fix crash on multiplying large numbers to an empty string (close #209)

itchyny · Feb 19, 2023 · 1a32db9 · 1a32db9
1 parent 54b7644
commit 1a32db9
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Showing 2 changed files with 9 additions and 2 deletions.
diff --git a/cli/test.yaml b/cli/test.yaml
@@ -2647,9 +2647,16 @@
 
 - name: multiply empty string
   args:
-    - '7 * ""'
+    - '(-9223372036854775808, -1, 0, 0.001, 0.999, 1, 7, 9223372036854775807) * ""'
   input: 'null'
   expected: |
+    null
+    null
+    null
+    ""
+    ""
+    ""
+    ""
     ""
 
 - name: multiply objects

diff --git a/operator.go b/operator.go
@@ -436,7 +436,7 @@ func repeatString(s string, n float64) any {
 	if n <= 0.0 || len(s) > 0 && n > float64(0x10000000/len(s)) || math.IsNaN(n) {
 		return nil
 	}
-	if n < 1.0 {
+	if int(n) < 1 {
 		return s
 	}
 	return strings.Repeat(s, int(n))