NAME
SPVM::NumberUtil - Number Utilities
SYNOPSYS
use SPVM::NumberUtil;
my $int8_max = SPVM::NumberUtil->INT8_MAX();
my $int16_max = SPVM::NumberUtil->INT16_MAX();
my $int32_max = SPVM::NumberUtil->INT32_MAX();
my $int64_max = SPVM::NumberUtil->INT64_MAX();
my $rand = SPVM::NumberUtil->rand();DESCRIPTION
Number utilities.
STATIC METHODS
INT8_MIN
sub INT8_MIN : byte ()Return -128. The minimal value of the signed 8bit integer.
INT8_MAX
INT8_MAX : byte ()Return 127. The maximum value of the signed 8bit integer.
INT16_MIN
sub INT16_MIN : short ()Return -32768. The minimal value of the signed 16bit integer.
INT16_MAX
sub INT16_MAX : short ()Return 32767. The maximum value of the signed 16bit integer .
INT32_MIN
sub INT32_MIN : int ()Return -2147483648. The minimal value of the signed 32bit integer.
INT32_MAX
sub INT32_MAX : int ()Return 2147483647. The maximum value of the signed 32bit integer.
INT64_MIN
sub INT64_MIN : long ()Return -9223372036854775808. The minimal value of signed 64bit integer.
INT64_MAX
sub INT64_MAX : long ()Return 9223372036854775807. The maximum value of the signed 64bit integer.
UINT8_MAX
sub UINT8_MAX : byte ()Return -1. The same bit expression of 0xFF in the unsigned 8bit integer in 2's complement.
UINT16_MAX
sub UINT16_MAX : short ()Return -1. The same bit expression of 0xFFFF in the unsigned 16bit integer in 2's complement.
UINT32_MAX
sub UINT32_MAX : int ()Return -1. The same bit expression of 0xFFFFFFFF in the unsigned 32bit integer in 2's complement.
UINT64_MAX
sub UINT64_MAX : long ()Return -1. The same bit expression of 0xFFFFFFFFFFFFFFFF in the unsigned 64bit integer in 2's complement.
FLT_MIN
sub FLT_MIN : float ()Return the value of FLT_MIN macro defined in float.h C header.
FLT_MAX
sub FLT_MAX : float ()Return the value of FLT_MAX macro defined in float.h C header.
DBL_MIN
sub DBL_MIN : double ()Return the value of DBL_MIN macro defined in float.h C header.
DBL_MAX
sub DBL_MAX : double ()Return the value of DBL_MAX macro defined in float.h C header.
crand
sub crand : int ();Get random number(0 <= rundom_number <= SPVM::NumberUtil->RAND_MAX). This is same as rand function of C language.
The first seed is initialized by epoch time automatically. If you set a seed manually, you can use <srand> static method.
This method is not thread safe because internaly this method use rand function of C language.
rand
sub rand : double ();Get random number(0 <= random_number < 1). This is same as rand function of Perl language.
The first seed is initialized by epoch time automatically. If you set a seed manually, you can use <srand> static method.
This method is not thread safe because internaly this method use rand function of C language.
srand
sub srand : void ($seed : long);Sets random number seed for the crand or rand static method.