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Problem: You can't write to protocol or model safely because one of the force functions wasn't used. You might end up changing variables and constants you didn't mean to change. (They might have fixed that in 5.24?)

use strict; use warnings; use feature qw( say ); use Inline C => <<'__EOS__'; void testing(char* s) { s[0] = 'y'; } __EOS__ my $x = "x"; my $y = $x; say "$x-$y"; testing($y); say "$x-$y";
x-x y-y <-- Changed both $x and $y
for (1..2) { my $y = "x"; say $y; testing($y); }
x y <-- Changed the constant!

Note: The caller will need to do s/\0.*// for $protocol, $model;

In reply to Re^4: Passing integer pointer in XS? (OUTPUT:) by ikegami
in thread Passing integer pointer in XS? by martin67

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