is_layout

Supported Products

Product	Supported (√/x)
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

Functions

determines whether the input data structure is the layout data structure by checking the value of its member constant value. If value is set to true, the input data structure is of the layout type. Otherwise, the input data structure is not of the layout type.

Prototype

template <typename T> struct is_layout

Parameters

**Table 1** Parameters in the template
Parameter	Description
T	Checks whether the input data structure is a layout data structure based on the input data type.

Returns

None

Restrictions

None

Examples

// 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