Macros
#define	STD_IS_NOTHROW_MOVE_CONSTRUCTIBLE_VALUE(t_TYPE)

Detailed Description

Outline

Purpose
Classes
Description

Purpose

Provide metafunction to identify no-throw move-constructible types.

Classes

bsl::is_nothrow_move_constructible: type-traits metafunction
bsl::is_nothrow_move_constructible_v: the metafunction's result value

See also: bslmf_integralconstant, bslmf_nestedtraitdeclaration, bslmf_movableref

Description

This component defines a metafunction, bsl::is_nothrow_move_constructible, and a variable template bsl::is_nothrow_move_constructible_v that represents the result value of the bsl::is_nothrow_move_constructible metafunction, which may be used to query whether a type has a constructor that can be called with a single rvalue that is known to not throw exceptions. Note that a C++11 compiler will automatically infer this trait for class types with a move constructor that is marked as noexcept.

bsl::is_nothrow_move_constructible meets the requirements of the is_nothrow_move_constructible template defined in the C++11 standard.

Note that the template variable is_nothrow_move_constructible_v is defined in the C++17 standard as an inline variable. If the current compiler supports the inline variable C++17 compiler feature, bsl::is_nothrow_move_constructible_v is defined as an 'inline constexpr bool' variable. Otherwise, if the compiler supports the variable templates C++14 compiler feature, bsl::is_nothrow_move_constructible_v is defined as a non-inline constexpr bool variable. See BSLS_COMPILERFEATURES_SUPPORT_INLINE_VARIABLES and BSLS_COMPILERFEATURES_SUPPORT_VARIABLE_TEMPLATES macros in the bsls_compilerfeatures component for details.

Macro Definition Documentation

◆ STD_IS_NOTHROW_MOVE_CONSTRUCTIBLE_VALUE

#define STD_IS_NOTHROW_MOVE_CONSTRUCTIBLE_VALUE ( t_TYPE )

Value:

    (bsl::is_array<t_TYPE>::value                                             \
         ? false                                                              \
         : ::std::is_nothrow_move_constructible<t_TYPE>::value)

Macros