Replace idx_is_not functor by a C++11 lambda.

[ginac.git] / ginac / indexed.cpp

diff --git a/ginac/indexed.cpp b/ginac/indexed.cpp
index 55c9768d9445d3555ab6486a8267ec8b4d273605..d5f7bf85eccaeaa6fc92736a3530afc4939dfe46 100644 (file)
--- a/ginac/indexed.cpp
+++ b/ginac/indexed.cpp
@@ -243,12 +243,6 @@ bool indexed::info(unsigned inf) const
        return inherited::info(inf);
 }
 
-struct idx_is_not : public std::binary_function<ex, unsigned, bool> {
-       bool operator() (const ex & e, unsigned inf) const {
-               return !(ex_to<idx>(e).get_value().info(inf));
-       }
-};
-
 bool indexed::all_index_values_are(unsigned inf) const
 {
        // No indices? Then no property can be fulfilled
@@ -256,7 +250,8 @@ bool indexed::all_index_values_are(unsigned inf) const
                return false;
 
        // Check all indices
-       return find_if(seq.begin() + 1, seq.end(), bind2nd(idx_is_not(), inf)) == seq.end();
+       return find_if(seq.begin() + 1, seq.end(),
+                      [inf](const ex & e) { return !(ex_to<idx>(e).get_value().info(inf)); }) == seq.end();
 }
 
 int indexed::compare_same_type(const basic & other) const