perm.h File Reference

Deals with permutations of {0,1,...,n-1}. More...

#include <cstdlib>
#include <string>
#include "regina-core.h"
#include "utilities/intutils.h"
#include "maths/perm-impl.h"

Classes
class	regina::Perm< n >
	Represents a permutation of {0,1,...,n-1}. More...

Namespaces
	regina
	Contains the entire Regina calculation engine.

Typedefs
template<int n>
using	regina::NPerm = Perm< n >
	Deprecated typedef for backward compatibility. More...

Functions
constexpr char	regina::digit (int i)
	Returns the character used to express the integer i in a permutation. More...
constexpr int64_t	regina::factorial (int n)
	Returns the factorial of n. More...
template<int n>
std::ostream &	regina::operator<< (std::ostream &out, const Perm< n > &p)
	Writes a string representation of the given permutation to the given output stream. More...

Detailed Description

Deals with permutations of {0,1,...,n-1}.

This is the only header that you need to include for Regina's permutation classes. It will automatically bring in all implementation details and specialisations.