pgcd.cpp
972 Bytes
// -*- mode:C++ ; compile-command: "g++ -I.. -fPIC -DPIC -g -c pgcd.cpp -o pgcd.lo && ln -sf pgcd.lo pgcd.o && gcc -shared pgcd.lo -lc -Wl,-soname -Wl,libpgcd.so.0 -o libpgcd.so.0.0.0 && ln -sf libpgcd.so.0.0.0 libpgcd.so.0 && ln -sf libpgcd.so.0.0.0 libpgcd.so" -*-
using namespace std;
#include <stdexcept>
#include <cmath>
#include <cstdlib>
#include <giac/giac.h>
//#include "pgcd.h"
#ifndef NO_NAMESPACE_GIAC
namespace giac {
#endif // ndef NO_NAMESPACE_GIAC
gen pgcd(gen a,gen b){
gen q,r;
for (;b!=0;){
r=irem(a,b,q);
a=b;
b=r;
}
return a;
}
gen _pgcd(const gen & args){
if ( (args.type!=_VECT) || (args._VECTptr->size()!=2))
setsizeerr();
vecteur &v=*args._VECTptr;
return pgcd(v[0],v[1]);
}
const string _pgcd_s("pgcd");
unary_function_unary __pgcd(&_pgcd,_pgcd_s);
unary_function_ptr at_pgcd (&__pgcd,0,true);
#ifndef NO_NAMESPACE_GIAC
} // namespace giac
#endif // ndef NO_NAMESPACE_GIAC