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-rw-r--r--lib/pure/strscans.nim3
1 files changed, 2 insertions, 1 deletions
diff --git a/lib/pure/strscans.nim b/lib/pure/strscans.nim
index f695c3e2a..246f018c5 100644
--- a/lib/pure/strscans.nim
+++ b/lib/pure/strscans.nim
@@ -258,7 +258,8 @@ macro scanf*(input: string; pattern: static[string]; results: varargs[typed]): b
       conds.add resLen
   result.add conditionsToIfChain(conds, idx, res, 0)
   if fullMatch:
-    result.add newCall(bindSym">=", idx, newCall(bindSym"len", input))
+    result.add newCall(bindSym"and", res,
+      newCall(bindSym">=", idx, newCall(bindSym"len", input)))
   else:
     result.add res