rfnoc: Replace some [] with .at() in radio_ctrl_impl

This makes it easier to detect errors in derived classes that expect
getters in radio_ctrl_impl to also do error checking.

1 files changed, 8 insertions, 8 deletions

diff --git a/host/lib/rfnoc/radio_ctrl_impl.cpp b/host/lib/rfnoc/radio_ctrl_impl.cpp
index 66040f67c..f3d6cd049 100644
--- a/host/lib/rfnoc/radio_ctrl_impl.cpp
+++ b/host/lib/rfnoc/radio_ctrl_impl.cpp
@@ -191,42 +191,42 @@ double radio_ctrl_impl::get_rate() const
 
 std::string radio_ctrl_impl::get_tx_antenna(const size_t chan) /* const */
 {
-    return _tx_antenna[chan];
+    return _tx_antenna.at(chan);
 }
 
 std::string radio_ctrl_impl::get_rx_antenna(const size_t chan) /* const */
 {
-    return _rx_antenna[chan];
+    return _rx_antenna.at(chan);
 }
 
 double radio_ctrl_impl::get_tx_frequency(const size_t chan) /* const */
 {
-    return _tx_freq[chan];
+    return _tx_freq.at(chan);
 }
 
 double radio_ctrl_impl::get_rx_frequency(const size_t chan) /* const */
 {
-    return _rx_freq[chan];
+    return _rx_freq.at(chan);
 }
 
 double radio_ctrl_impl::get_tx_gain(const size_t chan) /* const */
 {
-    return _tx_gain[chan];
+    return _tx_gain.at(chan);
 }
 
 double radio_ctrl_impl::get_rx_gain(const size_t chan) /* const */
 {
-    return _rx_gain[chan];
+    return _rx_gain.at(chan);
 }
 
 double radio_ctrl_impl::get_tx_bandwidth(const size_t chan) /* const */
 {
-    return _tx_bandwidth[chan];
+    return _tx_bandwidth.at(chan);
 }
 
 double radio_ctrl_impl::get_rx_bandwidth(const size_t chan) /* const */
 {
-    return _rx_bandwidth[chan];
+    return _rx_bandwidth.at(chan);
 }
 
 /******************************************************************************