BloombergLP::bslmf::MetaInt

Synopsis

Declared in <bslmf_metaint.h>

template<int t_INT_VALUE>
struct MetaInt
    : bsl::integral_constant<int, t_INT_VALUE>

Base Classes

Name	Description
`bsl::integral_constant<int, t_INT_VALUE>`	Metafunction representing a compile-time constant of the specified (template parameter) `t_TYPE` with the specified (template parameter) `t_VALUE`.

Type Aliases

Name	Description
`Tag`	Tag type encoding `t_INT_VALUE` for overload resolution.
`Type`	This specialization of `MetaInt`.
`type`	Alias for this `integral_constant` specialization.
`value_type`

Enums

Name	Description
`Unnamed enum`	Compile-time integer constants for this metafunction.

Member Functions

Name	Description
`MetaInt` [constructor]	Constructors
`operator()`	Return a copy of the template argument `t_VALUE`.
`operator value_type`

Static Member Functions

Name Description

tag Declared but not defined. Meta-function use only. The tag can be used to recover meta-information from an expression. Example: sizeof(f(expr).tag()) returns a different compile-time value depending on the type of the result of calling the f function but does not actually call the f function or the tag method at run-time. Note that f(expr)::VALUE or sizeof(f(expr)::Type) would be ill-formed and that f(expr).value is not a compile-time expression.

Name	Description
`tag`	Declared but not defined. Meta-function use only. The tag can be used to recover meta-information from an expression. Example: `sizeof(f(expr).tag())` returns a different compile-time value depending on the type of the result of calling the `f` function but does not actually call the `f` function or the `tag` method at run-time. Note that `f(expr)::VALUE` or `sizeof(f(expr)::Type)` would be ill-formed and that `f(expr).value` is not a compile-time expression.

Static Data Members

Name
`value`

Specializations

Name	Description
`MetaInt<0>`	This specialization of `MetaInt` has a `VAL` of zero and is convertible to and from `bsl::false_type`.
`MetaInt<1>`	This specialization of `MetaInt` has a `VAL` of one and is convertible to and from `bsl::true_type`.