is_layout

Product Support

Product	Supported
Atlas A3 training products/Atlas A3 inference products	√
Atlas A2 training products/Atlas A2 inference products	√
Atlas 200I/500 A2 inference products	x
Atlas inference product's AI Core	x
Atlas inference product's Vector Core	x
Atlas training products	x

Function

Determines whether an input data structure is of the Layout type by checking the value of its member constant value. If value is true, the input data structure is of the Layout type; otherwise, it is not.

Prototype

template <typename T> struct is_layout

Parameters

**Table 1** Template parameters
Parameter	Description
T	Whether the input data structure is of the Layout type based on the input data type.

Returns

None

Restrictions

None

Example

// Initialize the Layout data structure and determine its type.
AscendC::Shape<int,int,int> shape = AscendC::MakeShape(10, 20, 30);
AscendC::Stride<int,int,int> stride = AscendC::MakeStride(1, 100, 200);

auto layoutMake = AscendC::MakeLayout(shape, stride);
AscendC::Layout<AscendC::Shape<int, int, int>, AscendC::Stride<int, int, int>> layoutInit(shape, stride);

bool value = AscendC::is_layout<decltype(shape)>::value; //value = false
value = AscendC::is_layout<decltype(stride)>::value; //value = false

value = AscendC::is_layout<decltype(layoutMake)>::value;//value = true
value = AscendC::is_layout<decltype(layoutInit)>::value;//value = true

Parent topic: Layout