std.cfg: Added overlappingWriteFunction check to wcscpy().

cfg/std.cfg

@@ -4805,6 +4805,7 @@ The obsolete function 'gets' is called. With 'gets' you'll get a buffer overrun
     <returnValue type="wchar_t *"/>
     <noreturn>false</noreturn>
     <leak-ignore/>
+    <not-overlapping-data ptr1-arg="1" ptr2-arg="2" strlen-arg="2"/>
     <arg nr="1" direction="out">
       <not-null/>
     </arg>

test/cfg/std.cpp

@@ -30,6 +30,17 @@
 #include <functional>
 #include <bitset>
 
+wchar_t * overlappingWriteFunction_wcscpy(wchar_t *src, wchar_t *dest)
+{
+    // No warning shall be shown:
+    (void)wcscpy(dest, src);
+    const wchar_t * destBuf = dest;
+    // TODO-cppcheck-suppress overlappingWriteFunction  #10355
+    (void)wcscpy(dest, destBuf);
+    // cppcheck-suppress overlappingWriteFunction
+    return wcscpy(src, src);
+}
+
 wchar_t * overlappingWriteFunction_wcsncpy(wchar_t *buf, const std::size_t count)
 {
     // No warning shall be shown: