Chas Owens wrote:
On 7/24/07, Joseph L. Casale <[EMAIL PROTECTED]> wrote:
I have two questions, is it correct to execute subs like this:
Sub_1 (sub_2))? I am trying to pass the return value of sub_2 into
sub_1.
Also, I have been looking at perldoc etc to limit the # of digits
returned after a decimal, it looks difficult? Am I overlooking a
simple method?
Yes, a subroutine call is an expression, so it can be used as an
argument to another subroutine. There are several ways to round a
number, the easiest (especially if you don't care how it is rounded)
is to use sprintf or printf:
perl -e 'printf "%.2f\n", 100.12345'
You can find out more about the formating specifiers in perldoc -f
sprintf
If you really don't care how a number is rounded, then just replace
it by zero.
Rob
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