrt((bigfloat)3); bigfloat x3 = log((bigfloat)2); cerr << "multiplication\n"; { bigfloat r = x1*x2; { timer t; t.set_print_mode(0); t.start_timer(); for (int rep = repetitions; rep > 0; rep--) { r = x1*x2; } t.stop_timer(); cerr << t << endl; } cout << r << endl << endl; } cerr << "sqrt\n"; { bigfloat r = sqrt(x3); { timer t; t.set_print_mode(0); t.start_timer(); for (int rep = repetitions; rep > 0; rep--) { r = sqrt(x3); } t.stop_timer(); cerr << t << endl; } cout << r << endl << endl; } cerr << "pi\n"; { bigfloat r; { timer t; t.set_print_mode(0); t.start_timer(); r = Pi(); t.stop_timer(); cerr << t << endl; } cout << r << endl << endl; } cerr << "eulerconst\n"; { bigfloat r; { timer t; t.set_print_mode(0); t.start_timer(); r = Euler(); t.stop_timer(); cerr << t << endl; } cout << r << endl << endl; } cerr << "e\n"; { bigfloat r; { timer t; t.set_print_mode(0); t.start_timer(); r = E(); t.stop_timer(); cerr << t << endl; } cout << r << endl << endl; } cerr << "exp\n"; { bigfloat r = exp(-x1); { timer t; t.set_print_mode(0); t.start_timer(); for (int rep = repetitions; rep > 0; rep--) { r = exp(-x1); } t.stop_timer(); cerr << t << endl; } cout << r << endl << endl; } cerr << "log\n"; { bigfloat r = log(x2); { timer t; t.set_print_mode(0); t.start_timer(); for (int rep = repetitions; rep > 0; rep--) { r = log(x2); } t.stop_timer(); cerr << t << endl; } cout << r << endl << endl; } cerr << "sin\n"; { bigfloat r = sin(5*x1); { timer t; t.set_print_mode(0); t.start_timer(); for (int rep = repetitions; rep > 0; rep--) { r = sin(5*x1); } t.stop_timer(); cerr << t << endl; } cout << r << endl << endl; } cerr << "cos\n"; { bigfloat r = cos(5*x1); { timer t; t.set_print_mode(0); t.start_timer(); for (int rep = repetitions; rep > 0; rep--) { r = cos(5*x1); } t.stop_timer(); cerr << t << endl; } cout << r << endl << endl; } cerr << "asin\n"; { bigfloat r = asin(x3); { timer t; t.set_print_mode(0); t.start_timer(); for (int rep = repetitions; rep > 0; rep--) { r = asin(x3); } t.stop_timer(); cerr << t << endl; } cout << r << endl << endl; } cerr << "acos\n"; { bigfloat r = acos(x3); { timer t; t.set_print_mode(0); t.start_timer(); for (int rep = repetitions; rep > 0; rep--) { r = acos(x3); } t.stop_timer(); cerr << t << endl; } cout << r << endl << endl; } cerr << "atan\n"; { bigfloat r = atan(x3); { timer t; t.set_print_mode(0); t.start_timer(); for (int rep = repetitions; rep > 0; rep--) { r = atan(x3); } t.stop_timer(); cerr << t << endl; } cout << r << endl << endl; } cerr << "sinh\n"; { bigfloat r = sinh(x2); { timer t; t.set_print_mode(0); t.start_timer(); for (int rep = repetitions; rep > 0; rep--) { r = sinh(x2); } t.stop_timer(); cerr << t << endl; } cout << r << endl << endl; } cerr << "cosh\n"; { bigfloat r = cosh(x2); { timer t; t.set_print_mode(0); t.start_timer(); for (int rep = repetitions; rep > 0; rep--) { r = cosh(x2); } t.stop_timer(); cerr << t << endl; } cout << r << endl << endl; } cerr << "asinh\n"; { bigfloat r = asinh(x3); { timer t; t.set_print_mode(0); t.start_timer(); for (int rep = repetitions; rep > 0; rep--) { r = asinh(x3); } t.stop_timer(); cerr << t << endl; } cout << r << endl << endl; } cerr << "acosh\n"; { bigfloat r = acosh(1+x3); { timer t; t.set_print_mode(0); t.start_timer(); for (int rep = repetitions; rep > 0; rep--) { r = acosh(1+x3); } t.stop_timer(); cerr << t << endl; } cout << r << endl << endl; } cerr << "atanh\n"; { bigfloat r = atanh(x3); { timer t; t.set_print_mode(0); t.start_timer(); for (int rep = repetitions; rep > 0; rep--) { r = atanh(x3); } t.stop_timer(); cerr << t << endl; } cout << r << endl << endl; } }