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Merge pull request #7090 from burner/std.algorithm.setops_assert_messages

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Addes assert messages
merged-on-behalf-of: Nicholas Wilson <thewilsonator@users.noreply.github.com>
This commit is contained in:
The Dlang Bot 2019-06-25 16:33:37 +02:00 • committed by GitHub
commit c256ecf65b
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1 changed files with 16 additions and 10 deletions
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26
std/algorithm/setops.d
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@ -415,7 +415,8 @@ if (ranges.length >= 2 &&
return copy;
}
}
static assert(isForwardRange!Result);
static assert(isForwardRange!Result, Result.stringof ~ " must be a forward"
~ " range");
return Result(ranges);
}
@ -884,7 +885,8 @@ struct MultiwayMerge(alias less, RangeOfRanges)
return;
}
// Put the popped range back in the heap
_heap.conditionalInsert(_ror.back) || assert(false);
const bool worked = _heap.conditionalInsert(_ror.back);
assert(worked, "Failed to insert item into heap");
}
}
@ -1060,7 +1062,7 @@ public:
///
@property auto ref front()
{
assert(!empty);
assert(!empty, "Can not get front of empty SetDifference");
return r1.front;
}
@ -1192,11 +1194,12 @@ public:
///
void popFront()
{
assert(!empty);
assert(!empty, "Can not popFront of empty SetIntersection");
static if (Rs.length > 1) foreach (i, ref r; _input)
{
alias next = _input[(i + 1) % Rs.length];
assert(!comp(r.front, next.front));
assert(!comp(r.front, next.front), "Set elements must not"
~ " contradict the less predicate");
}
foreach (ref r; _input)
@ -1209,7 +1212,7 @@ public:
///
@property ElementType front()
{
assert(!empty);
assert(!empty, "Can not get front of empty SetIntersection");
return _input[0].front;
}
@ -1349,7 +1352,7 @@ public:
///
void popFront()
{
assert(!empty);
assert(!empty, "Can not popFront of empty SetSymmetricDifference");
if (r1.empty) r2.popFront();
else if (r2.empty) r1.popFront();
else
@ -1361,7 +1364,8 @@ public:
}
else
{
assert(comp(r2.front, r1.front));
assert(comp(r2.front, r1.front), "Elements of R1 and R2"
~ " must be different");
r2.popFront();
}
}
@ -1371,9 +1375,11 @@ public:
///
@property auto ref front()
{
assert(!empty);
assert(!empty, "Can not get the front of an empty"
~ " SetSymmetricDifference");
immutable chooseR1 = r2.empty || !r1.empty && comp(r1.front, r2.front);
assert(chooseR1 || r1.empty || comp(r2.front, r1.front));
assert(chooseR1 || r1.empty || comp(r2.front, r1.front), "Failed to"
~ " get appropriate front");
return chooseR1 ? r1.front : r2.front;
}