rfb: vsnprintf returns an int, not size_t

Fixes:

/home/shade/dev/tigervnc/common/rfb/util.cxx:55:13: error: comparison of unsigned expression < 0 is always false [-Werror,-Wtautological-compare]
    if (len < 0) {
        ~~~ ^ ~
1 error generated.

diff --git a/common/rfb/util.cxx b/common/rfb/util.cxx
index 22e00ffc37dd12e0b6457ef546ab412e8aa382f2..cfec2ef32eb50fbe254bfd67a4ec8aba2a38693b 100644 (file)
--- a/common/rfb/util.cxx
+++ b/common/rfb/util.cxx
@@ -44,7 +44,7 @@ namespace rfb {
 
   void CharArray::format(const char *fmt, ...) {
     va_list ap;
-    size_t len;
+    int len;
 
     va_start(ap, fmt);
     len = vsnprintf(NULL, 0, fmt, ap);