mirror of
https://github.com/Stichting-MINIX-Research-Foundation/pkgsrc-ng.git
synced 2025-08-03 17:59:07 -04:00
16 lines
1005 B
Plaintext
16 lines
1005 B
Plaintext
This module provides various type-testing functions. These are intended for
|
|
functions that, unlike most Perl code, care what type of data they are
|
|
operating on. For example, some functions wish to behave differently
|
|
depending on the type of their arguments (like overloaded functions in C++).
|
|
|
|
There are two flavours of function in this module. Functions of the first
|
|
flavour only provide type classification, to allow code to discriminate
|
|
between argument types. Functions of the second flavour package up the most
|
|
common type of type discrimination: checking that an argument is of an
|
|
expected type. The functions come in matched pairs, of the two flavours,
|
|
and so the type enforcement functions handle only the simplest requirements
|
|
for arguments of the types handled by the classification functions.
|
|
Enforcement of more complex types may, of course, be built using the
|
|
classification functions, or it may be more convenient to use a module
|
|
designed for the more complex job, such as Params::Validate.
|