guard for single inclusion

2014-04-10 01:08:12 -07:00
parent 372e7d42f9
commit 1705b5a65e
1 changed files with 4 additions and 0 deletions
--- a/examples/util/util.isph
+++ b/examples/util/util.isph
@@ -1,5 +1,9 @@
+#ifndef UTIL_ISPH
+#define UTIL_ISPH

 // utility function to read the value of programCount from C/C++
 export uniform int32 get_programCount() {
  return programCount;
 }
+
+#endif // UTIL_ISPH