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Fix Issue 20241 - BitArray.bitsSet ignores length

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Vladimir Panteleev 2019-09-25 07:50:24 +00:00
parent 01fd74a699
commit 289149a2f1
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GPG key ID: 5004F0FAD051576D
1 changed files with 19 additions and 5 deletions
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24
std/bitmanip.d
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@ -2585,12 +2585,16 @@ public:
@property auto bitsSet() const nothrow @property auto bitsSet() const nothrow
{ {
import std.algorithm.iteration : filter, map, joiner; import std.algorithm.iteration : filter, map, joiner;
import std.range : iota; import std.range : iota, chain;
return iota(dim). return chain(
filter!(i => _ptr[i])(). iota(fullWords)
map!(i => BitsSet!size_t(_ptr[i], i * bitsPerSizeT))(). .filter!(i => _ptr[i])()
joiner(); .map!(i => BitsSet!size_t(_ptr[i], i * bitsPerSizeT))()
.joiner(),
iota(fullWords * bitsPerSizeT, _len)
.filter!(i => this[i])()
);
} }
/// ///
@ -2630,6 +2634,16 @@ public:
assert(b.bitsSet.equal(iota(wordBits * 2))); assert(b.bitsSet.equal(iota(wordBits * 2)));
} }
// Issue 20241
@system unittest
{
BitArray ba;
ba.length = 2;
ba[1] = 1;
ba.length = 1;
assert(ba.bitsSet.empty);
}
private void formatBitString(Writer)(auto ref Writer sink) const private void formatBitString(Writer)(auto ref Writer sink) const
{ {
if (!length) if (!length)