Make n_imus back to int

Author: alexbeattie42

OpenSim/Common/XsensDataReader.cpp

@@ -55,12 +55,12 @@ DataAdapter::OutputTables XsensDataReader::extendRead(
             _settings.get_rotation_representation();
     const std::string prefix = _settings.get_trial_prefix();
 
-    const size_t n_imus = _settings.getProperty_ExperimentalSensors().size();
+    const int n_imus = _settings.getProperty_ExperimentalSensors().size();
 
     // Prepare all the file handles
     // format: name, filename
     std::vector<std::pair<std::string, std::string>> imuFiles;
-    for (size_t index = 0; index < n_imus; ++index) {
+    for (int index = 0; index < n_imus; ++index) {
         std::string prefix = _settings.get_trial_prefix();
         const ExperimentalSensor& nextItem =
                 _settings.get_ExperimentalSensors(index);