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author | Lukas Rytz <lukas.rytz@gmail.com> | 2016-09-30 17:04:47 +0200 |
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committer | GitHub <noreply@github.com> | 2016-09-30 17:04:47 +0200 |
commit | e1e895cebc3514409c6b01e736b990ebd373e44c (patch) | |
tree | 87ccd572307f310d7fef6ee8e250a7e02b3b455d | |
parent | a62230690bf2a367405ef55c597da46ce192ce9a (diff) | |
parent | ae0269200c6e5af8120587e2317f595e746c6114 (diff) | |
download | scala-e1e895cebc3514409c6b01e736b990ebd373e44c.tar.gz scala-e1e895cebc3514409c6b01e736b990ebd373e44c.tar.bz2 scala-e1e895cebc3514409c6b01e736b990ebd373e44c.zip |
Merge pull request #5421 from som-snytt/issue/9936
SI-9936 SeqLike.indexWhere starts at zero
-rw-r--r-- | src/library/scala/collection/SeqLike.scala | 2 | ||||
-rw-r--r-- | test/junit/scala/collection/SeqLikeTest.scala | 19 |
2 files changed, 20 insertions, 1 deletions
diff --git a/src/library/scala/collection/SeqLike.scala b/src/library/scala/collection/SeqLike.scala index a26765027c..2d662257e5 100644 --- a/src/library/scala/collection/SeqLike.scala +++ b/src/library/scala/collection/SeqLike.scala @@ -113,7 +113,7 @@ trait SeqLike[+A, +Repr] extends Any with IterableLike[A, Repr] with GenSeqLike[ } def indexWhere(p: A => Boolean, from: Int): Int = { - var i = from + var i = from max 0 val it = iterator.drop(from) while (it.hasNext) { if (p(it.next())) return i diff --git a/test/junit/scala/collection/SeqLikeTest.scala b/test/junit/scala/collection/SeqLikeTest.scala new file mode 100644 index 0000000000..2ab682299d --- /dev/null +++ b/test/junit/scala/collection/SeqLikeTest.scala @@ -0,0 +1,19 @@ +package scala.collection + +import org.junit.runner.RunWith +import org.junit.runners.JUnit4 +import org.junit.Assert._ +import org.junit.Test + +@RunWith(classOf[JUnit4]) +class SeqLikeTest { + + @Test def `SI-9936 indexWhere`(): Unit = { + assertEquals(2, "abcde".indexOf('c', -1)) + assertEquals(2, "abcde".indexOf('c', -2)) + assertEquals(2, "abcde".toVector.indexOf('c', -1)) + assertEquals(2, "abcde".toVector.indexOf('c', -2)) + assertEquals(2, "abcde".toVector.indexWhere(_ == 'c', -1)) + assertEquals(2, "abcde".toVector.indexWhere(_ == 'c', -2)) + } +} |