rcfilter

Implements the higher order filter and map function. The predicate and map functions are passed to mir.functional.naryFun, and can either accept a string, or any callable that can be executed via pred(element) and map(element).

auto rcfilter(Range r)
template rcfilter(alias pred = "a", alias map = "a")
@optmath
static if(__traits(isSame, naryFun!pred, pred) && __traits(isSame, naryFun!map, map))
auto
rcfilter
(
Range
)
(
Range r
)
if (
isIterable!Range &&
(
!isSlice!Range ||
DimensionCount!Range == 1
)
)
auto rcfilter(Slice!(Iterator, N, kind) slice)
alias rcfilter = .rcfilter!(naryFun!pred, naryFun!map)

Members

Aliases

rcfilter alias rcfilter = .rcfilter!(naryFun!pred, naryFun!map): Undocumented in source.

Functions

rcfilter auto rcfilter(Slice!(Iterator, N, kind) slice)
rcfilter auto rcfilter(Range r)

Parameters

pred: Filter function to apply to each element of range (optional)
map: Map function to apply to each element of range

Return Value

rcfilter!(pred)(range) returns a new RCArray containing only elements map(x) in range for which pred(x) returns true.

Examples

import mir.ndslice.topology: iota;

auto val = 3;
auto factor = 5;
// Filter iota 2x3 matrix below 3
assert(iota(2, 3).rcfilter!(a => a < val).moveToSlice.equal(val.iota));
// Filter and map below 3
assert(6.iota.rcfilter!(a => a < val, a => a * factor).moveToSlice.equal(val.iota * factor));