Just want to note that example may be fixed as follows:

my $x = (1 - 0.99) * 100 ;
print $x, ("$x" - int($x)) ? " has fraction" : " no fraction", "\n" ;

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In reply to Re^4: How to determine whether a number has a decimal component? by zwon
in thread How to determine whether a number has a decimal component? by Xenofur

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