Hi,
We found a small Inline wierdness, today. It's not a bug, and it
doesn't affect any "normal" code. But it's probably worth knowing
about...
It looks like Inline sets the global variable $_ to a string that
looks something like:
" version : 5.6.1"
when it loads and checks its cached Config file.
Here's some code that demonstrates this behavior.
use Inline C;
greet('Ingy');
greet(42);
print "$_\n";
__END__
__C__
void greet(char* name) {
printf("Hello %s!\n", name);
}
Running this snippet (which is example #1 in the C Cookbook, plus the
line to print out $_), looks like this:
[khk: khkramer]$ perl test.pl
Hello Ingy!
Hello 42!
version : 5.6.1
We found this behavior while trying to diagnose some (unrelated) $_
strangeness in a bit of our code. Eventually boiling our test snippet
down to:
use XML::Comma;
print "$_\n";
Commenting out the 'use XML::Comma' returns "$_" to its natural,
undefined state. XML::Comma is usually configured to load some modules
that depend on Inline::C, so code that uses XML::Comma sees the
version-string behavior.
I'm not sure why, exactly, the assignment to $_ happens. But it looks
like line 627 of Inline.pm (version 0.43) might be where it does.
Kwin
