1 files changed, 64 insertions, 0 deletions
diff --git a/main/src/main/cpp/lzo/tests/promote.c b/main/src/main/cpp/lzo/tests/promote.c
new file mode 100644
index 00000000..f516f28a
--- /dev/null
+++ b/main/src/main/cpp/lzo/tests/promote.c
@@ -0,0 +1,64 @@
+/* promote.c -- test intergral promotion
+
+   This file is part of the LZO real-time data compression library.
+
+   Copyright (C) 1996-2017 Markus Franz Xaver Johannes Oberhumer
+   All Rights Reserved.
+
+   The LZO library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU General Public License as
+   published by the Free Software Foundation; either version 2 of
+   the License, or (at your option) any later version.
+
+   The LZO library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with the LZO library; see the file COPYING.
+   If not, write to the Free Software Foundation, Inc.,
+   51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+
+   Markus F.X.J. Oberhumer
+   <markus@oberhumer.com>
+   http://www.oberhumer.com/opensource/lzo/
+ */
+
+#include <stdio.h>
+
+#if defined(_MSC_VER) && (_MSC_VER+0 >= 1000)
+   /* disable "unreachable code" warnings */
+#  pragma warning(disable: 4702)
+#endif
+
+int main(int argc, char *argv[])
+{
+    unsigned char c;
+    int s;
+
+    if (argc < 0 && argv == NULL)   /* avoid warning about unused args */
+        return 0;
+
+    c = (unsigned char) (1 << (8 * sizeof(char) - 1));
+    s = 8 * (int) (sizeof(int) - sizeof(char));
+
+    printf("Integral promotion: ");
+    {
+    const int u = (c << s) > 0;
+    if (u)
+    {
+        printf("Classic C (unsigned-preserving)\n");
+        printf("%d %d %uU\n", c, s, (unsigned)c << s);
+        return 1;
+    }
+    else
+    {
+        printf("ANSI C (value-preserving)\n");
+        printf("%d %d %d\n", c, s, c << s);
+        return 0;
+    }
+    }
+}
+
+/* vim:set ts=4 sw=4 et: */