Add test for HDstrcasestr macro (#2115)

1 files changed, 22 insertions, 0 deletions

diff --git a/src/H5system.c b/src/H5system.c
index d6d734f..ecaa0f6 100644
--- a/src/H5system.c
+++ b/src/H5system.c
@@ -961,6 +961,28 @@ H5_strndup(const char *s, size_t n)
 done:
     FUNC_LEAVE_NOAPI(ret_value)
 }
+
+/*-------------------------------------------------------------------------
+ * Function:    Wstrcasestr_wrap
+ *
+ * Purpose:     Windows wrapper function for strcasestr to retain GNU
+ *              behavior where searching for an empty substring returns the
+ *              input string being searched. StrStrIA on Windows does not
+ *              exhibit this same behavior.
+ *
+ * Return:      Pointer to input string if 'needle' is the empty substring
+ *              Otherwise, returns StrStrIA(haystack, needle)
+ *
+ *-------------------------------------------------------------------------
+ */
+char *
+Wstrcasestr_wrap(const char *haystack, const char *needle)
+{
+    if (needle && !*needle)
+        return haystack;
+    else
+        return StrStrIA(haystack, needle);
+}
 #endif /* H5_HAVE_WIN32_API */
 
 /* dirname() and basename() are not easily ported to Windows and basename