id	summary	reporter	owner	description	type	status	milestone	component	version	severity	resolution	keywords	cc
6050	Make spirit::transform_attribute::post return bool instead of void	oakad@…	Joel de Guzman	"Currently, when doing attribute transformations, spirit::qi assumes that if ""Transformed"" attribute parsing succeedes, then assignment to ""Exposed"" attribute value will inevitably succeed as well, hence transform_attribute::post return value is not provided nor checked for.

However, there are many classes of problems (especially those involving restricted numeric types, such as ranges and strongly typed enums) which can benefit from recoverable parser failures during attribute transformation, if post() was allowed to signal a failure.

The proposed patch to spirit::qi is attached."	Patches	closed	To Be Determined	spirit	Boost 1.47.0	Problem	invalid		hkaiser@…