The getargs::long module allows usage of named parameters in function calls, along with optional argument type-checking. it provides an easy way to get at the parameters within the routine, and yields concise descriptions for the common cases of all-mandatory and all-optional parameter lists.

the validation of arguments can be done by a structure-driven routine getargs() which is fine for infrequently called routines (but should be slower), or via a dedicated routine created and compiled on the fly the first time it is needed, by using the cgetargs() family (expected to be faster).

the log::agent module is used to report errors, which leaves to the application the choice of the final logging method: to a file, to stderr, or to syslog.

note that this module is still in the alpha stage of development, and the interface to it may change: indeed, it changed between 0.1.2 and 0.1.3.