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Improve error message when parameter value is missing #3093

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Improve error message when parameter value is missing #3093

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5bf6790
Improve error message when parameter value is missing
yadnyeshwar Mar 11, 2026
ffd5261
Fix formatting for parameter value exception message
yadnyeshwar Mar 12, 2026
74d642d
Fix cpplint line length for parameter exception message
yadnyeshwar Mar 12, 2026
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4 changes: 3 additions & 1 deletion rclcpp/src/rclcpp/parameter_map.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -152,7 +152,9 @@ rclcpp::parameter_value_from(const rcl_variant_t * const c_param_value)
return ParameterValue(strings);
}

throw InvalidParameterValueException("No parameter value set");
throw InvalidParameterValueException(
"Invalid parameter value: rcl parameter structure"
" contains no value");
}

ParameterMap
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