1 files changed, 4 insertions, 4 deletions
diff --git a/common/rfb/util.cxx b/common/rfb/util.cxx
index 48f59846..3c62b1df 100644
--- a/common/rfb/util.cxx
+++ b/common/rfb/util.cxx
@@ -40,7 +40,7 @@ namespace rfb {
     std::string out;
 
     va_start(ap, fmt);
-    len = vsnprintf(NULL, 0, fmt, ap);
+    len = vsnprintf(nullptr, 0, fmt, ap);
     va_end(ap);
 
     if (len < 0)
@@ -68,13 +68,13 @@ namespace rfb {
     start = src;
     do {
       stop = strchr(start, delimiter);
-      if (stop == NULL) {
+      if (stop == nullptr) {
         out.push_back(start);
       } else {
         out.push_back(std::string(start, stop-start));
         start = stop + 1;
       }
-    } while (stop != NULL);
+    } while (stop != nullptr);
 
     return out;
   }
@@ -621,7 +621,7 @@ namespace rfb {
   {
     struct timeval now;
 
-    gettimeofday(&now, NULL);
+    gettimeofday(&now, nullptr);
 
     return msBetween(then, &now);
   }