Struct DLDataType 

#[repr(C)]
pub struct DLDataType {
    pub code: u8,
    pub bits: u8,
    pub lanes: u16,
}

\brief The data type the tensor can hold. The data type is assumed to follow the native endian-ness. An explicit error message should be raised when attempting to export an array with non-native endianness

Examples

• float: type_code = 2, bits = 32, lanes = 1
• float4(vectorized 4 float): type_code = 2, bits = 32, lanes = 4
• int8: type_code = 0, bits = 8, lanes = 1
• std::complex: type_code = 5, bits = 64, lanes = 1
• bool: type_code = 6, bits = 8, lanes = 1 (as per common array library convention, the underlying storage size of bool is 8 bits)
• float8_e4m3: type_code = 8, bits = 8, lanes = 1 (packed in memory)
• float6_e3m2fn: type_code = 16, bits = 6, lanes = 1 (packed in memory)
• float4_e2m1fn: type_code = 17, bits = 4, lanes = 1 (packed in memory)

When a sub-byte type is packed, DLPack requires the data to be in little bit-endian, i.e., for a packed data set D ((D >> (i * bits)) && bit_mask) stores the i-th element.

Fields

code: u8

\brief Type code of base types. We keep it uint8_t instead of DLDataTypeCode for minimal memory footprint, but the value should be one of DLDataTypeCode enum values.

bits: u8

\brief Number of bits, common choices are 8, 16, 32.

lanes: u16

\brief Number of lanes in the type, used for vector types.

Trait Implementations

impl Clone for DLDataType

fn clone(&self) -> DLDataType

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Copy for DLDataType

impl Debug for DLDataType

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.