Number fabs(const Number& num1)
{
switch (num1.type())
{
case Number::INTEGER:
{
integer_type i = b_mp::abs(num1.get_i());
return Number(i);
}
case Number::FLOATING:
{
floating_type f = b_mp::fabs(num1.to_f());
return Number(f);
}
case Number::RATIONAL:
{
rational_type r = b_mp::abs(num1.get_r());
return Number(r);
}
#ifndef PMP_DISABLE_VECTOR
case Number::VECTOR:
{
vector_type v = num1.get_v();
for (size_t i = 0; i < v.size(); ++i)
{
v[i] = abs(v[i]);
}
return Number(v);
}
#endif
default:
assert(0);
return 0;
}
}
int Number::compare(const Number& num) const
{
#ifndef PMP_DISABLE_VECTOR
if (is_v() || num.is_v())
{
bool comparisons[3];
compare(num, comparisons);
if (comparisons[0]) return -1;
else if (comparisons[1]) return 0;
else if (comparisons[2]) return 1;
else return -2;
}
#endif
floating_type f;
switch (type())
{
case Number::INTEGER:
switch (num.type())
{
case Number::INTEGER:
return get_i().compare(num.get_i());
case Number::FLOATING:
f = to_f();
return f.compare(num.get_f());
case Number::RATIONAL:
f = to_f();
return f.compare(num.to_f());
default:
assert(0);
return 0;
}
case Number::FLOATING:
switch (num.type())
{
case Number::INTEGER:
f = num.to_f();
return get_f().compare(f);
case Number::FLOATING:
return get_f().compare(num.get_f());
case Number::RATIONAL:
return get_f().compare(num.to_f());
default:
assert(0);
return 0;
}
case Number::RATIONAL:
switch (num.type())
{
case Number::INTEGER:
f = num.to_f();
return to_f().compare(f);
case Number::FLOATING:
return to_f().compare(num.get_f());
case Number::RATIONAL:
return to_f().compare(num.to_f());
default:
assert(0);
return 0;
}
default:
assert(0);
return 0;
}
}