add_pointer

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

Adds the pointer qualifier to a specified type during program compilation. This API can be used for type conversion during compilation.

Prototype

template <typename Tp>
struct add_pointer;

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 reference), and pointer-qualified types

Restrictions

None

Returns

add_pointer is a struct that provides a nested type, which represents the type after the pointer qualifier is added. This type can be accessed through add_pointer<Tp>::type.

Examples

// Test basic type
ascendc_assert((AscendC::Std::is_same_v<AscendC::Std::add_pointer<int>::type, int*>));
ascendc_assert((AscendC::Std::is_same_v<AscendC::Std::add_pointer<float>::type, float*>));

// Test void type
ascendc_assert((AscendC::Std::is_same_v<AscendC::Std::add_pointer<void>::type, void*>));
ascendc_assert((AscendC::Std::is_same_v<AscendC::Std::add_pointer<const void>::type, const void*>));

// Test reference type
ascendc_assert((AscendC::Std::is_same_v<AscendC::Std::add_pointer<int&>::type, int*>));
ascendc_assert((AscendC::Std::is_same_v<AscendC::Std::add_pointer<const int&>::type, const int*>));

// Test function type
using FuncType = void();
ascendc_assert((AscendC::Std::is_same_v<AscendC::Std::add_pointer<FuncType>::type, FuncType*>));

// Test array type
using ArrayType = int[];
ascendc_assert((AscendC::Std::is_same_v<AscendC::Std::add_pointer<ArrayType>::type, ArrayType*>));
       
// Test pointer type
ascendc_assert((AscendC::Std::is_same_v<AscendC::Std::add_pointer<int*>::type, int**>));

Parent topic: Type Traits