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Issue 11252 - In operator requested for std.range.iota

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dukc 2017-07-18 19:15:43 +03:00
parent 41d0771c98
commit 80d1e84453
1 changed files with 41 additions and 0 deletions
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41
std/range/package.d
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@ -5367,6 +5367,14 @@ if ((isIntegral!(CommonType!(B, E)) || isPointer!(CommonType!(B, E)))
// consistent with calling popFront() n times.
return cast(inout Value) (current + step * n);
}
auto opBinaryRight(string op)(Value val) const
if (op == "in")
{
if (empty) return false;
//cast to avoid becoming unsigned
auto supposedIndex = cast(StepType)(val - current) / step;
return supposedIndex < length && supposedIndex * step + current == val;
}
inout(Result) opSlice() inout { return this; }
inout(Result) opSlice(ulong lower, ulong upper) inout
{
@ -5444,6 +5452,11 @@ if (isIntegral!(CommonType!(B, E)) || isPointer!(CommonType!(B, E)))
// consistent with calling popFront() n times.
return cast(inout Value) (current + n);
}
auto opBinaryRight(string op)(Value val) const
if (op == "in")
{
return current <= val && val < pastLast;
}
inout(Result) opSlice() inout { return this; }
inout(Result) opSlice(ulong lower, ulong upper) inout
{
@ -5566,9 +5579,14 @@ body
auto r = iota(0, 10, 1);
assert(equal(r, [0, 1, 2, 3, 4, 5, 6, 7, 8, 9]));
assert(equal(r, [0, 1, 2, 3, 4, 5, 6, 7, 8, 9]));
assert(3 in r);
assert(!(10 in r));
assert(!(-8 in r));
r = iota(0, 11, 3);
assert(equal(r, [0, 3, 6, 9]));
assert(r[2] == 6);
assert(!(2 in r));
auto rf = iota(0.0, 0.5, 0.1);
assert(approxEqual(rf, [0.0, 0.1, 0.2, 0.3, 0.4]));
}
@ -5600,6 +5618,7 @@ debug @system unittest
auto r1 = iota(a.ptr, a.ptr + a.length, 1);
assert(r1.front == a.ptr);
assert(r1.back == a.ptr + a.length - 1);
assert(&a[4] in r1);
}
@safe unittest
@ -5639,6 +5658,8 @@ debug @system unittest
rSlice = r[0 .. 4];
assert(equal(rSlice, [0, 1, 2, 3]));
assert(3 in rSlice);
assert(!(4 in rSlice));
auto rr = iota(10);
assert(equal(rr, [0, 1, 2, 3, 4, 5, 6, 7, 8, 9][]));
@ -5655,8 +5676,15 @@ debug @system unittest
r = iota(0, -7, -3);
assert(equal(r, [0, -3, -6][]));
assert(0 in r);
assert(-6 in r);
rSlice = r[1 .. 3];
assert(equal(rSlice, [-3, -6]));
assert(!(0 in rSlice));
assert(!(-2 in rSlice));
assert(!(-5 in rSlice));
assert(!(3 in rSlice));
assert(!(-9 in rSlice));
r = iota(0, 11, 3);
assert(equal(r, [0, 3, 6, 9][]));
@ -5706,6 +5734,10 @@ debug @system unittest
// iota of longs
auto rl = iota(5_000_000L);
assert(rl.length == 5_000_000L);
assert(0 in rl);
assert(4_000_000L in rl);
assert(!(-4_000_000L in rl));
assert(!(5_000_000L in rl));
// iota of longs with steps
auto iota_of_longs_with_steps = iota(50L, 101L, 10);
@ -5726,6 +5758,15 @@ debug @system unittest
assert(iota(uint.max, uint.max-10, -2).length == 5);
assert(iota(uint.max, 0u, -1).length == uint.max);
assert(20 in iota(20u, 10u, -2));
assert(16 in iota(20u, 10u, -2));
assert(!(15 in iota(20u, 10u, -2)));
assert(!(10 in iota(20u, 10u, -2)));
assert(!(uint.max in iota(20u, 10u, -1)));
assert(!(int.min in iota(20u, 10u, -1)));
assert(!(int.max in iota(20u, 10u, -1)));
// Issue 8920
foreach (Type; AliasSeq!(byte, ubyte, short, ushort,
int, uint, long, ulong))