Memory
Module
Defines functions for memory manipulations.
memcmp
memcmp[type: DType](s1: DTypePointer[type], s2: DTypePointer[type], count: Int) -> Int
Compare two buffers. Both strings are assumed to be of the same length.
Parameters:
- type (
DType): The element dtype.
Args:
- s1 (
DTypePointer[type]): The first buffer address. - s2 (
DTypePointer[type]): The second buffer address. - count (
Int): The number of elements in the buffers.
Returns:
Returns 0 if the bytes buffers are identical, 1 if s1 > s2, and -1 if s1 < s2. The comparison is performed by the first different byte in the buffer.
memcmp[type: AnyType](s1: Pointer[type], s2: Pointer[type], count: Int) -> Int
Compare two buffers. Both strings are assumed to be of the same length.
Parameters:
- type (
AnyType): The element type.
Args:
- s1 (
Pointer[type]): The first buffer address. - s2 (
Pointer[type]): The second buffer address. - count (
Int): The number of elements in the buffers.
Returns:
Returns 0 if the bytes strings are identical, 1 if s1 > s2, and -1 if s1 < s2. The comparison is performed by the first different byte in the byte strings.
memcpy
memcpy[type: AnyType](dest: Pointer[type], src: Pointer[type], count: Int)
Copy memory area.
Parameters:
- type (
AnyType): The element type.
Args:
- dest (
Pointer[type]): The destination pointer. - src (
Pointer[type]): The source pointer. - count (
Int): The number of elements to copy.
memcpy[type: DType](dest: DTypePointer[type], src: DTypePointer[type], count: Int)
Copy memory area.
Parameters:
- type (
DType): The element dtype.
Args:
- dest (
DTypePointer[type]): The destination pointer. - src (
DTypePointer[type]): The source pointer. - count (
Int): The number of elements to copy (not bytes!).
memcpy[type: DType, size: Dim](dest: Buffer[size, type], src: Buffer[size, type])
Copy the memory buffer from src to dest.
Parameters:
- type (
DType): The element dtype. - size (
Dim): Number of elements in the buffer.
Args:
- dest (
Buffer[size, type]): The destination buffer. - src (
Buffer[size, type]): The source buffer.
memset
memset[type: DType](ptr: DTypePointer[type], value: scalar<ui8>, count: Int)
Fill memory with the given value.
Parameters:
- type (
DType): The element dtype.
Args:
- ptr (
DTypePointer[type]): Pointer to the beginning of the memory block to fill. - value (
scalar<ui8>): The value to fill with. - count (
Int): Number of elements to fill (in elements, not bytes).
memset_zero
memset_zero[type: DType](ptr: DTypePointer[type], count: Int)
Fill memory with zeros.
Parameters:
- type (
DType): The element dtype.
Args:
- ptr (
DTypePointer[type]): Pointer to the beginning of the memory block to fill. - count (
Int): Number of elements to set (in elements, not bytes).
memset_zero[type: AnyType](ptr: Pointer[type], count: Int)
Fill memory with zeros.
Parameters:
- type (
AnyType): The element type.
Args:
- ptr (
Pointer[type]): Pointer to the beginning of the memory block to fill. - count (
Int): Number of elements to fill (in elements, not bytes).
stack_allocation
stack_allocation[count: Int, type: AnyType, alignment: Int]() -> Pointer[type]
Allocates data buffer space on the stack given a data type and number of elements.
Parameters:
- count (
Int): Number of elements to allocate memory for. - type (
AnyType): The data type of each element. - alignment (
Int): Address alignment of the allocated data.
Returns:
A data pointer of the given type pointing to the allocated space.