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Add empty check for haystack range r in skipOver()

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Remove space
This commit is contained in:
Per Nordlöw 2014-09-02 14:14:51 +02:00
parent 238bbb9cfd
commit 7f3611a5ed
1 changed files with 4 additions and 1 deletions
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5
std/algorithm.d
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@ -6164,7 +6164,7 @@ unchanged and return $(D false).
bool skipOver(alias pred = "a == b", R, E)(ref R r, E e) bool skipOver(alias pred = "a == b", R, E)(ref R r, E e)
if (is(typeof(binaryFun!pred(r.front, e)))) if (is(typeof(binaryFun!pred(r.front, e))))
{ {
if (!binaryFun!pred(r.front, e)) if (r.empty || !binaryFun!pred(r.front, e))
return false; return false;
r.popFront(); r.popFront();
return true; return true;
@ -6183,6 +6183,9 @@ unittest {
assert(r == ["abc", "def", "hij"]); assert(r == ["abc", "def", "hij"]);
assert(skipOver!((a, b) => a.equal(b))(r, e)); assert(skipOver!((a, b) => a.equal(b))(r, e));
assert(r == ["def", "hij"]); assert(r == ["def", "hij"]);
auto s2 = "";
assert(!s2.skipOver('a'));
} }
/* (Not yet documented.) /* (Not yet documented.)