Rose::Combinatorics Namespace Reference

Description

Combinatoric functions.

Classes
class	Hasher
	Hash interface. More...
class	HasherFnv
	Fowler-Noll-Vo hashing using the Hasher interface. More...
class	HasherGcrypt
	Hasher for any libgcrypt hash algorithm. More...
class	HasherSha256Builtin
	Built-in SHA-256 hasher. More...

Typedefs
typedef HasherGcrypt< 0 >	HasherMd5
	MD5 hasher. More...
typedef HasherGcrypt< 0 >	HasherSha1
	SHA1 hasher. More...
typedef HasherGcrypt< 0 >	HasherSha256
	SHA-256 hasher. More...
typedef HasherGcrypt< 0 >	HasherSha384
	SHA-384 hasher. More...
typedef HasherGcrypt< 0 >	HasherSha512
	SHA-512 hasher. More...
typedef HasherGcrypt< 0 >	HasherCrc32
	ISO 3309 hasher. More...

Functions
ROSE_DLL_API bool	flip_coin ()
	Simulate flipping a coin. More...
template<typename T >
void	shuffle (std::vector< T > &vector, size_t nitems=UNLIMITED, size_t limit=UNLIMITED)
	Shuffle the values of a vector. More...
template<class T , class U >
std::vector< std::pair< T, U > >	zip (const std::vector< T > &first, const std::vector< U > &second)
	Convert two vectors to a vector of pairs. More...
template<class T , class U >
std::pair< std::vector< T >, std::vector< U > >	unzip (const std::vector< std::pair< T, U > > &pairs)
	Convert a vector of pairs to a pair of vectors. More...

Typedef Documentation

typedef HasherGcrypt<0> Rose::Combinatorics::HasherMd5

MD5 hasher.

Throws exception if libgcrypt is not configured.

Definition at line 382 of file Combinatorics.h.

typedef HasherGcrypt<0> Rose::Combinatorics::HasherSha1

SHA1 hasher.

Throws exception if libgcrypt is not configured.

Definition at line 383 of file Combinatorics.h.

typedef HasherGcrypt<0> Rose::Combinatorics::HasherSha256

SHA-256 hasher.

Throws exception if libgcrypt is not configured.

Definition at line 384 of file Combinatorics.h.

typedef HasherGcrypt<0> Rose::Combinatorics::HasherSha384

SHA-384 hasher.

Throws exception if libgcrypt is not configured.

Definition at line 385 of file Combinatorics.h.

typedef HasherGcrypt<0> Rose::Combinatorics::HasherSha512

SHA-512 hasher.

Throws exception if libgcrypt is not configured.

Definition at line 386 of file Combinatorics.h.

typedef HasherGcrypt<0> Rose::Combinatorics::HasherCrc32

ISO 3309 hasher.

Throws exception if libgcrypt is not configured.

Definition at line 387 of file Combinatorics.h.

Function Documentation

ROSE_DLL_API bool Rose::Combinatorics::flip_coin

(

)

Simulate flipping a coin.

Randomly returns true or false with equal probability.

template<typename T >

void Rose::Combinatorics::shuffle	(	std::vector< T > &	vector,
		size_t	nitems = UNLIMITED,
		size_t	limit = UNLIMITED
	)

Shuffle the values of a vector.

This algorithm randomly shuffles the items in the vector by swapping values at indexes zero through limit with values at randomly selected indexes zero through nitems. The defaults for nitems and limit are the size of the input vector.

Definition at line 75 of file Combinatorics.h.

References Sawyer::fastRandomIndex().

template<class T , class U >

std::vector<std::pair<T, U> > Rose::Combinatorics::zip	(	const std::vector< T > &	first,
		const std::vector< U > &	second
	)

Convert two vectors to a vector of pairs.

If the two input vectors are not the same length, then the length of the result is the length of the shorter input vector.

Definition at line 426 of file Combinatorics.h.

template<class T , class U >

std::pair<std::vector<T>, std::vector<U> > Rose::Combinatorics::unzip

(

const std::vector< std::pair< T, U > > &

pairs

)

Convert a vector of pairs to a pair of vectors.

Definition at line 438 of file Combinatorics.h.