Fix a warning

a85e1aba · louiz’ · 641166b0 · a85e1aba
Commit a85e1aba authored Nov 14, 2013 by louiz’
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src/xmpp/xmpp_stanza.cpp src/xmpp/xmpp_stanza.cpp +1 -1

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--- a/src/xmpp/xmpp_stanza.cpp
+++ b/src/xmpp/xmpp_stanza.cpp
@@ -42,7 +42,7 @@ std::string xml_unescape(const std::string& data)
  std::string res;
  res.reserve(data.size());
  const char* str = data.c_str();
-  while (str && *str && (str - data.c_str()) < data.size())
+  while (str && *str && static_cast<size_t>(str - data.c_str()) < data.size())
    {
      if (*str == '&')
        {