The Perl and Raku Conference 2025: Greenville, South Carolina - June 27-29 Learn more

# [[[ HEADER ]]]
use strict;
our $VERSION = 0.014_000;
# [[[ OO INHERITANCE ]]]
# [[[ CRITICS ]]]
## no critic qw(ProhibitUselessNoCritic ProhibitMagicNumbers RequireCheckedSyscalls) # USER DEFAULT 1: allow numeric values & print operator
## no critic qw(RequireInterpolationOfMetachars) # USER DEFAULT 2: allow single-quoted control characters & sigils
## no critic qw(Capitalization ProhibitMultiplePackages ProhibitReusedNames) # SYSTEM DEFAULT 3: allow multiple & lower case package names
# [[[ SUB-TYPES ]]]
# an integer is a whole number, it has no floating-pointer (fractional/decimal) component
package # hide from PAUSE indexing
integer;
use strict;
# method with integer return type
package # hide from PAUSE indexing
integer::method;
use strict;
use parent -norequire, qw(method);
package # hide from PAUSE indexing
constant_integer;
use strict;
# [[[ PRE-DECLARED TYPES ]]]
package # hide from PAUSE indexing
boolean;
package # hide from PAUSE indexing
unsigned_integer;
package # hide from PAUSE indexing
number;
package # hide from PAUSE indexing
character;
package # hide from PAUSE indexing
string;
# [[[ SWITCH CONTEXT BACK TO PRIMARY PACKAGE ]]]
use strict;
# [[[ EXPORTS ]]]
use RPerl::Exporter 'import';
our @EXPORT = qw(integer_CHECK integer_CHECKTRACE integer_to_boolean integer_to_unsigned_integer integer_to_number integer_to_character integer_to_string);
our @EXPORT_OK = qw(integer_typetest0 integer_typetest1);
# [[[ TYPE-CHECKING ]]]
sub integer_CHECK {
{ my void $RETURN_TYPE };
( my $possible_integer ) = @ARG;
if ( not( defined $possible_integer ) ) {
# croak("\nERROR EIV00, TYPE-CHECKING MISMATCH, PERLOPS_PERLTYPES:\ninteger value expected but undefined/null value found,\ncroaking");
die("\nERROR EIV00, TYPE-CHECKING MISMATCH, PERLOPS_PERLTYPES:\ninteger value expected but undefined/null value found,\ndying\n");
}
if ( not( main::RPerl_SvIOKp($possible_integer) ) ) {
# croak("\nERROR EIV01, TYPE-CHECKING MISMATCH, PERLOPS_PERLTYPES:\ninteger value expected but non-integer value found,\ncroaking");
die("\nERROR EIV01, TYPE-CHECKING MISMATCH, PERLOPS_PERLTYPES:\ninteger value expected but non-integer value found,\ndying\n");
}
return;
}
sub integer_CHECKTRACE {
{ my void $RETURN_TYPE };
( my $possible_integer, my $variable_name, my $subroutine_name ) = @ARG;
# RPerl::diag('in RPerl::DataType::Integer::integer_CHECKTRACE(), received $possible_integer = ' . $possible_integer . "\n");
# RPerl::diag('in RPerl::DataType::Integer::integer_CHECKTRACE(), received $variable_name = ' . $variable_name . "\n");
# RPerl::diag('in RPerl::DataType::Integer::integer_CHECKTRACE(), received $subroutine_name = ' . $subroutine_name . "\n");
if ( not( defined $possible_integer ) ) {
# RPerl::diag('in RPerl::DataType::Integer::integer_CHECKTRACE(), about to croak due to undefined input' . "\n");
# croak( "\nERROR EIV00, TYPE-CHECKING MISMATCH, PERLOPS_PERLTYPES:\ninteger value expected but undefined/null value found,\nin variable $variable_name from subroutine $subroutine_name,\ncroaking" );
die( "\nERROR EIV00, TYPE-CHECKING MISMATCH, PERLOPS_PERLTYPES:\ninteger value expected but undefined/null value found,\nin variable $variable_name from subroutine $subroutine_name,\ndying\n" );
}
if ( not( main::RPerl_SvIOKp($possible_integer) ) ) {
# RPerl::diag('in RPerl::DataType::Integer::integer_CHECKTRACE(), about to croak due to non-integer input' . "\n");
# croak( "\nERROR EIV01, TYPE-CHECKING MISMATCH, PERLOPS_PERLTYPES:\ninteger value expected but non-integer value found,\nin variable $variable_name from subroutine $subroutine_name,\ncroaking" );
die( "\nERROR EIV01, TYPE-CHECKING MISMATCH, PERLOPS_PERLTYPES:\ninteger value expected but non-integer value found,\nin variable $variable_name from subroutine $subroutine_name,\ndying\n" );
}
return;
}
# [[[ BOOLEANIFY ]]]
sub integer_to_boolean {
{ my boolean $RETURN_TYPE };
( my integer $input_integer ) = @ARG;
# integer_CHECK($input_integer);
integer_CHECKTRACE( $input_integer, '$input_integer', 'integer_to_boolean()' );
if ( $input_integer == 0 ) { return 0; }
else { return 1; }
return;
}
# [[[ UNSIGNED INTEGERIFY ]]]
sub integer_to_unsigned_integer {
{ my unsigned_integer $RETURN_TYPE };
( my integer $input_integer ) = @ARG;
# integer_CHECK($input_integer);
integer_CHECKTRACE( $input_integer, '$input_integer', 'integer_to_unsigned_integer()' );
return abs $input_integer;
}
# [[[ NUMBERIFY ]]]
sub integer_to_number {
{ my number $RETURN_TYPE };
( my integer $input_integer ) = @ARG;
# integer_CHECK($input_integer);
integer_CHECKTRACE( $input_integer, '$input_integer', 'integer_to_number()' );
return $input_integer * 1.0;
}
# [[[ CHARACTERIFY ]]]
sub integer_to_character {
{ my character $RETURN_TYPE };
( my integer $input_integer ) = @ARG;
# integer_CHECK($input_integer);
integer_CHECKTRACE( $input_integer, '$input_integer', 'integer_to_character()' );
my string $tmp_string = integer_to_string($input_integer);
if ( $tmp_string eq q{} ) { return q{}; }
else { return substr $tmp_string, 0, 1; }
return;
}
# [[[ STRINGIFY ]]]
sub integer_to_string {
{ my string $RETURN_TYPE };
{ my string $RETURN_TYPE };
( my integer $input_integer ) = @ARG;
# integer_CHECK($input_integer);
integer_CHECKTRACE( $input_integer, '$input_integer', 'integer_to_string()' );
# RPerl::diag("in PERLOPS_PERLTYPES integer_to_string(), received \$input_integer = $input_integer\n");
# RPerl::diag("in PERLOPS_PERLTYPES integer_to_string()...\n");
# DEV NOTE: disable old stringify w/out underscores
# return "$input_integer";
my integer $is_negative = 0;
if ( $input_integer < 0 ) { $is_negative = 1; }
my string $retval = reverse "$input_integer";
if ($is_negative) { chop $retval; } # remove negative sign
$retval =~ s/(\d{3})/$1_/gxms;
if ( ( substr $retval, -1, 1 ) eq '_' ) { chop $retval; }
$retval = reverse $retval;
if ($is_negative) { $retval = q{-} . $retval; }
# RPerl::diag('in PERLOPS_PERLTYPES integer_to_string(), have $retval = ' . q{'} . $retval . q{'} . "\n");
return $retval;
}
# [[[ TYPE TESTING ]]]
sub integer_typetest0 {
{ my integer $RETURN_TYPE };
my integer $retval = ( 21 / 7 ) + main::RPerl__DataType__Integer__MODE_ID(); # return integer (not number) value, don't do (22 / 7) etc.
# RPerl::diag("in PERLOPS_PERLTYPES integer_typetest0(), have \$retval = $retval\n");
return ($retval);
}
sub integer_typetest1 {
{ my integer $RETURN_TYPE };
( my integer $lucky_integer ) = @ARG;
# integer_CHECK($lucky_integer);
integer_CHECKTRACE( $lucky_integer, '$lucky_integer', 'integer_typetest1()' );
# RPerl::diag('in PERLOPS_PERLTYPES integer_typetest1(), received $lucky_integer = ' . integer_to_string($lucky_integer) . "\n");
return ( ( $lucky_integer * 2 ) + main::RPerl__DataType__Integer__MODE_ID() );
}
1; # end of class