diff options
Diffstat (limited to 'Test')
| -rw-r--r-- | Test/dafny0/fun-with-slices.dfy | 19 | ||||
| -rw-r--r-- | Test/dafny0/fun-with-slices.dfy.expect | 2 |
2 files changed, 21 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;
+ }
+}
diff --git a/Test/dafny0/fun-with-slices.dfy.expect b/Test/dafny0/fun-with-slices.dfy.expect new file mode 100644 index 00000000..069e7767 --- /dev/null +++ b/Test/dafny0/fun-with-slices.dfy.expect @@ -0,0 +1,2 @@ +
+Dafny program verifier finished with 2 verified, 0 errors
|