Perl | Math::BigInt->bneg() method

Math::BigInt module in Perl provides objects that represent integers with arbitrary precision and overloaded arithmetical operators.

bneg() method of Math::BigInt module is used to change the value of input to its negative value and does nothing for zero or NAN values

Syntax: Math::BigInt->bneg()

Parameter: No Parameter

Returns: object with value negated value

Example 1:

#!/usr/bin/perl

# Import Math::BigInt module
use Math::BigInt;

# Specify number
$num = 78215936043546;

# Create BigInt object
$x = Math::BigInt->new($num);

$x->bneg();

print($x);

Output:

-78215936043546

Example 2:

#!/usr/bin/perl

# Import Math::BigInt module
use Math::BigInt;

# Specify number
$num = -78215936043546;

# Create BigInt object
$x = Math::BigInt->new($num);

$x->bneg();

print($x);

Output:

78215936043546

Example 3:

#!/usr/bin/perl

# Import Math::BigInt module
use Math::BigInt;

# Specify number
$num = 0;
$num1 = NaN;

# Create BigInt object
$x = Math::BigInt->new($num);
$y = Math::BigInt->new($num1);

$x->bneg();
$y->bneg();

print("$x\n");
print($y);

Output:

0
NaN