Make some functors adaptable and related small stuff.

[features.git] / src / frontends / xforms / FormForks.C

diff --git a/src/frontends/xforms/FormForks.C b/src/frontends/xforms/FormForks.C
index b0a23bf87f972e046936a0caf29870b555661c24..83d3392defea8d937e8a8be215d13a7360ed9073 100644 (file)
--- a/src/frontends/xforms/FormForks.C
+++ b/src/frontends/xforms/FormForks.C
@@ -250,10 +250,10 @@ ButtonPolicy::SMInput FormForks::input_browser_children()
 
 namespace {
 
-class FindPID {
+class FindPID : public std::unary_function<string, bool> {
 public:
        FindPID(string const & pid) : pid_(pid) {}
-       bool operator()(string const & line)
+       bool operator()(string const & line) const
        {
                if (line.empty())
                        return false;