01-21-2009
Zaxon,
Its upto perl interpretor to decide whether variable type is floating ,integer or string.
For instance :
$i =5 ; (For perl interpreter it is a integer datatype)
$i =5.2 ; (For perl interpreter it is a floating datatype)
$i ="MY Perl" ; (For perl interpreter it is a String datatype)
So basically it is all about declaration and assigning value to scalar value will help you to understand the type of data type it is.
Cheers,
gehlnar
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LEARN ABOUT DEBIAN
netsds::util::types
NetSDS::Util::Types(3pm) User Contributed Perl Documentation NetSDS::Util::Types(3pm)
NAME
NetSDS::Util::Types - type checking routines
SYNOPSIS
use NetSDS::Util::Types;
# Check if variable contains integer value
if (is_int($var)) {
$var++;
} else {
print "Value is not integer!";
}
DESCRIPTION
"NetSDS::Util::Types" module contains functions for checking data for being of exact data types.
EXPORTED FUNCTIONS
is_int($var) - check if parameter is integer
Check if given parameter is integer
is_float([...]) - check if parameter is float number
Check if given parameter is float number
is_date([...]) - check if parameter is date string
Return 1 if parameter is date string
is_binary([...]) - check for binary content
Return 1 if parameter is non text.
is_ref_scalar($ref) - check if reference to scalar value
Return true if parameter is a scalar reference.
my $var = 'Scalar string';
if (is_ref_scalar($var)) {
print "It's scalar value";
}
is_ref_array($ref) - check if reference to array
Return true if parameter is an array reference.
is_ref_hash($ref) - check if hashref
Return true if parameter is a hash reference.
is_ref_code($ref) - check if code reference
Return true if parameter is a code reference.
is_ref_obj($ref, [$class_name]) - check if blessed object
Return true if parameter is an object.
EXAMPLES
None
BUGS
None
TODO
Add more functions.
SEE ALSO
None.
AUTHORS
Valentyn Solomko <pere@pere.org.ua>
Michael Bochkaryov <misha@rattler.kiev.ua>
perl v5.12.4 2011-08-27 NetSDS::Util::Types(3pm)