Class: GMP::RandState

Inherits:
Object
  • Object
show all
Defined in:
ext/gmprandstate.c

Instance Method Summary collapse

Instance Method Details

#mpc_urandom ⇒ Object

From the MPC Manual:

Generate a uniformly distributed random complex in the unit square [0,1] x [0,1].



15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
 
# File 'ext/gmprandstate.c', line 15

VALUE r_gmprandstate_mpc_urandom(int argc, VALUE *argv, VALUE self_val)
{
  MP_RANDSTATE *self;
  MP_COMPLEX *res;
  VALUE res_val;
  unsigned long prec = 0;

  if (argc > 1)
    rb_raise (rb_eArgError, "wrong # of arguments (%d for 0 or 1)", argc);

  mprandstate_get_struct (self_val, self);

  if (argc == 1) {
    if (FIXNUM_P (argv[0])) {
      if (FIX2INT (argv[0]) >= 2)
        prec = FIX2INT (argv[0]);
      else
        rb_raise (rb_eRangeError, "prec must be at least 2");
    } else {
      rb_raise (rb_eTypeError, "prec must be a Fixnum");
    }
  }

  mpc_make_struct (res_val, res);
  if (prec == 0) { mpc_init2 (res, mpfr_get_default_prec()); }
  else           { mpc_init2 (res, prec); }

  mpc_urandom (res, self);

  return res_val;
}