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Delay release of std.range.slides until 2.076

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Sebastian Wilzbach 2017-07-16 01:17:11 +02:00
parent 42c3b6b751
commit 23bbadc4f4
2 changed files with 7 additions and 36 deletions
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33
changelog/std-range-slides.dd
View file

@ -1,33 +0,0 @@
`std.range.slide` (a fixed-size sliding window range) was added
$(REF slide, std, range) allows to iterate a range in sliding windows:
---
import std.array : array;
import std.algorithm.comparison : equal;
assert([0, 1, 2, 3].slide(2).equal!equal(
[[0, 1], [1, 2], [2, 3]]
));
assert(5.iota.slide(3).equal!equal(
[[0, 1, 2], [1, 2, 3], [2, 3, 4]]
));
assert(iota(7).slide(2, 2).equal!equal([[0, 1], [2, 3], [4, 5]]));
assert(iota(12).slide(2, 4).equal!equal([[0, 1], [4, 5], [8, 9]]));
// set a custom stepsize (default 1)
assert(6.iota.slide(1, 2).equal!equal(
[[0], [2], [4]]
));
assert(6.iota.slide(2, 4).equal!equal(
[[0, 1], [4, 5]]
));
// allow slide with less elements than the window size
assert(3.iota.slide!(No.withFewerElements)(4).empty);
assert(3.iota.slide!(Yes.withFewerElements)(4).equal!equal(
[[0, 1, 2]]
));
---

10
std/range/package.d
View file

@ -161,12 +161,14 @@ $(BOOKTABLE ,
$(TD Similar to $(D recurrence), except that a random-access _range is
created.
))
$(COMMENT Explicitly undocumented to delay the release until 2.076
$(TR $(TD $(D $(LREF slide)))
$(TD Creates a _range that returns a fixed-size sliding window
over the original _range. Unlike chunks,
it advances a configurable number of items at a time,
not one chunk at a time.
))
)
$(TR $(TD $(LREF stride))
$(TD Iterates a _range with stride $(I n).
))
@ -7414,7 +7416,7 @@ if (isForwardRange!Source && hasLength!Source)
assert(equal(chunks, [[1], [2], [3], [], []]));
}
/**
/*
A fixed-sized sliding window iteration
of size `windowSize` over a `source` range by a custom `stepSize`.
@ -7438,6 +7440,8 @@ Returns: Range of all sliding windows with propagated bi-directionality,
See_Also: $(LREF chunks)
*/
// Explicitly set to private to delay the release until 2.076
private
auto slide(Flag!"withFewerElements" f = Yes.withFewerElements,
Source)(Source source, size_t windowSize, size_t stepSize = 1)
if (isForwardRange!Source)
@ -7812,7 +7816,7 @@ public:
}
}
///
//
@safe pure nothrow unittest
{
import std.algorithm.comparison : equal;
@ -7844,7 +7848,7 @@ public:
));
}
/// count k-mers
// count k-mers
@safe pure nothrow unittest
{
import std.algorithm.comparison : equal;