BloombergLP::bdljsn::NumberUtil_IsSigned

Metafunction yielding whether integral t_TYPE is signed.

Synopsis

Declared in <bdljsn_numberutil.h>

template<class t_TYPE>
struct NumberUtil_IsSigned
    : bsl::integral_constant<bool, (t_TYPE(-1) < t_TYPE(0))>

Description

This class will be a bsl::true_type if the specified (template parameter type) t_TYPE is a signed type, and bsl::false_type otherwise. t_TYPE shall be an integral type. Note that currently bsl::is_signed is not available for C++03 platforms.

Base Classes

NameDescription
bsl::integral_constant<bool, (t_TYPE(-1) < t_TYPE(0))>Metafunction representing a compile-time constant of the specified (template parameter) t_TYPE with the specified (template parameter) t_VALUE.

Type Aliases

NameDescription
type Alias for this integral_constant specialization.
value_type Alias for the (template parameter) t_TYPE.

Member Functions

NameDescription
operator() Return a copy of the template argument t_VALUE.
operator t_TYPE Return a copy of the template argument t_VALUE.

Static Data Members

NameDescription
value The compile-time constant value of this metafunction.