@let: tests for variable clearing.

* test/let1.awk: Add tests confirming that let variables
without initializers are set to the correct initial value
that makes them appear unassigned.

1 files changed, 33 insertions, 0 deletions

diff --git a/test/let1.awk b/test/let1.awk
index c7e98468..94a1a681 100644
--- a/test/let1.awk
+++ b/test/let1.awk
@@ -37,3 +37,36 @@ BEGIN {
     @let (x = x + 1, x = x + 1)
        print "b3", l3 "-" x
 }
+
+# test clearing uninitialized variables
+
+function f4()
+{
+  @let (i) for (i = 0; i < 2; i++) {
+    @let (a, b, c) {
+      if (a != 0 || a != "")
+        exit 1
+      if (b != 0 || b != "")
+        exit 1
+      if (c != 0 || c != "")
+        exit 1
+      a = b = c = 1
+    }
+  }
+}
+
+BEGIN { f4() }
+
+BEGIN {
+  @let (i) for (i = 0; i < 2; i++) {
+    @let (a, b, c) {
+      if (a != 0 || a != "")
+        exit 1
+      if (b != 0 || b != "")
+        exit 1
+      if (c != 0 || c != "")
+        exit 1
+      a = b = c = 1
+    }
+  }
+}