function
partition
partition[type: AnyRegType, cmp_fn: fn[AnyRegType]($0, $0, /) capturing -> Bool](buff: LegacyPointer[type, 0], k: Int, size: Int)
Partition the input vector inplace such that first k elements are the largest (or smallest if cmp_fn is <= operator) elements. The ordering of the first k elements is undefined.
Parameters:
- type (
AnyRegType
): DType of the underlying data. - cmp_fn (
fn[AnyRegType]($0, $0, /) capturing -> Bool
): Comparison functor of type, type) capturing -> Bool type.
Args:
- buff (
LegacyPointer[type, 0]
): Input buffer. - k (
Int
): Index of the partition element. - size (
Int
): The length of the buffer.