This meta‐function, parameterized by an integral t_SWITCH_SELECTOR and types t_T0 up to t_T9, provides a single type alias, Type, which resolves, through specialization for a particular value N of t_SWITCH_SELECTOR, to the type TN, or to Nil if t_SWITCH_SELECTOR is negative or larger than the number of template arguments provided for the types.

Synopsis

Declared in <bslmf_switch.h>

template<
    size_t t_SWITCH_SELECTOR,
    class... t_TYPES>
struct Switch;

Type Aliases

Name

Description

Type

This Type is an alias to the parameterized TN, where N is the integral value of the parameterized t_SWITCH_SELECTOR. Note that the first type in the list corresponds to t_T0, not t_T1.

Specializations

Name

Switch<0U, t_T0, t_TYPES...>

Switch<1U, t_T0, t_T1, t_TYPES...>

Switch<2U, t_T0, t_T1, t_T2, t_TYPES...>

Switch<3U, t_T0, t_T1, t_T2, t_T3, t_TYPES...>

Switch<4U, t_T0, t_T1, t_T2, t_T3, t_T4, t_TYPES...>

Switch<5U, t_T0, t_T1, t_T2, t_T3, t_T4, t_T5, t_TYPES...>

Switch<6U, t_T0, t_T1, t_T2, t_T3, t_T4, t_T5, t_T6, t_TYPES...>

Switch<7U, t_T0, t_T1, t_T2, t_T3, t_T4, t_T5, t_T6, t_T7, t_TYPES...>

Switch<8U, t_T0, t_T1, t_T2, t_T3, t_T4, t_T5, t_T6, t_T7, t_T8, t_TYPES...>

Switch<9U, t_T0, t_T1, t_T2, t_T3, t_T4, t_T5, t_T6, t_T7, t_T8, t_T9, t_TYPES...>

Switch<t_SWITCH_SELECTOR, t_T0, t_T1, t_T2, t_T3, t_T4, t_T5, t_T6, t_T7, t_T8, t_T9, t_T10, t_TYPES...>

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