functional

Defines functional classes from the STL.

reference_wrapper

etl::reference_wrapper is a class template that wraps a reference in a copyable, assignable object.
A clone of std::reference_wrapper.

unary_function

template <typename TArgumentType, typename TResultType>
struct unary_function

Typedefs

TArgumentType argument_type
TResultType   result_type

binary_function

template <typename TFirstArgumentType, typename TSecondArgumentType, typename TResultType>
struct binary_function

Typedefs

TFirstArgumentType  first_argument_type
TSecondArgumentType second_argument_type
TResultType         result_type

bind1st

template <typename TFunction>
class binder1st

template <typename F, typename T>
binder1st<F> bind1st(const F& f, const T& x)

Description
Binds a given argument to a first parameter of the given binary function object.

bind2nd

template <typename TFunction>
class binder2nd

template <typename F, typename T>
binder2nd<F> bind2nd(const F& f, const T& x)

Description
Binds a given argument to a second parameter of the given binary function object.

Less

template <typename T = void>
struct less

Description
A function object that performs a strictly less-than comparison a < b) between two values.

template <>
struct less<void> 

Description
A function object that performs a strictly less-than comparison a < b) between two values.
Transparent comparator.
Defines is_transparent.
From: 20.21.0

less_equal

template <typename T = void>
struct less_equal

Description
A function object that performs a strictly less-than-equal comparison a <= b) between two values.

template <>
struct less_equal<void>

Description
A function object that performs a strictly less-than-equal comparison a <= b) between two values.
Transparent comparator. Defines is_transparent. From: 20.21.0

greater

template <typename T = void>
struct greater

Description
A function object that performs a strictly greater-than comparison a > b) between two values.

template <>
struct greater<void>

Description
A function object that performs a strictly greater-than comparison a > b) between two values.
Transparent comparator.
Defines is_transparent. From: 20.21.0

greater_equal

template <typename T = void>
struct greater_equal

Description
A function object that performs a strictly greater-than-equal comparison a >= b) between two values.

template <>
struct greater_equal<void>

Description
A function object that performs a strictly greater-than-equal comparison a >= b) between two values.
Transparent comparator.
Defines is_transparent. From: 20.21.0

equal_to

template <typename T = void>
struct equal_to

Description
A function object that performs a strictly equal-to comparison a == b) between two values.

template <>
struct equal_to<void>

Description
A function object that performs a strictly equal-to comparison a == b) between two values.
Transparent comparator.
Defines is_transparent.
From: 20.21.0

not_equal_to

template <typename T = void>
struct not_equal_to

Description
A function object that performs a strictly not-equal-to comparison a !== b) between two values.

template <>
struct not_equal_to<void>

Description
A function object that performs a strictly not-equal-to comparison a !== b) between two values.
Transparent comparator.
Defines is_transparent.
From: 20.21.0

mem_fn

template <typename TReturnType, typename TClassType, typename... TArgs>
<functor> mem_fn(TReturnType(TClassType::* member_function)(TArgs...))

Description
Returns a functor that wraps a member function of TClassType, taking TArgs and returning TReturnType.
From: 20.38.11

template <typename TReturnType, typename TClassType, typename... TArgs>
<functor> mem_fn(TReturnType(TClassType::* member_function)(TArgs...) const)

Description
Returns a functor that wraps a const member function of TClassType, taking TArgs and returning TReturnType.
From: 20.38.11