Menelaos Karavelas 2930d649ae [policies][is_valid] add a new visit policy for the is_valid algorithm: ...

the failing_reason_policy policy; this policy is useful for detecting the
reason for which is_valid fails, as well as for having a convenient message
describing the type of failure and, possibly, information related to the failure;
this policy can be used to implement the is_valid_reason algorithm;

2015-02-19 23:13:09 +02:00

..

boost

[policies][is_valid] add a new visit policy for the is_valid algorithm:

2015-02-19 23:13:09 +02:00