remove_reference

Applicability

Product	Supported
Atlas 350 Accelerator Card	√
Atlas A3 training product/Atlas A3 inference product	√
Atlas A2 training product/Atlas A2 inference product	√
Atlas 200I/500 A2 inference product	x
Atlas inference product AI Core	x
Atlas inference product Vector Core	x
Atlas training product	x

Function Usage

Removes the reference qualifiers, including the left-value reference T& and right-value reference T&&, from a given type during program compilation. This API can be used for type conversion during compilation.

Prototype

template <typename Tp>
struct remove_reference;

Parameters

**Table 1** Template parameters
Parameter	Description
Tp	Types to be processed, including basic types (such as int and float), composite types (such as array and pointer), user-defined types (such as class and struct), and types qualified with left-value reference & or right-value reference &&

Restrictions

None

Returns

remove_reference is a struct that provides a nested type, which represents the type after the reference qualifiers are removed. This type can be accessed through remove_reference<Tp>::type.

Examples

// Test non-reference type
ascendc_assert((AscendC::Std::is_same_v<AscendC::Std::remove_reference<int>::type, int>));
ascendc_assert((AscendC::Std::is_same_v<AscendC::Std::remove_reference<double>::type, double>));
ascendc_assert((AscendC::Std::is_same_v<AscendC::Std::remove_reference<char>::type, char>));
// Test lvalue reference type
ascendc_assert((AscendC::Std::is_same_v<AscendC::Std::remove_reference<int&>::type, int>));
ascendc_assert((AscendC::Std::is_same_v<AscendC::Std::remove_reference<double&>::type, double>));
ascendc_assert((AscendC::Std::is_same_v<AscendC::Std::remove_reference<char&>::type, char>));
// Test rvalue reference type
ascendc_assert((AscendC::Std::is_same_v<AscendC::Std::remove_reference<int&&>::type, int>));
ascendc_assert((AscendC::Std::is_same_v<AscendC::Std::remove_reference<double&&>::type, double>));
ascendc_assert((AscendC::Std::is_same_v<AscendC::Std::remove_reference<char&&>::type, char>));

ascendc_assert((AscendC::Std::is_same_v<AscendC::Std::remove_reference_t<int>, int>));
ascendc_assert((AscendC::Std::is_same_v<AscendC::Std::remove_reference_t<double>, double>));

ascendc_assert((AscendC::Std::is_same_v<AscendC::Std::remove_reference_t<int&>, int>));
ascendc_assert((AscendC::Std::is_same_v<AscendC::Std::remove_reference_t<double&>, double>));

ascendc_assert((AscendC::Std::is_same_v<AscendC::Std::remove_reference_t<int&&>, int>));
ascendc_assert((AscendC::Std::is_same_v<AscendC::Std::remove_reference_t<double&&>, double>));

Parent topic: Type Traits