remove_cv

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 const or volatile qualifier or removes both simultaneously from the input template parameter type during program compilation. This API can be used for type conversion during compilation.

Prototype

template <typename Tp>
struct remove_cv;

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, pointer, and reference), user-defined types (such as class and struct), and types qualified with const, volatile, or both const and volatile

Restrictions

None

Returns

remove_cv is a struct that provides a nested type, which represents the type after the const-qualified and volatile-qualified types are removed. This type is accessed through remove_cv<Tp>::type.

Examples

// Test non-const and non-volatile type
ascendc_assert((AscendC::Std::is_same_v<AscendC::Std::remove_cv<int>::type, int>));
ascendc_assert((AscendC::Std::is_same_v<AscendC::Std::remove_cv<double>::type, double>));
ascendc_assert((AscendC::Std::is_same_v<AscendC::Std::remove_cv<char>::type, char>));
// Test const type
ascendc_assert((AscendC::Std::is_same_v<AscendC::Std::remove_cv<const int>::type, int>));
ascendc_assert((AscendC::Std::is_same_v<AscendC::Std::remove_cv<const double>::type, double>));
ascendc_assert((AscendC::Std::is_same_v<AscendC::Std::remove_cv<const char>::type, char>));
// Test volatile type
ascendc_assert((AscendC::Std::is_same_v<AscendC::Std::remove_cv<volatile int>::type, int>));
ascendc_assert((AscendC::Std::is_same_v<AscendC::Std::remove_cv<volatile double>::type, double>));
ascendc_assert((AscendC::Std::is_same_v<AscendC::Std::remove_cv<volatile char>::type, char>));
// Test const and volatile type
ascendc_assert((AscendC::Std::is_same_v<AscendC::Std::remove_cv<const volatile int>::type, int>));
ascendc_assert((AscendC::Std::is_same_v<AscendC::Std::remove_cv<const volatile double>::type, double>));
ascendc_assert((AscendC::Std::is_same_v<AscendC::Std::remove_cv<const volatile char>::type, char>));

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

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

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

ascendc_assert((AscendC::Std::is_same_v<AscendC::Std::remove_cv_t<const volatile int>, int>));
ascendc_assert((AscendC::Std::is_same_v<AscendC::Std::remove_cv_t<const volatile double>, double>));

Parent topic: Type Traits