id summary reporter owner description type status milestone component version severity resolution keywords cc 1118 Custom validator for type T ignored when parsing vector Hugo Duncan Vladimir Prus "Having supplied a custom validator for type T, this is ignored by the validator for vector, which calls lexical_cast directly. I assume the validator for vector should call xparse to pick up the custom validator for the contained type." Bugs closed To Be Determined program_options Boost 1.34.1 Problem fixed