Adding upstream version 4:7.4.7.upstream/4%7.4.7upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 22 insertions, 0 deletions

diff --git a/basic/qa/basic_coverage/test_string_overflow_safe.bas b/basic/qa/basic_coverage/test_string_overflow_safe.bas
new file mode 100644
index 000000000..f245e14ab
--- /dev/null
+++ b/basic/qa/basic_coverage/test_string_overflow_safe.bas
@@ -0,0 +1,22 @@
+Option Explicit
+
+Function doUnitTest As String
+    ' Trying to create too long string should generate proper BASIC overflow error.
+    ' Longest possible string is 2147483638 wchar_t (2G - 10).
+    ' This tries to create string with 2G wchar_t. If it does not overflow, test fails.
+    ' If overflow is not safe, it segfaults.
+    On Error GoTo errorHandler
+    Dim s As String, i As Integer
+    s = "0"
+    For i=1 To 31
+    s = s & s
+    Next i
+    doUnitTest = "FAIL"
+    Exit Function
+errorHandler:
+    If ( Err <> 6 ) Then
+        doUnitTest = "FAIL"
+    Else
+        doUnitTest = "OK"
+    Endif
+End Function