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-rw-r--r--libs/ardour/io.cc2
1 files changed, 1 insertions, 1 deletions
diff --git a/libs/ardour/io.cc b/libs/ardour/io.cc
index ad376628db..6b0b08363d 100644
--- a/libs/ardour/io.cc
+++ b/libs/ardour/io.cc
@@ -98,7 +98,7 @@ static double direct_gain_to_control (gain_t gain) {
static bool sort_ports_by_name (Port* a, Port* b) {
unsigned int last_digit_position_a = a->name().size();
- std::string::const_reverse_iterator r_iterator = a->name().rbegin();
+ std::string::reverse_iterator r_iterator = a->name().rbegin();
while (r_iterator!=a->name().rend() and Glib::Unicode::isdigit(*r_iterator)) {
r_iterator++; last_digit_position_a--;