lib: make values API const-correct

[babeltrace.git] / include / babeltrace / trace-ir / trace.h

diff --git a/include/babeltrace/trace-ir/trace.h b/include/babeltrace/trace-ir/trace.h
index a2a05202eaea791e639ee1f024155ba2d5ea3a0f..9a1115cb797fc913a974314f40fc7e16d3dcd177 100644 (file)
--- a/include/babeltrace/trace-ir/trace.h
+++ b/include/babeltrace/trace-ir/trace.h
@@ -54,9 +54,9 @@ extern uint64_t bt_trace_get_environment_entry_count(struct bt_trace *trace);
 
 extern void bt_trace_borrow_environment_entry_by_index(
                struct bt_trace *trace, uint64_t index,
-               const char **name, struct bt_value **value);
+               const char **name, const struct bt_value **value);
 
-extern struct bt_value *bt_trace_borrow_environment_entry_value_by_name(
+extern const struct bt_value *bt_trace_borrow_environment_entry_value_by_name(
                struct bt_trace *trace, const char *name);
 
 extern struct bt_field_class *bt_trace_borrow_packet_header_field_class(