Perl 运算符 eqv 不起作用

Question

Below code is not working but I don't know why.

my $q = (1, 2) eqv (1, 3);
print "$q \n";

I'm using Perl v5.14. And also what is the difference between "eqv" and "==" ?

Answer 1

There is no operator like eqv in Perl5. I think you are looking for eq operator.

To see the difference between eq and == operator, see this:

perl string compare with “eq” vs “==”

eq vs. ==

Read this for more information:

What's the deal with all the different Perl 6 equality operators

Comparison of the Perl equality operators