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0.0243 2017-08-12
  - add SPVM::new_object_array_len function
  - add SPVM::Array::Object::set function
  - add SPVM::Array::Object::get function
0.0242 2017-08-11
  - array malloc length + 1. and last value is 0. This is for C level string API.
  - add debug mode. 
    use SPVM::Debug;
0.0241 2017-08-08
  - fix void subroutine bug that if return value is not exists, runtime error occur.
0.0240 2017-08-07
  - fix number literal bug that hex number e and E is floating point specifier
  - add byte and short number literal syntax
    123b
    123s
  - hex number only allow A, B, C, D, E, F because f is used to specify the number is floating point
    and b is used to specify the number is byte
  - fix array float store and load bug
  - support underline in number literal
    123_123
    0xFF_FF
0.0239 2017-08-05
  - cleanup enum internal logic
  - fix clang compiler error
  - fix all warnings 
0.0238 2017-08-04
  - Support nested switch statement
0.0237 2017-08-03
  - improve SPVM call_sub performance
0.0236 2017-08-01
  - add __END__
  - SPVM exception can be cached from Perl's eval { ... }
  - fix one character string bug.
0.0235 2017-07-31
  - fix default return value
  - imporve exception message
0.0234 2017-07-29
  - rename malloc to new. you can also define new function for object initialization.
    my $obj = new Foo;
    my $obj = Foo::new(3);
    package Foo {
      sub new($var1 : int) {
        
        # ...
        
        return new Foo;
      }
    }
  - object's fields are initialized by zero.
    
0.0233 2017-07-28
  - support package template.
  - support over 4G memory allocation
0.0232 2017-07-26
  - add len keyword to get array length
    reason is that
    foo(@$nums) looks like passing array itself, not array length.
    you can use len keyword for readability.
    foo(len $nums);
  - Fix bug that error occur when near small base_object_max_byte_size_use_memory_pool is malloced
0.0231 2017-07-25
  - Fix clang compile error
0.0230 2017-07-25
  - Fix POSIX function import bug
  - Package name must be start with upper case. Lowercase is reserved for core package.
  - Add SPVM/stdout.pm as Perl module
0.0229 2017-07-25
  - support array initialization
    my $nums = [1, 2, 3];
  - fix memory breaking bug when object is assigned from freelist
0.0228 2017-07-22
  - fix enum constant bug
  - support float enum
  - support double enum
0.0227 2017-07-21
  - fix tests bug
0.0226 2017-07-20
  - fix float convertion bugs
  - fix convert double to short bug
  - fix floating number which don't have point(for example, 346638529e+38) parsing bug.
  - rename std package to stdout
  - fix enum default type. Correct type is int.
  - fix enum { FOO = 1 } syntax. 
0.0225 2017-07-19
  - add SPVM::Array::Byte::get_elements method
  - add SPVM::Array::Short::get_elements method
  - add SPVM::Array::Int::get_elements method
  - add SPVM::Array::Long::get_elements method
  - add SPVM::Array::Float::get_elements method
  - add SPVM::Array::Double::get_elements method
0.0224 2017-07-19
  - fix memory leak bugs. fix reference count.
0.0223 2017-07-18
  - fix hash segmentation fault bug when many hash is created.
0.0222 2017-07-18
  - add SPVM::Object::set
  - add SPVM::Object::get
  - rename SPVM::byte_array to SPVM::new_byte_array
  - rename SPVM::short_array to SPVM::new_short_array
  - rename SPVM::int_array to SPVM::new_int_array
  - rename SPVM::long_array to SPVM::new_long_array
  - rename SPVM::float_array to SPVM::new_float_array
  - rename SPVM::double_array to SPVM::new_double_array
  - rename SPVM::string_raw to SPVM::new_string_raw
  - rename SPVM::string to SPVM::new_string
  - rename SPVM::object to SPVM::new_object
0.0221 2017-07-15
  - fix && not working bug
  - fix || not working bug
  - fix ! not working  bug
0.0220 2017-07-14
  - Support array return type in SPVM::call_sub
0.0219 2017-07-13
  - Support constant floating point E expression
    0.5E3
    0.5e3
    0.5E+3
    0.5e+3
    0.5E-3
    0.5e-3
  - add SPVM::string function
  - add SPVM::string_raw function
0.0218 2017-07-13
  - Fix float culcuration bugs
  - add SPVM::byte_array, SPVM::short_array, SPVM::long_array, SPVM::float_array, SPVM::double_array function
    to create SPVM array object.
0.0217 2017-07-12
  - Support SPVM::int_array([1, 2, 3]) function
    This values can be passed to SPVM function.
0.0216 2017-07-12
  - Fix constant sign is not initialized bug
0.0215 2017-07-11
  - Support while (my $var = 3) { ... }
  - Support long min constant -9223372036854775808
  - Fix array malloc bug
0.0214 2017-07-11
  - Fix for statement segmentaion fault bug
  - VAR = TERM return VAR. For example, allow the syntax "if (my $error = $@) { ... }
  - Fix if condition (byte, short, long, float) bugs.
0.0213 2017-07-10
  - Fix MANIFEST
0.0212 2017-07-10
  - Fix hex literal bug. 0xFFFFFFFFFFFFFFFFL is OK.
  - Fix bit shift bugs. <<, >>, >>> work well now.
0.0211 2017-07-08
  - Fix if statement condition not working bugs
  - try {  } catch () { } syntax is replaced with eval { }; if ($@) { ... } syntax.
0.0210 2017-07-08
  - Fix reference count bugs
0.0209 2017-07-07
  - len $nums is replaced with @$nums
  - $nums[0] is replaced with $nums->[0]
  - $obj{x} is replaced with $obj->{x}
0.0208 2017-07-06
  - add die logic when 32 bit Perl
  - add several SPVM internal functions
0.0207 2017-06-30
  - Fix amd64 segfault bug.
0.0206 2017-06-20
  - Argument and return value become normal SV which have IV or NV.
    # Example
    my $total = SPVM::MyModule2::foo(3, 5);
    print $total . "\n";

0.0205 2017-06-29
  - Only support 64 bit Perl.
    In 32 bit Perl, 64 bit integer is not supported. This means that Perl can not express 64 bit integers on source code.
0.0204 2017-06-28
  - add env interface. This is similar as JAVA JNI
0.0203 2017-06-26
  - build SPVM using same CCFLAG as Perl itself
0.0202 2017-06-25
  - use same CCFLAG in Makefile.PL
0.0201 2017-06-20
  - fix memset 0 bug
0.02 2017-06-20
  - improve XS type convertion logic
0.01 2017-06-17(DEVELOPMENT RELEASE
	- Fisrt development release