...

examples/device_exam.cpp

@@ -21,6 +21,7 @@ int main()
             i = ii;
             return AdcDeviceErrorCode::ERROR_OK;
         });
+
     // dev.addAttr(
     //     id1, [&i]() -> adc_result_t<int> { return i; },
     //     [&i](int ii) -> adc_error_t {
@@ -49,6 +50,14 @@ int main()
     //     // }
     // );
 
+    std::println("add RW-attr with id='{}' (val={})", id3, s);
+    dev.addCharRangeAttr(
+        id3, [&s]() -> adc_result_t<std::string> { return s; },
+        [&s](std::string const& sv) -> adc_error_t {
+            s = sv;
+            return {};
+        });
+
     std::print("get '{}'-attr value as native int:\t", id1);
     adc_result_t<int> ri = dev[id1];
     if (ri) {
@@ -115,6 +124,14 @@ int main()
         std::println("OK");
     }
 
+    std::print("get '{}'-attr value as native string:\t", id3);
+    rs = dev[id3];
+    if (rs) {
+        std::println("dev[{}] = {}", id3, rs.value());
+    } else {
+        std::println("cannot get dev[{}] as string: {}", id3, rs.error().message());
+    }
+
 
     return 0;
 }