Provides routines for generating error messages. Its subroutines generally report errors from the perspective of the calling program. It has the following functions.
carp msg
Warns of an error; reports the error as having occurred in the calling routine, not in the routine that contains the carp.
Use Carp; carp "text of error message";
cluck msg
Warns of errors and prints a stack backtrace; reports the error as having occurred in the calling routine. Not exported by default.
use Carp qw(cluck); cluck "text of error message";
confess msg
Dies and prints a stack backtrace. Reports the error as having occurred at the point where confess was called.
croak msg
Dies and reports error as having occurred in the calling routine.