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ruby--ruby/ext/-test-/bignum/pack.c
akr 0c9a719d77 * internal.h (INTEGER_PACK_NEGATIVE): Defined.
(rb_integer_unpack): sign argument removed.

* bignum.c (rb_integer_unpack): sign argument removed.
  Non-negative integers generated by default.
  INTEGER_PACK_NEGATIVE flag is used to generate non-positive integers.

* pack.c (pack_unpack): Follow the above change.

* random.c (int_pair_to_real_inclusive): Ditto.
  (make_seed_value): Ditto.
  (mt_state): Ditto.
  (limited_big_rand): Ditto.

* marshal.c (r_object0): Ditto.



git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@41239 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2013-06-11 21:39:55 +00:00

82 lines
3.1 KiB
C

#include "ruby.h"
#include "internal.h"
static VALUE
rb_integer_pack_raw_m(VALUE val, VALUE buf, VALUE numwords_arg, VALUE wordsize_arg, VALUE nails, VALUE flags)
{
int sign;
size_t numwords = 0;
size_t wordsize = NUM2SIZET(wordsize_arg);
StringValue(buf);
rb_str_modify(buf);
sign = rb_integer_pack(val,
RSTRING_PTR(buf), NUM2SIZET(numwords_arg),
NUM2SIZET(wordsize_arg), NUM2SIZET(nails), NUM2INT(flags));
return rb_ary_new_from_args(2, INT2NUM(sign), rb_str_new(RSTRING_PTR(buf), wordsize * numwords));
}
static VALUE
rb_integer_pack_m(VALUE val, VALUE numwords_arg, VALUE wordsize_arg, VALUE nails, VALUE flags)
{
int sign;
size_t numwords = NUM2SIZET(numwords_arg);
size_t wordsize = NUM2SIZET(wordsize_arg);
VALUE buf;
if (numwords != 0 && wordsize != 0 && LONG_MAX / wordsize < numwords)
rb_raise(rb_eArgError, "too big numwords * wordsize");
buf = rb_str_new(NULL, numwords * wordsize);
sign = rb_integer_pack(val,
RSTRING_PTR(buf), numwords,
wordsize, NUM2SIZET(nails), NUM2INT(flags));
return rb_assoc_new(INT2NUM(sign), buf);
}
static VALUE
rb_integer_pack_2comp_m(VALUE val, VALUE numwords_arg, VALUE wordsize_arg, VALUE nails, VALUE flags)
{
int sign;
size_t numwords = NUM2SIZET(numwords_arg);
size_t wordsize = NUM2SIZET(wordsize_arg);
VALUE buf;
if (numwords != 0 && wordsize != 0 && LONG_MAX / wordsize < numwords)
rb_raise(rb_eArgError, "too big numwords * wordsize");
buf = rb_str_new(NULL, numwords * wordsize);
sign = rb_integer_pack_2comp(val,
RSTRING_PTR(buf), numwords,
wordsize, NUM2SIZET(nails), NUM2INT(flags));
return rb_assoc_new(INT2NUM(sign), buf);
}
static VALUE
rb_integer_unpack_m(VALUE klass, VALUE buf, VALUE numwords, VALUE wordsize, VALUE nails, VALUE flags)
{
StringValue(buf);
return rb_integer_unpack(RSTRING_PTR(buf),
NUM2SIZET(numwords), NUM2SIZET(wordsize),
NUM2SIZET(nails), NUM2INT(flags));
}
void
Init_pack(VALUE klass)
{
rb_define_method(rb_cInteger, "test_pack_raw", rb_integer_pack_raw_m, 5);
rb_define_method(rb_cInteger, "test_pack", rb_integer_pack_m, 4);
rb_define_method(rb_cInteger, "test_pack_2comp", rb_integer_pack_2comp_m, 4);
rb_define_singleton_method(rb_cInteger, "test_unpack", rb_integer_unpack_m, 5);
rb_define_const(rb_cInteger, "INTEGER_PACK_MSWORD_FIRST", INT2NUM(INTEGER_PACK_MSWORD_FIRST));
rb_define_const(rb_cInteger, "INTEGER_PACK_LSWORD_FIRST", INT2NUM(INTEGER_PACK_LSWORD_FIRST));
rb_define_const(rb_cInteger, "INTEGER_PACK_MSBYTE_FIRST", INT2NUM(INTEGER_PACK_MSBYTE_FIRST));
rb_define_const(rb_cInteger, "INTEGER_PACK_LSBYTE_FIRST", INT2NUM(INTEGER_PACK_LSBYTE_FIRST));
rb_define_const(rb_cInteger, "INTEGER_PACK_NATIVE_BYTE_ORDER", INT2NUM(INTEGER_PACK_NATIVE_BYTE_ORDER));
rb_define_const(rb_cInteger, "INTEGER_PACK_LITTLE_ENDIAN", INT2NUM(INTEGER_PACK_LITTLE_ENDIAN));
rb_define_const(rb_cInteger, "INTEGER_PACK_BIG_ENDIAN", INT2NUM(INTEGER_PACK_BIG_ENDIAN));
rb_define_const(rb_cInteger, "INTEGER_PACK_FORCE_BIGNUM", INT2NUM(INTEGER_PACK_FORCE_BIGNUM));
rb_define_const(rb_cInteger, "INTEGER_PACK_NEGATIVE", INT2NUM(INTEGER_PACK_NEGATIVE));
}