+//#define WANT_OBFUSCATING_OPERATORS
+#include <cl_number.h>
+#include <cl_io.h>
+//#include <cl_complex.h>
+//#include <cl_real.h>
+//#include <cl_real_io.h>
+//#include <cl_output.h>
+//#include <cl_ffloat.h>
+#include <cl_integer.h>
+#include <cl_integer_io.h>
+//#include <cl_modinteger.h>
+//#include <cl_numtheory.h>
+#include <cl_timing.h>
+
+#define DUMP(expr) \
+ fprint(cl_stdout, #expr" = "); fprint(cl_stdout, expr); fprint(cl_stdout, "\n");
+
+int main (int argc, char* argv[])
+{
+ (void)argc; (void)argv;
+
+#if 0
+ cl_F pi = cl_pi((cl_float_format_t)10000);
+ fprint(cl_stdout, pi);
+ fprint(cl_stdout, "\n");
+#endif
+
+#if 0
+ cl_FF a;
+ cl_FF x1 = "-0.2173f0";
+ cl_FF x2 = "5.5084f9";
+ cl_FF y = "-1.19698f9";
+ fprint(cl_stdout, "x1 = "); print_float_binary(cl_stdout,x1); fprint(cl_stdout, " = "); fprint(cl_stdout,x1); fprint(cl_stdout, "\n");
+ fprint(cl_stdout, "x2 = "); print_float_binary(cl_stdout,x2); fprint(cl_stdout, " = "); fprint(cl_stdout,x2); fprint(cl_stdout, "\n");
+ fprint(cl_stdout, "y = "); print_float_binary(cl_stdout,y); fprint(cl_stdout, " = "); fprint(cl_stdout,y); fprint(cl_stdout, "\n");
+ cl_FF x = x1*x2;
+ fprint(cl_stdout, "x1*x2 = "); print_float_binary(cl_stdout,x); fprint(cl_stdout, " = "); fprint(cl_stdout,x); fprint(cl_stdout, "\n");
+#endif
+
+#if 0
+ cl_I x = 10;
+ cl_I y = ++x;
+ x *= 2;
+ x++;
+ fprint(cl_stdout, "x = "); fprint(cl_stdout, x); fprint(cl_stdout, "\n");
+ fprint(cl_stdout, "y = "); fprint(cl_stdout, y); fprint(cl_stdout, "\n");
+#endif
+
+#if 0
+ cl_I a = "77371252437321868671713407";
+ cl_I w;
+ cl_boolean squarep = isqrt(a,&w);
+ DUMP(squarep);
+ DUMP(w);
+ DUMP(expt_pos(w,2) <= a);
+ DUMP(a < expt_pos(w+1,2));
+#endif
+
+#if 0
+ cl_I m = "79228162513111556826425457664";
+ cl_I a = "19787815858762768436681494528";
+ cl_modint_ring R = cl_find_modint_ring(m);
+ cl_I b = R->retract(R->canonhom(a));
+ cl_I c = mod(a,abs(m));
+ DUMP(b);
+ DUMP(c);
+ DUMP(b==c);
+#endif
+
+#if 0
+ cl_N x = argv[1];
+ cl_N y = sinh(x);
+ { CL_TIMING; y = sinh(x); }
+ cout << y << endl;
+#endif
+
+#if 0
+ cl_I x = argv[1];
+ cout << x << " is " << (isprobprime(x) ? "" : "not ") << "prime" << endl;
+#endif
+
+#if 0
+ cl_float_format_t f = cl_float_format(atoi(argv[1]));
+ extern cl_LF cl_zeta3 (uintC len);
+ uintC len = (uintL)f/intDsize+1;
+ { CL_TIMING; cout << cl_zeta(2,f) << endl; }
+ { CL_TIMING; cout << expt(cl_pi(f),2)/6 << endl; }
+ { CL_TIMING; cout << cl_zeta(3,f) << endl; }
+ { CL_TIMING; cout << cl_zeta3(len) << endl; }
+ { CL_TIMING; cout << cl_zeta(4,f) << endl; }
+#endif
+
+ cl_I a = cl_I(argv[1]);
+ cl_I b = cl_I(argv[2]);
+ cl_I u;
+ cl_I v;
+ cl_I g = xgcd(a,b,&u,&v);
+ cout << "a = " << a << endl;
+ cout << "b = " << b << endl;
+ cout << "gcd = " << gcd(a,b) << endl;
+ cout << "g = " << g << endl;
+ cout << "u = " << u << endl;
+ cout << "v = " << v << endl;
+
+#if 0
+ cl_F x = argv[1];
+ cout << x << endl;
+#endif
+
+}