PVS-Studio warning V528 for Firefox

nsresult
SVGNumberList::SetValueFromString(const nsAString& aValue)
{
  ...
  const char *token = str.get();
  if (token == '\0') {
    return NS_ERROR_DOM_SYNTAX_ERR; // nothing between commas
  }
  ...
}

Most likely this is what should be written here: (*token == '\0')

This suspicious code was found in Firefox project by PVS-Studio static code analyzer.
Warning message is:
V528 It is odd that pointer to 'char' type is compared with the '\0' value. Probably meant: *token == '\0'. svgnumberlist.cpp 96

PVS-Studio is a static analyzer for detecting bugs in the source code of applications written in C, C++, C++11, C++/CX. Site: http://www.viva64.com/en/pvs-studio/