bindings: cxx: make bitset_cmp::operator() const

This fixes build problems with clang and libc++ and such constness is
now required by C++17 (see https://cplusplus.github.io/LWG/issue2542).

Signed-off-by: Michael Beach <michaelb@ieee.org>
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>

diff --git a/bindings/cxx/line_bulk.cpp b/bindings/cxx/line_bulk.cpp
index c93f364b47f30b828a368d59c1d69e67e4dc731e..e52d33dc549ac5c5bba65b080913aa24a1039d53 100644 (file)
--- a/bindings/cxx/line_bulk.cpp
+++ b/bindings/cxx/line_bulk.cpp
@@ -29,7 +29,7 @@ const ::std::map<int, int> reqtype_mapping = {
 
 struct bitset_cmp
 {
-       bool operator()(const ::std::bitset<32>& lhs, const ::std::bitset<32>& rhs)
+       bool operator()(const ::std::bitset<32>& lhs, const ::std::bitset<32>& rhs) const
        {
                return lhs.to_ulong() < rhs.to_ulong();
        }