diff options
| author |  Benjamin Barenblat <bbaren@mit.edu> | 2016-05-30 17:58:02 -0400 |
|---|---|---|
| committer | Benjamin Barenblat <bbaren@mit.edu> | 2016-05-30 17:58:02 -0400 |
| commit | e67c951ad9c5c637e36a6f025ba3d6e3ad945416 (patch) | |
| tree | 0cfb5c339602e4bdebf4bf97f3f0ccc3923c14d1 /Test/dafny0/fun-with-slices.dfy | |
| parent | 000aa762e1fee4b9bd83ec3d7c8b61fd203e2c9d (diff) | |
| parent | df5c5f547990c1f80ab7594a1f9287ee03a61754 (diff) | |
Merge commit 'df5c5f5'
Diffstat (limited to 'Test/dafny0/fun-with-slices.dfy')
| -rw-r--r-- | Test/dafny0/fun-with-slices.dfy | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/Test/dafny0/fun-with-slices.dfy b/Test/dafny0/fun-with-slices.dfy new file mode 100644 index 00000000..3d8da242 --- /dev/null +++ b/Test/dafny0/fun-with-slices.dfy @@ -0,0 +1,19 @@ +// RUN: %dafny /compile:0 /print:"%t.print" /dprint:"%t.dprint" "%s" > "%t"
+// RUN: %diff "%s.expect" "%t"
+
+// This test was contributed by Bryan. It has shown some instabilities in the past.
+
+method seqIntoArray<A>(s: seq<A>, a: array<A>, index: nat)
+ requires a != null
+ requires index + |s| <= a.Length
+ modifies a
+ ensures a[..] == old(a[0..index]) + s + old(a[index + |s|..]) {
+ var i := index;
+
+ while i < index + |s|
+ invariant index <= i <= index + |s| <= a.Length
+ invariant a[..] == old(a[0..index]) + s[0..(i-index)] + old(a[i..]) {
+ a[i] := s[i - index];
+ i := i + 1;
+ }
+}
|