diff options
Diffstat (limited to 'lib/ur/top.ur')
| -rw-r--r-- | lib/ur/top.ur | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/lib/ur/top.ur b/lib/ur/top.ur index 3250a5a3..06dcab5f 100644 --- a/lib/ur/top.ur +++ b/lib/ur/top.ur @@ -410,3 +410,6 @@ fun max [t] ( _ : ord t) (x : t) (y : t) : t = if x > y then x else y fun min [t] ( _ : ord t) (x : t) (y : t) : t = if x < y then x else y + +fun assert [a] (cond: bool) (msg: string) (loc: string) (x:a): a = + if cond then x else error <xml>{[msg]} at {[loc]}</xml> |