Does perl support in/out parameter subroutine?

[Hon Seng Phuah]

Hi,

I am quite new to perl development and have a question very stupid
question. I hope that someone can help me.

Does perl support in/out parameter subroutine? Like in C/C++, we have
a function callee:

a(&b); // variable b value will be change in function a.

[Jürgen Exner]

Hon Seng Phuah wrote:

Does perl support in/out parameter subroutine? Like in C/C++, we have
a function callee:

a(&b); // variable b value will be change in function a.

"In/out parameter", well, I've never heard that term before, but I am
guessing you mean call-by-reference or call-by-value-return.
Yes, Perl does support call by reference. See "perldoc perlreftut" for an
introduction how to handle references.

jue