4.4 KiB
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Header: functional.h
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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.
Since: 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.
Since: 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.
Since: 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.
Since: 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.
Since: 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.
Since: 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.
Since: 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.
Since: 20.38.11