C++ (Cpp) ary_subseq示例

示例#1

文件： array.c 项目： AE9RB/mruby-complex

static mrb_value
mrb_ary_aget(mrb_state *mrb, mrb_value self)
{
  struct RArray *a = mrb_ary_ptr(self);
  mrb_int i, len;
  mrb_value index;

  if (mrb_get_args(mrb, "o|i", &index, &len) == 1) {
    switch (mrb_type(index)) {
      /* a[n..m] */
    case MRB_TT_RANGE:
      if (mrb_range_beg_len(mrb, index, &i, &len, a->len)) {
        return ary_subseq(mrb, a, i, len);
      }
      else {
        return mrb_nil_value();
      }
    case MRB_TT_FIXNUM:
      return mrb_ary_ref(mrb, self, mrb_fixnum(index));
    default:
      return mrb_ary_ref(mrb, self, aget_index(mrb, index));
    }
  }

  i = aget_index(mrb, index);
  if (i < 0) i += a->len;
  if (i < 0 || a->len < i) return mrb_nil_value();
  if (len < 0) return mrb_nil_value();
  if (a->len == i) return mrb_ary_new(mrb);
  if (len > a->len - i) len = a->len - i;

  return ary_subseq(mrb, a, i, len);
}

示例#2

文件： pairmatcher.c 项目： sonsongithub/sonson

static VALUE
pair_after_open_tokens(VALUE pair)
{
  int before_len, after_len;
  VALUE around_open = pair_get_around_open_tokens(pair);
  before_len = pair_get_before_open_len(pair);
  after_len = pair_get_after_open_len(pair);
  return ary_subseq(around_open, before_len+1, after_len);
  return ary_subseq(around_open, 0, before_len);
}

示例#3

文件： pairmatcher.c 项目： sonsongithub/sonson

static VALUE
pair_after_close_tokens(VALUE pair)
{
  int before_len, after_len;
  VALUE around_close = pair_get_around_close_tokens(pair);
  if (around_close == Qnil) return Qnil;
  before_len = pair_get_before_close_len(pair);
  after_len = pair_get_after_close_len(pair);
  return ary_subseq(around_close, before_len+1, after_len);
  return ary_subseq(around_close, 0, before_len);
}

示例#4

文件： array.c 项目： galois17/mruby

mrb_value
mrb_ary_last(mrb_state *mrb, mrb_value self)
{
  struct RArray *a = mrb_ary_ptr(self);
  int size;
  mrb_value *vals;
  int len;

  mrb_get_args(mrb, "*", &vals, &len);
  if (len > 1) {
    mrb_raise(mrb, E_ARGUMENT_ERROR, "wrong number of arguments");
  }

  if (len == 0) return (a->len > 0)? a->ptr[a->len - 1]: mrb_nil_value();

  /* len == 1 */
  size = mrb_fixnum(*vals);
  if (size < 0) {
    mrb_raise(mrb, E_ARGUMENT_ERROR, "negative array size");
  }
  if (size > a->len) size = a->len;
  if ((a->flags & MRB_ARY_SHARED) || size > ARY_DEFAULT_LEN) {
    return ary_subseq(mrb, a, a->len - size, size);
  }
  return mrb_ary_new_from_values(mrb, size, a->ptr + a->len - size);
}

示例#5

文件： array.c 项目： galois17/mruby

mrb_value
mrb_ary_aget(mrb_state *mrb, mrb_value self)
{
  struct RArray *a = mrb_ary_ptr(self);
  mrb_int index, len;
  mrb_value *argv;
  int size;

  mrb_get_args(mrb, "i*", &index, &argv, &size);
  switch(size) {
  case 0:
    return mrb_ary_ref(mrb, self, index);

  case 1:
    if (mrb_type(argv[0]) != MRB_TT_FIXNUM) {
      mrb_raise(mrb, E_TYPE_ERROR, "expected Fixnum");
    }
    if (index < 0) index += a->len;
    if (index < 0 || a->len < (int)index) return mrb_nil_value();
    len = mrb_fixnum(argv[0]);
    if (len < 0) return mrb_nil_value();
    if (a->len == (int)index) return mrb_ary_new(mrb);
    if ((int)len > a->len - index) len = a->len - index;
    return ary_subseq(mrb, a, index, len);

  default:
    mrb_raise(mrb, E_ARGUMENT_ERROR, "wrong number of arguments");
  }

  return mrb_nil_value(); /* dummy to avoid warning : not reach here */
}

示例#6

文件： array.c 项目： katsuyuki-nakamura/mruby

mrb_value
mrb_ary_first(mrb_state *mrb, mrb_value self)
{
  struct RArray *a = mrb_ary_ptr(self);
  int size;

  if (mrb_get_args(mrb, "|i", &size) == 0) {
    return (a->len > 0)? a->ptr[0]: mrb_nil_value();
  }

  if (size > a->len) size = a->len;
  if (a->flags & MRB_ARY_SHARED) {
    return ary_subseq(mrb, a, 0, size);
  }
  return mrb_ary_new_from_values(mrb, size, a->ptr);
}

示例#7

文件： array.c 项目： AE9RB/mruby-complex

static mrb_value
mrb_ary_last(mrb_state *mrb, mrb_value self)
{
  struct RArray *a = mrb_ary_ptr(self);
  mrb_int size;

  if (mrb_get_args(mrb, "|i", &size) == 0)
    return (a->len > 0)? a->ptr[a->len - 1]: mrb_nil_value();

  if (size < 0) {
    mrb_raise(mrb, E_ARGUMENT_ERROR, "negative array size");
  }
  if (size > a->len) size = a->len;
  if (ARY_SHARED_P(a) || size > ARY_DEFAULT_LEN) {
    return ary_subseq(mrb, a, a->len - size, size);
  }
  return mrb_ary_new_from_values(mrb, size, a->ptr + a->len - size);
}

示例#8

文件： array.c 项目： TJ-Hidetaka-Takano/mruby

static mrb_value
mrb_ary_first(mrb_state *mrb, mrb_value self)
{
  struct RArray *a = mrb_ary_ptr(self);
  mrb_int size, alen = ARY_LEN(a);

  if (mrb_get_args(mrb, "|i", &size) == 0) {
    return (alen > 0)? ARY_PTR(a)[0]: mrb_nil_value();
  }
  if (size < 0) {
    mrb_raise(mrb, E_ARGUMENT_ERROR, "negative array size");
  }

  if (size > alen) size = alen;
  if (ARY_SHARED_P(a)) {
    return ary_subseq(mrb, a, 0, size);
  }
  return mrb_ary_new_from_values(mrb, size, ARY_PTR(a));
}

示例#9

文件： array.c 项目： iij/mruby

static mrb_value
mrb_ary_last(mrb_state *mrb, mrb_value self)
{
  struct RArray *a = mrb_ary_ptr(self);
  mrb_int n, size, alen;

  n = mrb_get_args(mrb, "|i", &size);
  alen = ARY_LEN(a);
  if (n == 0) {
    return (alen > 0) ? ARY_PTR(a)[alen - 1]: mrb_nil_value();
  }

  if (size < 0) {
    mrb_raise(mrb, E_ARGUMENT_ERROR, "negative array size");
  }
  if (size > alen) size = alen;
  if (ARY_SHARED_P(a) || size > ARY_DEFAULT_LEN) {
    return ary_subseq(mrb, a, alen - size, size);
  }
  return mrb_ary_new_from_values(mrb, size, ARY_PTR(a) + alen - size);
}