Here's the case that caused me to investigate and add this change in the first place:

% $PERL-5.34.0 -MMath::GMP -wle 'local $SIG{FPE} = sub { die "fpe" }; 
+$z=Math::GMP->new(1); print $z / 0'
Maximal count of pending signals (120) exceeded at -e line 1.
fpe at -e line 1.
% 
% $PERL-5.36.0 -MMath::GMP -wle 'local $SIG{FPE} = sub { die "fpe" }; 
+$z=Math::GMP->new(1); print $z / 0'
fpe at -e line 1.
%

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The original ticket was Catching SIGFPE. Not sure why my example above isn't reproducing that, but in my real-world code this was stopping me from getting a stack trace to find where the division by zero was occurring.

Despite the name, this exception is primarily raised for integer division by zero, so the Inline::C example needs s{float}{int}g to show it. See why was sigfpe used for integer arithmetic exceptions for some more detail.

Perl itself catches these when it performs a division, so you'll only see it from non-perl code linked to your program.

In reply to Re: FPE not deferred in 5.36 by hv
in thread FPE not deferred in 5.36 by choroba

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