Class: MPFR

Inherits:
Numeric
  • Object
show all
Includes:
Comparable
Defined in:
lib/mpfr/rspec.rb,
lib/mpfr/matrix.rb,
lib/mpfr/version.rb,
ext/mpfr/ruby_mpfr.c,
ext/mpfr_matrix/mpfr/ruby_mpfr_matrix.c

Defined Under Namespace

Modules: Math, Vector Classes: ColumnVector, Matrix, RowVector, SquareMatrix

Constant Summary collapse

VERSION = 
'0.0.17'
MPFR_VERSION =

Integer that is macro MPFR_VERSION.

INT2NUM(MPFR_VERSION)
MPFR_VERSION_MAJOR =

Integer that is macro MPFR_VERSION_MAJOR.

INT2NUM(MPFR_VERSION_MAJOR)
MPFR_VERSION_MINOR =

Integer that is macro MPFR_VERSION_MINOR.

INT2NUM(MPFR_VERSION_MINOR)
MPFR_VERSION_PATCHLEVEL =

Integer that is macro MPFR_VERSION_PATCHLEVEL.

INT2NUM(MPFR_VERSION_PATCHLEVEL)
MPFR_VERSION_STRING =

String that is macro MPFR_VERSION_STRING.

rb_str_new2(MPFR_VERSION_STRING)
PREC_MAX =

Integer that is macro MPFR_PREC_MAX.

INT2NUM(MPFR_PREC_MAX)
PREC_MIN =

Integer that is macro MPFR_PREC_MIN.

INT2NUM(MPFR_PREC_MIN)
EMAX_DEFAULT =

Integer that is macro MPFR_EMAX_DEFAULT.

INT2NUM(MPFR_EMAX_DEFAULT)
EMIN_DEFAULT =

Integer whichi is MPFR_EMIN_DEFAULT.

INT2NUM(MPFR_EMIN_DEFAULT)
RNDN =

Integer that is macro MPFR_RNDN.

ID2SYM(id_rndn)
RNDZ =

Integer that is macro MPFR_RNDZ.

ID2SYM(id_rndz)
RNDU =

Integer that is macro MPFR_RNDU.

ID2SYM(id_rndu)
RNDD =

Integer that is macro MPFR_RNDD.

ID2SYM(id_rndd)
RNDA =

Integer that is macro MPFR_RNDD.

ID2SYM(id_rnda)
@@error = 
MPFR('1e-12')

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.buildopt_decimal? ⇒ Boolean

Return true if MPFR was compiled with decimal float support. Otherwise, nil.

Returns:

  • (Boolean) 


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# File 'ext/mpfr/ruby_mpfr.c', line 2912

static VALUE r_mpfr_buildopt_decimal_p(VALUE self)
{
  return mpfr_buildopt_decimal_p() == 0 ? Qnil : Qtrue;
}

.buildopt_tls? ⇒ Boolean

Return true if MPFR was compiled as thread safe using compiler-level Thread Local Storage. Otherwise, nil.

Returns:

  • (Boolean) 


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# File 'ext/mpfr/ruby_mpfr.c', line 2906

static VALUE r_mpfr_buildopt_tls_p(VALUE self)
{
  return mpfr_buildopt_tls_p() == 0 ? Qnil : Qtrue;
}

.clear_erangeflag ⇒ Object

Execute mpfr_clear_erangeflag() and return nil.



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# File 'ext/mpfr/ruby_mpfr.c', line 244

static VALUE r_mpfr_clear_erangeflag(VALUE self)
{
  mpfr_clear_erangeflag();
  return Qnil;
}

.clear_flags ⇒ Object

Execute mpfr_clear_flags() and return nil.



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# File 'ext/mpfr/ruby_mpfr.c', line 286

static VALUE r_mpfr_clear_flags(VALUE self)
{
  mpfr_clear_flags();
  return Qnil;
}

.clear_inexflag ⇒ Object

Execute mpfr_clear_inexflag() and return nil.



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# File 'ext/mpfr/ruby_mpfr.c', line 237

static VALUE r_mpfr_clear_inexflag(VALUE self)
{
  mpfr_clear_inexflag();
  return Qnil;
}

.clear_nanflag ⇒ Object

Execute mpfr_clear_nanflag() and return nil.



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# File 'ext/mpfr/ruby_mpfr.c', line 230

static VALUE r_mpfr_clear_nanflag(VALUE self)
{
  mpfr_clear_nanflag();
  return Qnil;
}

.clear_overflow ⇒ Object

Execute mpfr_clear_overflow() and return nil.



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# File 'ext/mpfr/ruby_mpfr.c', line 223

static VALUE r_mpfr_clear_overflow(VALUE self)
{
  mpfr_clear_overflow();
  return Qnil;
}

.clear_underflow ⇒ Object

Execute mpfr_clear_underflow() and return nil.



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# File 'ext/mpfr/ruby_mpfr.c', line 216

static VALUE r_mpfr_clear_underflow(VALUE self)
{
  mpfr_clear_underflow();
  return Qnil;
}

.ColumnVector(arg) ⇒ Object

Return new MPFR::ColumnVector instance. The same arguments as MPFR::ColumnVector.new is acceptable.



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# File 'ext/mpfr_matrix/mpfr/ruby_mpfr_matrix.c', line 270

static VALUE r_mpfr_col_vector_global_new(VALUE self, VALUE arg)
{
  MPFRMatrix *ptr;
  VALUE val;
  r_mpfr_make_col_vector_struct(val, ptr);
  r_mpfr_col_vector_set_initial_value(ptr, arg);
  return val;
}

.erangeflag_p ⇒ Object

If erange flag is set, this method returns true. Otherwise nil.



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# File 'ext/mpfr/ruby_mpfr.c', line 317

static VALUE r_mpfr_erangeflag_p(VALUE self)
{
  return (mpfr_erangeflag_p() != 0 ? Qtrue : Qfalse);
}

.get_default_prec ⇒ Object

Return the default MPFR precision in bits.



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# File 'ext/mpfr/ruby_mpfr.c', line 119

static VALUE r_mpfr_get_default_prec(VALUE self)
{
  return INT2NUM((int)mpfr_get_default_prec());
}

.get_default_rounding_mode ⇒ Object

Get the default rounding mode.



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# File 'ext/mpfr/ruby_mpfr.c', line 143

static VALUE r_mpfr_get_default_rounding_mode(VALUE self)
{
  switch (mpfr_get_default_rounding_mode()) {
  case MPFR_RNDN:
    return ID2SYM(id_rndn);
  case MPFR_RNDZ:
    return ID2SYM(id_rndz);
  case MPFR_RNDU:
    return ID2SYM(id_rndu);
  case MPFR_RNDD:
    return ID2SYM(id_rndd);
  case MPFR_RNDA:
    return ID2SYM(id_rnda);
  case MPFR_RNDF:
  case MPFR_RNDNA:
    rb_raise(rb_eStandardError, "Unsupported rounding mode.");
  }
  rb_raise(rb_eStandardError, "Invalid rounding mode.");
}

.get_emax ⇒ Object

Return integer which is mpfr_get_emax().



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# File 'ext/mpfr/ruby_mpfr.c', line 174

static VALUE r_mpfr_get_emax(VALUE self)
{
  return INT2NUM(mpfr_get_emax());
}

.get_emax_max ⇒ Object

Return integer which is mpfr_get_emax_max().



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# File 'ext/mpfr/ruby_mpfr.c', line 210

static VALUE r_mpfr_get_emax_max(VALUE self)
{
  return INT2NUM(mpfr_get_emax_max());
}

.get_emax_min ⇒ Object

Return integer which is mpfr_get_emax_min().



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# File 'ext/mpfr/ruby_mpfr.c', line 204

static VALUE r_mpfr_get_emax_min(VALUE self)
{
  return INT2NUM(mpfr_get_emax_min());
}

.get_emin ⇒ Object

Return integer which is mpfr_get_emin().



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# File 'ext/mpfr/ruby_mpfr.c', line 168

static VALUE r_mpfr_get_emin(VALUE self)
{
  return INT2NUM(mpfr_get_emin());
}

.get_emin_max ⇒ Object

Return integer which is mpfr_get_emin_max().



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# File 'ext/mpfr/ruby_mpfr.c', line 198

static VALUE r_mpfr_get_emin_max(VALUE self)
{
  return INT2NUM(mpfr_get_emin_max());
}

.get_emin_min ⇒ Object

Return integer which is mpfr_get_emin_min().



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# File 'ext/mpfr/ruby_mpfr.c', line 192

static VALUE r_mpfr_get_emin_min(VALUE self)
{
  return INT2NUM(mpfr_get_emin_min());
}

.get_error_of_test ⇒ Object 



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# File 'lib/mpfr/rspec.rb', line 8

def self.get_error_of_test
  @error
end

.get_patches ⇒ Object

String which mpfr_get_patches() returns.



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# File 'ext/mpfr/ruby_mpfr.c', line 2900

static VALUE r_mpfr_get_patches(VALUE self)
{
  return rb_str_new2(mpfr_get_patches());
}

.get_version ⇒ Object

Version string which mpfr_get_version() returns.



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# File 'ext/mpfr/ruby_mpfr.c', line 2894

static VALUE r_mpfr_get_version(VALUE self)
{
  return rb_str_new2(mpfr_get_version());
}

.inexflag_p ⇒ Object

If inexact flag is set, this method returns true. Otherwise nil.



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# File 'ext/mpfr/ruby_mpfr.c', line 311

static VALUE r_mpfr_inexflag_p(VALUE self)
{
  return (mpfr_inexflag_p() != 0 ? Qtrue : Qfalse);
}

.Matrix(*args) ⇒ Object

Return new MPFR::Matrix instance. The same arguments as MPFR::Matrix.new is acceptable.



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# File 'ext/mpfr_matrix/mpfr/ruby_mpfr_matrix.c', line 99

static VALUE r_mpfr_matrix_global_new(int argc, VALUE *argv, VALUE self)
{
  MPFRMatrix *ptr;
  VALUE val;
  r_mpfr_make_matrix_struct(val, ptr);
  r_mpfr_matrix_set_initial_value(ptr, argc, argv);
  return val;
}

.minf(*args) ⇒ Object

Return minus infinity. This method takes one optional argument meaning precision.



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# File 'ext/mpfr/ruby_mpfr.c', line 608

static VALUE r_mpfr_minf(int argc, VALUE *argv, VALUE self)
{
  mp_prec_t prec = r_mpfr_prec_from_optional_argument(0, 1, argc, argv);
  MPFR *ptr_return;
  VALUE val_ret;
  r_mpfr_make_struct_init2(val_ret, ptr_return, prec);
  mpfr_set_inf(ptr_return, -1);
  return val_ret;
}

.nan(*args) ⇒ Object

Return NaN. This method takes one optional argument meaning precision.



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# File 'ext/mpfr/ruby_mpfr.c', line 571

static VALUE r_mpfr_nan(int argc, VALUE *argv, VALUE self)
{
  mp_prec_t prec = r_mpfr_prec_from_optional_argument(0, 1, argc, argv);
  MPFR *ptr_return;
  VALUE val_ret;
  r_mpfr_make_struct_init2(val_ret, ptr_return, prec);
  mpfr_set_nan(ptr_return);
  return val_ret;
}

.nanflag_p ⇒ Object

If invalid flag is set, this method returns true. Otherwise nil.



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# File 'ext/mpfr/ruby_mpfr.c', line 305

static VALUE r_mpfr_nanflag_p(VALUE self)
{
  return (mpfr_nanflag_p() != 0 ? Qtrue : Qfalse);
}

.overflow_p ⇒ Object

If owerflow flag is set, this method returns true. Otherwise nil.



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# File 'ext/mpfr/ruby_mpfr.c', line 299

static VALUE r_mpfr_overflow_p(VALUE self)
{
  return (mpfr_overflow_p() != 0 ? Qtrue : Qfalse);
}

.pinf(*args) ⇒ Object

Return plus infinity. This method takes one optional argument meaning precision.



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# File 'ext/mpfr/ruby_mpfr.c', line 597

static VALUE r_mpfr_pinf(int argc, VALUE *argv, VALUE self)
{
  mp_prec_t prec = r_mpfr_prec_from_optional_argument(0, 1, argc, argv);
  MPFR *ptr_return;
  VALUE val_ret;
  r_mpfr_make_struct_init2(val_ret, ptr_return, prec);
  mpfr_set_inf(ptr_return, 1);
  return val_ret;
}

.RowVector(arg) ⇒ Object

Return new MPFR::RowVector instance. The same arguments as MPFR::RowVector.new is acceptable.



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# File 'ext/mpfr_matrix/mpfr/ruby_mpfr_matrix.c', line 321

static VALUE r_mpfr_row_vector_global_new(int argc, VALUE arg)
{
  MPFRMatrix *ptr;
  VALUE val;
  r_mpfr_make_row_vector_struct(val, ptr);
  r_mpfr_row_vector_set_initial_value(ptr, arg);
  return val;
}

.set_default_prec(prec) ⇒ Object

Set the default MPFR precision in bits.



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# File 'ext/mpfr/ruby_mpfr.c', line 108

static VALUE r_mpfr_set_default_prec(VALUE self, VALUE prec)
{
  int set_prec = NUM2INT(prec);
  if(set_prec <= 0){
    rb_raise(rb_eRangeError, "Argument must be positive.");
  }
  mpfr_set_default_prec(set_prec);
  return INT2FIX(mpfr_get_default_prec());
}

.set_default_rounding_mode(rnd) ⇒ Object

Set the default rounding mode. The default rounding mode is MPFR::RNDN.



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# File 'ext/mpfr/ruby_mpfr.c', line 125

static VALUE r_mpfr_set_default_rounding_mode(VALUE self, VALUE rnd)
{
  ID rnd_id = SYM2ID(rnd);
  if (rnd_id == id_rndn) {
    mpfr_set_default_rounding_mode(MPFR_RNDN);
  } else if (rnd_id == id_rndz) {
    mpfr_set_default_rounding_mode(MPFR_RNDZ);
  } else if (rnd_id == id_rndu) {
    mpfr_set_default_rounding_mode(MPFR_RNDU);
  } else if (rnd_id == id_rndd) {
    mpfr_set_default_rounding_mode(MPFR_RNDD);
  } else if (rnd_id == id_rnda) {
    mpfr_set_default_rounding_mode(MPFR_RNDA);
  }
  return rnd;
}

.set_emax(exp) ⇒ Object

Return integer which is mpfr_set_emax( p1 ).



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# File 'ext/mpfr/ruby_mpfr.c', line 186

static VALUE r_mpfr_set_emax(VALUE self, VALUE exp)
{
  return INT2NUM(mpfr_set_emax(NUM2INT(exp)));
}

.set_emin(exp) ⇒ Object

Return integer which is mpfr_set_emin( p1 ).



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# File 'ext/mpfr/ruby_mpfr.c', line 180

static VALUE r_mpfr_set_emin(VALUE self, VALUE exp)
{
  return INT2NUM(mpfr_set_emin(NUM2INT(exp)));
}

.set_erangeflag ⇒ Object

Execute mpfr_set_erangeflag() and return nil.



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# File 'ext/mpfr/ruby_mpfr.c', line 279

static VALUE r_mpfr_set_erangeflag(VALUE self)
{
  mpfr_set_erangeflag();
  return Qnil;
}

.set_error_of_test(err) ⇒ Object 



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# File 'lib/mpfr/rspec.rb', line 4

def self.set_error_of_test(err)
  @error = err
end

.set_inexflag ⇒ Object

Execute mpfr_set_inexflag() and return nil.



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# File 'ext/mpfr/ruby_mpfr.c', line 272

static VALUE r_mpfr_set_inexflag(VALUE self)
{
  mpfr_set_inexflag();
  return Qnil;
}

.set_nanflag ⇒ Object

Execute mpfr_set_nanflag() and return nil.



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# File 'ext/mpfr/ruby_mpfr.c', line 265

static VALUE r_mpfr_set_nanflag(VALUE self)
{
  mpfr_set_nanflag();
  return Qnil;
}

.set_overflow ⇒ Object

Execute mpfr_set_overflow() and return nil.



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# File 'ext/mpfr/ruby_mpfr.c', line 258

static VALUE r_mpfr_set_overflow(VALUE self)
{
  mpfr_set_overflow();
  return Qnil;
}

.set_underflow ⇒ Object

Execute mpfr_set_underflow() and return nil.



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# File 'ext/mpfr/ruby_mpfr.c', line 251

static VALUE r_mpfr_set_underflow(VALUE self)
{
  mpfr_set_underflow();
  return Qnil;
}

.SquareMatrix(arg) ⇒ Object

Return new MPFR::SquareMatrix instance. The same arguments as MPFR::SquareMatrix.new is acceptable.



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# File 'ext/mpfr_matrix/mpfr/ruby_mpfr_matrix.c', line 166

static VALUE r_mpfr_square_matrix_global_new(int argc, VALUE arg)
{
  MPFRMatrix *ptr;
  VALUE val;
  r_mpfr_make_square_matrix_struct(val, ptr);
  r_mpfr_square_matrix_set_initial_value(ptr, arg);
  return val;
}

.underflow_p ⇒ Object

If underflow flag is set, this method returns true. Otherwise nil.



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# File 'ext/mpfr/ruby_mpfr.c', line 293

static VALUE r_mpfr_underflow_p(VALUE self)
{
  return (mpfr_underflow_p() != 0 ? Qtrue : Qfalse);
}

.zero(*args) ⇒ Object

Return zero. This method takes one optional argument meaning precision.



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# File 'ext/mpfr/ruby_mpfr.c', line 582

static VALUE r_mpfr_zero(int argc, VALUE *argv, VALUE self)
{
  mp_prec_t prec = r_mpfr_prec_from_optional_argument(0, 2, argc, argv);
  MPFR *ptr_return;
  VALUE val_ret;
  int sign = 1;
  if (argc >= 1) {
    sign = NUM2INT(argv[0]);
  }
  r_mpfr_make_struct_init2(val_ret, ptr_return, prec);
  mpfr_set_zero(ptr_return, sign);
  return val_ret;
}

Instance Method Details

#%(other) ⇒ Object Also known as: modulo

mpfr_remainder(ret, self, p1, mpfr_getdefault_rounding_mode())



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# File 'ext/mpfr/ruby_mpfr.c', line 1733

static VALUE r_mpfr_remainder2(VALUE self, VALUE other)
{
  MPFR *ptr_self, *ptr_other, *ptr_return;
  volatile VALUE tmp_other;
  VALUE val_ret;
  r_mpfr_get_struct(ptr_self, self);
  r_mpfr_make_struct_init(val_ret, ptr_return);
  tmp_other = r_mpfr_new_fr_obj(other);
  r_mpfr_get_struct(ptr_other, tmp_other);
  mpfr_remainder(ptr_return, ptr_self, ptr_other, mpfr_get_default_rounding_mode());
  return val_ret;
}

#*(other) ⇒ Object

Return self * p1.



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# File 'ext/mpfr/ruby_mpfr.c', line 962

static VALUE r_mpfr_mul(VALUE self, VALUE other)
{
  MPFR *ptr_self, *ptr_other, *ptr_return;
  VALUE val_ret;
  r_mpfr_get_struct(ptr_self, self);
  r_mpfr_make_struct_init(val_ret, ptr_return);

  if(MPFR_P(other)){
    r_mpfr_get_struct(ptr_other, other);
    mpfr_mul(ptr_return, ptr_self, ptr_other, mpfr_get_default_rounding_mode());
  }else if(TYPE(other) == T_FIXNUM){
    mpfr_mul_si(ptr_return, ptr_self, FIX2LONG(other), mpfr_get_default_rounding_mode());
  }else if(TYPE(other) == T_FLOAT){
    mpfr_mul_d(ptr_return, ptr_self, NUM2DBL(other), mpfr_get_default_rounding_mode());
  }else if(TYPE(other) == T_BIGNUM){
    volatile VALUE tmp = rb_funcall(__mpfr_class__, new, 1, other);
    r_mpfr_get_struct(ptr_other, tmp);
    mpfr_mul(ptr_return, ptr_self, ptr_other, mpfr_get_default_rounding_mode());
  }else if(rb_respond_to(other, to_fr)){
    volatile VALUE tmp = rb_funcall(other, to_fr, 0);
    r_mpfr_get_struct(ptr_other, tmp);
    mpfr_mul(ptr_return, ptr_self, ptr_other, mpfr_get_default_rounding_mode());
  }else{
    rb_raise(rb_eArgError, "Argument must be MPFR, Fixnum, Float, or Bignum.");    
  }
  return val_ret;
}

#**(other) ⇒ Object

Return p1-th power of self.



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# File 'ext/mpfr/ruby_mpfr.c', line 1020

static VALUE r_mpfr_pow(VALUE self, VALUE other)
{
  MPFR *ptr_self, *ptr_other, *ptr_return;
  VALUE val_ret;
  r_mpfr_get_struct(ptr_self, self);
  r_mpfr_make_struct_init(val_ret, ptr_return);
  if(TYPE(other) == T_FIXNUM){
    mpfr_pow_si(ptr_return, ptr_self, FIX2LONG(other), mpfr_get_default_rounding_mode());
  }else{
    volatile VALUE tmp_other = r_mpfr_new_fr_obj(other);
    r_mpfr_get_struct(ptr_other, tmp_other);
    mpfr_pow(ptr_return, ptr_self, ptr_other, mpfr_get_default_rounding_mode());
  }
  return val_ret;
}

#+(other) ⇒ Object

Return self + p1.



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# File 'ext/mpfr/ruby_mpfr.c', line 904

static VALUE r_mpfr_add(VALUE self, VALUE other)
{
  MPFR *ptr_self, *ptr_other, *ptr_return;
  VALUE val_ret;
  r_mpfr_get_struct(ptr_self, self);
  r_mpfr_make_struct_init(val_ret, ptr_return);

  if(MPFR_P(other)){
    r_mpfr_get_struct(ptr_other, other);
    mpfr_add(ptr_return, ptr_self, ptr_other, mpfr_get_default_rounding_mode());
  }else if(TYPE(other) == T_FIXNUM){
    mpfr_add_si(ptr_return, ptr_self, FIX2LONG(other), mpfr_get_default_rounding_mode());
  }else if(TYPE(other) == T_FLOAT){
    mpfr_add_d(ptr_return, ptr_self, NUM2DBL(other), mpfr_get_default_rounding_mode());
  }else if(TYPE(other) == T_BIGNUM){
    volatile VALUE tmp = rb_funcall(__mpfr_class__, new, 1, other);
    r_mpfr_get_struct(ptr_other, tmp);
    mpfr_add(ptr_return, ptr_self, ptr_other, mpfr_get_default_rounding_mode());
  }else if(rb_respond_to(other, to_fr)){
    volatile VALUE tmp = rb_funcall(other, to_fr, 0);
    r_mpfr_get_struct(ptr_other, tmp);
    mpfr_add(ptr_return, ptr_self, ptr_other, mpfr_get_default_rounding_mode());
  }else{
    rb_raise(rb_eArgError, "Argument must be MPFR, Fixnum, Float, or Bignum.");    
  }
  return val_ret;
}

#-(other) ⇒ Object

Return self - p1.



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# File 'ext/mpfr/ruby_mpfr.c', line 933

static VALUE r_mpfr_sub(VALUE self, VALUE other)
{
  MPFR *ptr_self, *ptr_other, *ptr_return;
  VALUE val_ret;
  r_mpfr_get_struct(ptr_self, self);
  r_mpfr_make_struct_init(val_ret, ptr_return);

  if(MPFR_P(other)){
    r_mpfr_get_struct(ptr_other, other);
    mpfr_sub(ptr_return, ptr_self, ptr_other, mpfr_get_default_rounding_mode());
  }else if(TYPE(other) == T_FIXNUM){
    mpfr_sub_si(ptr_return, ptr_self, FIX2LONG(other), mpfr_get_default_rounding_mode());
  }else if(TYPE(other) == T_FLOAT){
    mpfr_sub_d(ptr_return, ptr_self, NUM2DBL(other), mpfr_get_default_rounding_mode());
  }else if(TYPE(other) == T_BIGNUM){
    volatile VALUE tmp = rb_funcall(__mpfr_class__, new, 1, other);
    r_mpfr_get_struct(ptr_other, tmp);
    mpfr_sub(ptr_return, ptr_self, ptr_other, mpfr_get_default_rounding_mode());
  }else if(rb_respond_to(other, to_fr)){
    volatile VALUE tmp = rb_funcall(other, to_fr, 0);
    r_mpfr_get_struct(ptr_other, tmp);
    mpfr_sub(ptr_return, ptr_self, ptr_other, mpfr_get_default_rounding_mode());
  }else{
    rb_raise(rb_eArgError, "Argument must be MPFR, Fixnum, Float, or Bignum.");    
  }
  return val_ret;
}

#/(other) ⇒ Object

Return self / p1.



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# File 'ext/mpfr/ruby_mpfr.c', line 991

static VALUE r_mpfr_div(VALUE self, VALUE other)
{
  MPFR *ptr_self, *ptr_other, *ptr_return;
  VALUE val_ret;
  r_mpfr_get_struct(ptr_self, self);
  r_mpfr_make_struct_init(val_ret, ptr_return);

  if(MPFR_P(other)){
    r_mpfr_get_struct(ptr_other, other);
    mpfr_div(ptr_return, ptr_self, ptr_other, mpfr_get_default_rounding_mode());
  }else if(TYPE(other) == T_FIXNUM){
    mpfr_div_si(ptr_return, ptr_self, FIX2LONG(other), mpfr_get_default_rounding_mode());
  }else if(TYPE(other) == T_FLOAT){
    mpfr_div_d(ptr_return, ptr_self, NUM2DBL(other), mpfr_get_default_rounding_mode());
  }else if(TYPE(other) == T_BIGNUM){
    volatile VALUE tmp = rb_funcall(__mpfr_class__, new, 1, other);
    r_mpfr_get_struct(ptr_other, tmp);
    mpfr_div(ptr_return, ptr_self, ptr_other, mpfr_get_default_rounding_mode());
  }else if(rb_respond_to(other, to_fr)){
    volatile VALUE tmp = rb_funcall(other, to_fr, 0);
    r_mpfr_get_struct(ptr_other, tmp);
    mpfr_div(ptr_return, ptr_self, ptr_other, mpfr_get_default_rounding_mode());
  }else{
    rb_raise(rb_eArgError, "Argument must be MPFR, Fixnum, Float, or Bignum.");    
  }
  return val_ret;
}

#abs(*args) ⇒ Object

Return absolute value of self.



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# File 'ext/mpfr/ruby_mpfr.c', line 1051

static VALUE r_mpfr_abs(int argc, VALUE *argv, VALUE self)
{
  mp_rnd_t rnd;
  mp_prec_t prec;
  MPFR *ptr_self, *ptr_return;
  VALUE val_ret;
  r_mpfr_get_rnd_prec_from_optional_arguments(&rnd, &prec, 0, 2, argc, argv);
  r_mpfr_get_struct(ptr_self, self);
  r_mpfr_make_struct_init2(val_ret, ptr_return, prec);
  mpfr_abs(ptr_return, ptr_self, rnd);
  return val_ret;
}

#can_round(err, rnd1, rnd2, prec) ⇒ Object

mpfr_can_round(self, err, rnd1, rnd2, prec)



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# File 'ext/mpfr/ruby_mpfr.c', line 1902

static VALUE r_mpfr_can_round(VALUE self, VALUE err, VALUE rnd1, VALUE rnd2, VALUE prec)
{
  MPFR *ptr_self;
  r_mpfr_get_struct(ptr_self, self);
  if (mpfr_can_round(ptr_self, NUM2INT(err), NUM2INT(rnd1), NUM2INT(rnd2), NUM2INT(prec))) {
    return Qtrue;
  }
  return Qnil;
}

#ceil ⇒ Object

Return Fixnum object which is the minimum integer over self.



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# File 'ext/mpfr/ruby_mpfr.c', line 814

static VALUE r_mpfr_ceil_to_i(VALUE self)
{
  MPFR *ptr_self;
  r_mpfr_get_struct(ptr_self, self);
  if (mpfr_fits_slong_p(ptr_self, GMP_RNDU)) {
    return LONG2NUM(mpfr_get_si(ptr_self, GMP_RNDU));
  } else if (mpfr_nan_p(ptr_self)) {
    rb_raise(__mpfr_domain_error__, "Can not convert NaN to an integer");
  } else {
    MPFR *tmp_int;
    char *tmp_str;
    VALUE bignum;
    r_mpfr_temp_alloc_init2(tmp_int, mpfr_get_prec(ptr_self));
    mpfr_ceil(tmp_int, ptr_self);
    if (!mpfr_asprintf(&tmp_str, "%Rf", tmp_int)) {
      rb_raise(rb_eFatal, "Can not allocate a string by mpfr_asprintf.");
    }
    bignum = rb_cstr_to_inum(tmp_str, 10, false);
    r_mpfr_temp_free(tmp_int);
    return bignum;
  }
}

#check_error(other, error = nil) ⇒ Object 



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# File 'lib/mpfr/rspec.rb', line 12

def check_error(other, error = nil)
  (self - other).abs < (error || @@error)
end

#check_range(*args) ⇒ Object

Execute mpfr_check_range( self, p1, rnd ) and return self.



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# File 'ext/mpfr/ruby_mpfr.c', line 323

static VALUE r_mpfr_check_range(int argc, VALUE *argv, VALUE self)
{
  mp_rnd_t rnd = r_mpfr_rnd_from_optional_argument(1, 2, argc, argv);
  MPFR *ptr_self;
  r_mpfr_get_struct(ptr_self, self);
  mpfr_check_range(ptr_self, NUM2INT(argv[0]), rnd);
  return self;
}

#cmp(other) ⇒ Object Also known as: <=>

Return negative integer if self < other, negative integer if self > other, or 0 if self == other.



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# File 'ext/mpfr/ruby_mpfr.c', line 1340

static VALUE r_mpfr_cmp(VALUE self, VALUE other)
{
  MPFR *ptr_self, *ptr_other;
  int val_ret;
  r_mpfr_get_struct(ptr_self, self);

  if(MPFR_P(other)){
    r_mpfr_get_struct(ptr_other, other);
    val_ret = mpfr_cmp(ptr_self, ptr_other);
  }else if(TYPE(other) == T_FIXNUM){
    val_ret = mpfr_cmp_si(ptr_self, FIX2LONG(other));
  }else if(TYPE(other) == T_FLOAT){
    val_ret = mpfr_cmp_d(ptr_self, NUM2DBL(other));
  }else if(TYPE(other) == T_BIGNUM){
    volatile VALUE tmp = rb_funcall(__mpfr_class__, new, 1, other);
    r_mpfr_get_struct(ptr_other, tmp);
    val_ret = mpfr_cmp(ptr_self, ptr_other);
  }else{
    rb_raise(rb_eArgError, "Argument must be MPFR, Fixnum, Float, or Bignum.");    
  }
  return INT2FIX(val_ret);
}

#cmp_si_2exp(other, exp) ⇒ Object

mpfr_cmp_si_2exp(self, p1, p2).



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# File 'ext/mpfr/ruby_mpfr.c', line 1380

static VALUE r_mpfr_cmp_si_2exp(VALUE self, VALUE other, VALUE exp)
{
  MPFR *ptr_self;
  r_mpfr_get_struct(ptr_self, self);
  return INT2FIX(mpfr_cmp_si_2exp(ptr_self, NUM2INT(other), NUM2INT(exp)));
}

#cmp_ui_2exp(other, exp) ⇒ Object

mpfr_cmp_ui_2exp(self, p1, p2).



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# File 'ext/mpfr/ruby_mpfr.c', line 1364

static VALUE r_mpfr_cmp_ui_2exp(VALUE self, VALUE other, VALUE exp)
{
  MPFR *ptr_self;
  VALUE val_ret;
  int i;
  r_mpfr_get_struct(ptr_self, self);
  i = NUM2INT(other);
  if(i > 0){
    val_ret = INT2FIX(mpfr_cmp_ui_2exp(ptr_self, i, (mp_exp_t)NUM2INT(exp)));
  }else{
    rb_raise(rb_eArgError, "First argument must be positive Fixnum.");
  }
  return val_ret;
}

#cmpabs(other) ⇒ Object

mpfr_cmpabs(self, p1).



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# File 'ext/mpfr/ruby_mpfr.c', line 1388

static VALUE r_mpfr_cmpabs(VALUE self, VALUE other)
{
  MPFR *ptr_self, *ptr_other;
  volatile VALUE tmp_other;
  r_mpfr_get_struct(ptr_self, self);
  tmp_other = r_mpfr_new_fr_obj(other);
  r_mpfr_get_struct(ptr_other, tmp_other);
  return INT2FIX(mpfr_cmpabs(ptr_self, ptr_other));
}

#coerce(other) ⇒ Object

Return array which have MPFR instance converted to from p1 and self.



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# File 'ext/mpfr/ruby_mpfr.c', line 565

static VALUE r_mpfr_coerce(VALUE self, VALUE other)
{
  return rb_ary_new3(2, r_mpfr_global_new(1, &other, r_mpfr_class), self);
}

#copysign(*args) ⇒ Object

mpfr_copysign(ret, self, p1, rnd)



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# File 'ext/mpfr/ruby_mpfr.c', line 1854

static VALUE r_mpfr_copysign(int argc, VALUE *argv, VALUE self)
{
  mp_rnd_t rnd;
  mp_prec_t prec;
  MPFR *ptr_self, *ptr_return, *ptr_arg;
  VALUE val_ret;
  volatile VALUE tmp_argv0;
  r_mpfr_get_rnd_prec_from_optional_arguments(&rnd, &prec, 2, 4, argc, argv);
  r_mpfr_get_struct(ptr_self, self);
  r_mpfr_make_struct_init2(val_ret, ptr_return, prec);
  tmp_argv0 = r_mpfr_new_fr_obj(argv[0]);
  r_mpfr_get_struct(ptr_arg, tmp_argv0);
  mpfr_copysign(ptr_return, ptr_self, ptr_arg, rnd);
  return val_ret;
}

#equal_p(other) ⇒ Object

Return true if self == other, nil otherwise.



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# File 'ext/mpfr/ruby_mpfr.c', line 1526

static VALUE r_mpfr_equal_p(VALUE self, VALUE other)
{
  MPFR *ptr_self, *ptr_other;
  volatile VALUE tmp_other;
  r_mpfr_get_struct(ptr_self, self);
  tmp_other = r_mpfr_new_fr_obj(other);
  r_mpfr_get_struct(ptr_other, tmp_other);
  return (mpfr_equal_p(ptr_self, ptr_other) != 0 ? Qtrue : Qfalse);
}

#floor ⇒ Object

Return Fixnum object which is the maximum integer not over self.



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# File 'ext/mpfr/ruby_mpfr.c', line 838

static VALUE r_mpfr_floor_to_i(VALUE self)
{
  MPFR *ptr_self;
  r_mpfr_get_struct(ptr_self, self);
  if (mpfr_fits_slong_p(ptr_self, GMP_RNDD)) {
    return LONG2NUM(mpfr_get_si(ptr_self, GMP_RNDD));
  } else if (mpfr_nan_p(ptr_self)) {
    rb_raise(__mpfr_domain_error__, "Can not convert NaN to an integer");
  } else {
    MPFR *tmp_int;
    char *tmp_str;
    VALUE bignum;
    r_mpfr_temp_alloc_init2(tmp_int, mpfr_get_prec(ptr_self));
    mpfr_floor(tmp_int, ptr_self);
    if (!mpfr_asprintf(&tmp_str, "%Rf", tmp_int)) {
      rb_raise(rb_eFatal, "Can not allocate a string by mpfr_asprintf.");
    }
    bignum = rb_cstr_to_inum(tmp_str, 10, false);
    r_mpfr_temp_free(tmp_int);
    return bignum;
  }
}

#fmod(*args) ⇒ Object

mpfr_fmod(ret, self, p1, rnd)



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# File 'ext/mpfr/ruby_mpfr.c', line 1699

static VALUE r_mpfr_fmod(int argc, VALUE *argv, VALUE self)
{
  mp_rnd_t rnd;
  mp_prec_t prec;
  MPFR *ptr_self, *ptr_other, *ptr_return;
  VALUE val_ret;
  volatile VALUE tmp_argv0;
  r_mpfr_get_rnd_prec_from_optional_arguments(&rnd, &prec, 1, 3, argc, argv);
  r_mpfr_get_struct(ptr_self, self);
  r_mpfr_make_struct_init2(val_ret, ptr_return, prec);
  tmp_argv0 = r_mpfr_new_fr_obj(argv[0]);
  r_mpfr_get_struct(ptr_other, tmp_argv0);
  mpfr_fmod(ptr_return, ptr_self, ptr_other, rnd);
  return val_ret;
}

#fr_ceil(*args) ⇒ Object

mpfr_ceil(ret, self)



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# File 'ext/mpfr/ruby_mpfr.c', line 1566

static VALUE r_mpfr_fr_ceil(int argc, VALUE *argv, VALUE self)
{
  mp_prec_t prec = r_mpfr_prec_from_optional_argument(0, 1, argc, argv);
  MPFR *ptr_self, *ptr_return;
  VALUE val_ret;
  r_mpfr_get_struct(ptr_self, self);
  r_mpfr_make_struct_init2(val_ret, ptr_return, prec);
  mpfr_ceil(ptr_return, ptr_self);
  return val_ret;
}

#fr_floor(*args) ⇒ Object

mpfr_floor(ret, self)



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# File 'ext/mpfr/ruby_mpfr.c', line 1578

static VALUE r_mpfr_fr_floor(int argc, VALUE *argv, VALUE self)
{
  mp_prec_t prec = r_mpfr_prec_from_optional_argument(0, 1, argc, argv);
  MPFR *ptr_self, *ptr_return;
  VALUE val_ret;
  r_mpfr_get_struct(ptr_self, self);
  r_mpfr_make_struct_init2(val_ret, ptr_return, prec);
  mpfr_floor(ptr_return, ptr_self);
  return val_ret;
}

#fr_rint(*args) ⇒ Object

mpfr_rint(ret, self, rnd)



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# File 'ext/mpfr/ruby_mpfr.c', line 1552

static VALUE r_mpfr_fr_rint(int argc, VALUE *argv, VALUE self)
{
  mp_rnd_t rnd;
  mp_prec_t prec;
  MPFR *ptr_self, *ptr_return;
  VALUE val_ret;
  r_mpfr_get_rnd_prec_from_optional_arguments(&rnd, &prec, 0, 2, argc, argv);
  r_mpfr_get_struct(ptr_self, self);
  r_mpfr_make_struct_init2(val_ret, ptr_return, prec);
  mpfr_rint(ptr_return, ptr_self, rnd);
  return val_ret;
}

#fr_round(*args) ⇒ Object

mpfr_round(ret, self)



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# File 'ext/mpfr/ruby_mpfr.c', line 1590

static VALUE r_mpfr_fr_round(int argc, VALUE *argv, VALUE self)
{
  mp_prec_t prec = r_mpfr_prec_from_optional_argument(0, 1, argc, argv);
  MPFR *ptr_self, *ptr_return;
  VALUE val_ret;
  r_mpfr_get_struct(ptr_self, self);
  r_mpfr_make_struct_init2(val_ret, ptr_return, prec);
  mpfr_round(ptr_return, ptr_self);
  return val_ret;
}

#fr_trunc(*args) ⇒ Object

mpfr_trunc(ret, self)



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# File 'ext/mpfr/ruby_mpfr.c', line 1602

static VALUE r_mpfr_fr_trunc(int argc, VALUE *argv, VALUE self)
{
  mp_prec_t prec = r_mpfr_prec_from_optional_argument(0, 1, argc, argv);
  MPFR *ptr_self, *ptr_return;
  VALUE val_ret;
  r_mpfr_get_struct(ptr_self, self);
  r_mpfr_make_struct_init2(val_ret, ptr_return, prec);
  mpfr_trunc(ptr_return, ptr_self);
  return val_ret;
}

#frac(*args) ⇒ Object

mpfr_frac(ret, self, rnd)



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# File 'ext/mpfr/ruby_mpfr.c', line 1670

static VALUE r_mpfr_frac(int argc, VALUE *argv, VALUE self)
{
  mp_rnd_t rnd;
  mp_prec_t prec;
  MPFR *ptr_self, *ptr_return;
  VALUE val_ret;
  r_mpfr_get_rnd_prec_from_optional_arguments(&rnd, &prec, 0, 2, argc, argv);
  r_mpfr_get_struct(ptr_self, self);
  r_mpfr_make_struct_init2(val_ret, ptr_return, prec);
  mpfr_frac(ptr_return, ptr_self, rnd);
  return val_ret;
}

#get_d(*args) ⇒ Object Also known as: to_f

Return Float object by converting self. Optional argument is rnd meaning rounding mode. See MPFR reference for detail.



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# File 'ext/mpfr/ruby_mpfr.c', line 770

static VALUE r_mpfr_get_d(int argc, VALUE *argv, VALUE self)
{
  MPFR *ptr_self;
  r_mpfr_get_struct(ptr_self, self);
  return rb_float_new(mpfr_get_d(ptr_self, r_mpfr_rnd_from_optional_argument(0, 1, argc, argv)));
}

#get_d_2exp(*args) ⇒ Object

d times 2 raised to exp equals self rounded to double precision. See MPFR reference for detail.



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# File 'ext/mpfr/ruby_mpfr.c', line 779

static VALUE r_mpfr_get_d_2exp(int argc, VALUE *argv, VALUE self)
{
  MPFR *ptr_self;
  double ret_val1;
  long int ret_val2;
  r_mpfr_get_struct(ptr_self, self);
  ret_val1 = mpfr_get_d_2exp(&ret_val2, ptr_self, r_mpfr_rnd_from_optional_argument(0, 1, argc, argv));
  return rb_ary_new3(2, rb_float_new(ret_val1), LONG2NUM(ret_val2));
}

#get_exp ⇒ Object

If self is not number, return nil. Otherwise return an integer mpfr_get_exp(self).



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# File 'ext/mpfr/ruby_mpfr.c', line 1807

static VALUE r_mpfr_get_exp(VALUE self)
{
  MPFR *ptr_self;
  r_mpfr_get_struct(ptr_self, self);
  if(mpfr_number_p(ptr_self) != 0){
    return INT2FIX(mpfr_get_exp(ptr_self));
  }else{
    return Qnil;
  }
}

#get_prec ⇒ Object

Return precision actually used for assignments of self.



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# File 'ext/mpfr/ruby_mpfr.c', line 632

static VALUE r_mpfr_get_prec(VALUE self)
{
  MPFR *ptr_self;
  r_mpfr_get_struct(ptr_self, self);
  return INT2NUM((int)mpfr_get_prec(ptr_self));
}

#get_str ⇒ Object

Return array having String object meaning mantissa and Fixnum object meaning exponent. See MPFR reference for detail.



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# File 'ext/mpfr/ruby_mpfr.c', line 886

static VALUE r_mpfr_get_str(VALUE self)
{
  MPFR *ptr_self;
  mp_exp_t e;
  char *str;
  VALUE ret_str;
  r_mpfr_get_struct(ptr_self, self);
  str = mpfr_get_str(NULL, &e, 10, 0, ptr_self, GMP_RNDN);
  ret_str = rb_str_new2(str);
  mpfr_free_str(str);
  return rb_ary_new3(2, ret_str, INT2FIX((int)e));
}

#get_z_2exp ⇒ Object 



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# File 'ext/gmp/mpfr/ruby_mpfr_gmp.c', line 39

static VALUE r_mpfr_get_z_2exp(VALUE self)
{
  VALUE ptr_return;
  MPFR *ptr_self;
  MP_INT *ptr_mpz;
  long int exp;
  r_mpfr_get_struct(ptr_self, self);
  mpz_make_struct_init(ptr_return, ptr_mpz);
  exp = mpfr_get_z_2exp(ptr_mpz, ptr_self);
  return rb_ary_new3(2, ptr_return, INT2NUM(exp));
}

#greater_p(other) ⇒ Object

Return true if self > other, nil otherwise.



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# File 'ext/mpfr/ruby_mpfr.c', line 1471

static VALUE r_mpfr_greater_p(VALUE self, VALUE other)
{
  MPFR *ptr_self, *ptr_other;
  volatile VALUE tmp_other;
  r_mpfr_get_struct(ptr_self, self);
  tmp_other = r_mpfr_new_fr_obj(other);
  r_mpfr_get_struct(ptr_other, tmp_other);
  return (mpfr_greater_p(ptr_self, ptr_other) != 0 ? Qtrue : Qfalse);
}

#greaterequal_p(other) ⇒ Object

Return true if self >= other, nil otherwise.



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# File 'ext/mpfr/ruby_mpfr.c', line 1482

static VALUE r_mpfr_greaterequal_p(VALUE self, VALUE other)
{
  MPFR *ptr_self, *ptr_other;
  volatile VALUE tmp_other;
  r_mpfr_get_struct(ptr_self, self);
  tmp_other = r_mpfr_new_fr_obj(other);
  r_mpfr_get_struct(ptr_other, tmp_other);
  return (mpfr_greaterequal_p(ptr_self, ptr_other) != 0 ? Qtrue : Qfalse);
}

#inf_p ⇒ Object

Return true if self is infinity, nil otherwise.



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# File 'ext/mpfr/ruby_mpfr.c', line 1411

static VALUE r_mpfr_inf_p(VALUE self)
{
  MPFR *ptr_self;
  r_mpfr_get_struct(ptr_self, self);
  return (mpfr_inf_p(ptr_self) != 0 ? Qtrue : Qfalse);
}

#infinite? ⇒ Boolean

Return 1 if self is plus infinity, -1 if minus infinity. nil otherwise.

Returns:

  • (Boolean) 


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# File 'ext/mpfr/ruby_mpfr.c', line 1419

static VALUE r_mpfr_inf_p2(VALUE self)
{
  MPFR *ptr_self;
  r_mpfr_get_struct(ptr_self, self);
  if(mpfr_inf_p(ptr_self) != 0){
    return (mpfr_sgn(ptr_self) > 0 ? INT2NUM(1) : INT2NUM(-1));
  }else{
    return Qfalse;
  }
}

#inspect ⇒ Object

Output for debugging.



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# File 'ext/mpfr/ruby_mpfr.c', line 750

static VALUE r_mpfr_inspect(VALUE self)
{
  MPFR *ptr_s;
  char *ret_str;
  VALUE ret_val;
  r_mpfr_get_struct(ptr_s, self);
  if (!mpfr_asprintf(&ret_str, "#<MPFR:%lx,'%0.Re',%d>", NUM2LONG(rb_funcall(self, object_id, 0)),
		     ptr_s, mpfr_get_prec(ptr_s))) {
    rb_raise(rb_eFatal, "Can not allocate a string by mpfr_asprintf.");
  }
  ret_val = rb_str_new2(ret_str);
  mpfr_free_str(ret_str);
  return ret_val;
}

#integer_p ⇒ Object Also known as: integer?

If value of self is integer, return true. Otherwise, nil.



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# File 'ext/mpfr/ruby_mpfr.c', line 1765

static VALUE r_mpfr_integer_p(VALUE self)
{
  MPFR *ptr_self;
  r_mpfr_get_struct(ptr_self, self);
  return (mpfr_integer_p(ptr_self) != 0 ? Qtrue : Qnil);
}

#less_p(other) ⇒ Object

Return true if self < other, nil otherwise.



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# File 'ext/mpfr/ruby_mpfr.c', line 1493

static VALUE r_mpfr_less_p(VALUE self, VALUE other)
{
  MPFR *ptr_self, *ptr_other;
  volatile VALUE tmp_other;
  r_mpfr_get_struct(ptr_self, self);
  tmp_other = r_mpfr_new_fr_obj(other);
  r_mpfr_get_struct(ptr_other, tmp_other);
  return (mpfr_less_p(ptr_self, ptr_other) != 0 ? Qtrue : Qfalse);
}

#lessequal_p(other) ⇒ Object

Return true if self <= other, nil otherwise.



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# File 'ext/mpfr/ruby_mpfr.c', line 1504

static VALUE r_mpfr_lessequal_p(VALUE self, VALUE other)
{
  MPFR *ptr_self, *ptr_other;
  volatile VALUE tmp_other;
  r_mpfr_get_struct(ptr_self, self);
  tmp_other = r_mpfr_new_fr_obj(other);
  r_mpfr_get_struct(ptr_other, tmp_other);
  return (mpfr_lessequal_p(ptr_self, ptr_other) != 0 ? Qtrue : Qfalse);
}

#lessgreater_p(other) ⇒ Object

Return true if self < other or self > other, nil otherwise.



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# File 'ext/mpfr/ruby_mpfr.c', line 1515

static VALUE r_mpfr_lessgreater_p(VALUE self, VALUE other)
{
  MPFR *ptr_self, *ptr_other;
  volatile VALUE tmp_other;
  r_mpfr_get_struct(ptr_self, self);
  tmp_other = r_mpfr_new_fr_obj(other);
  r_mpfr_get_struct(ptr_other, tmp_other);
  return (mpfr_lessgreater_p(ptr_self, ptr_other) != 0 ? Qtrue : Qfalse);
}

#marshal_dump ⇒ Object 



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# File 'ext/mpfr/ruby_mpfr.c', line 2951

static VALUE r_mpfr_marshal_dump(VALUE self)
{
  MPFR *ptr_s;
  char *ret_str;
  VALUE ret_val;
  r_mpfr_get_struct(ptr_s, self);
  ret_str = r_mpfr_dump_to_string(ptr_s);
  ret_val = rb_str_new2(ret_str);
  mpfr_free_str(ret_str);
  return ret_val;
}

#marshal_load(dump_string) ⇒ Object 



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# File 'ext/mpfr/ruby_mpfr.c', line 3005

static VALUE r_mpfr_marshal_load(VALUE self, VALUE dump_string)
{
  MPFR *ptr_s;
  r_mpfr_get_struct(ptr_s, self);
  Check_Type(dump_string, T_STRING);
  r_mpfr_load_string(ptr_s, RSTRING_PTR(dump_string));
  return self;
}

#min_prec ⇒ Object

mpfr_min_prec(self)



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# File 'ext/mpfr/ruby_mpfr.c', line 1913

static VALUE r_mpfr_min_prec(VALUE self)
{
  MPFR *ptr_self;
  r_mpfr_get_struct(ptr_self, self);
  return INT2NUM(mpfr_min_prec(ptr_self));
}

#modf(*args) ⇒ Object

Return [ret1, ret2] such that mpfr_modf(ret1, ret2, self, rnd).



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# File 'ext/mpfr/ruby_mpfr.c', line 1684

static VALUE r_mpfr_modf(int argc, VALUE *argv, VALUE self)
{
  mp_rnd_t rnd;
  mp_prec_t prec;
  MPFR *ptr_self, *ptr_return1, *ptr_return2;
  VALUE val_ret1, val_ret2;
  r_mpfr_get_rnd_prec_from_optional_arguments(&rnd, &prec, 0, 2, argc, argv);
  r_mpfr_get_struct(ptr_self, self);
  r_mpfr_make_struct_init2(val_ret1, ptr_return1, prec);
  r_mpfr_make_struct_init2(val_ret2, ptr_return2, prec);
  mpfr_modf(ptr_return1, ptr_return2, ptr_self, rnd);
  return rb_ary_new3(2, val_ret1, val_ret2);
}

#nan_p ⇒ Object Also known as: nan?

Return true if self is NaN, nil otherwise.



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# File 'ext/mpfr/ruby_mpfr.c', line 1399

static VALUE r_mpfr_nan_p(VALUE self)
{
  MPFR *ptr_self;
  r_mpfr_get_struct(ptr_self, self);
  if(mpfr_nan_p(ptr_self) != 0){
    return Qtrue;
  }else{
    return Qfalse;
  }
}

#neg(*args) ⇒ Object

Return negative value of self.



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# File 'ext/mpfr/ruby_mpfr.c', line 1037

static VALUE r_mpfr_neg(int argc, VALUE *argv, VALUE self)
{
  mp_rnd_t rnd;
  mp_prec_t prec;
  MPFR *ptr_self, *ptr_return;
  VALUE val_ret;
  r_mpfr_get_rnd_prec_from_optional_arguments(&rnd, &prec, 0, 2, argc, argv);
  r_mpfr_get_struct(ptr_self, self);
  r_mpfr_make_struct_init2(val_ret, ptr_return, prec);
  mpfr_neg(ptr_return, ptr_self, rnd);
  return val_ret;
}

#nextabove ⇒ Object

mpfr_nextabove(self)



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# File 'ext/mpfr/ruby_mpfr.c', line 1789

static VALUE r_mpfr_nextabove(VALUE self)
{
  MPFR *ptr_self;
  r_mpfr_get_struct(ptr_self, self);
  mpfr_nextabove(ptr_self);
  return self;
}

#nextbelow ⇒ Object

mpfr_nextbelow(self)



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# File 'ext/mpfr/ruby_mpfr.c', line 1798

static VALUE r_mpfr_nextbelow(VALUE self)
{
  MPFR *ptr_self;
  r_mpfr_get_struct(ptr_self, self);
  mpfr_nextbelow(ptr_self);
  return self;
}

#nexttoward(other) ⇒ Object

mpfr_nexttoward(self, p1)



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# File 'ext/mpfr/ruby_mpfr.c', line 1777

static VALUE r_mpfr_nexttoward(VALUE self, VALUE other)
{
  MPFR *ptr_self, *ptr_other;
  volatile VALUE tmp_other;
  r_mpfr_get_struct(ptr_self, self);
  tmp_other = r_mpfr_new_fr_obj(other);
  r_mpfr_get_struct(ptr_other, tmp_other);
  mpfr_nexttoward(ptr_self, ptr_other);
  return self;
}

#nonzero? ⇒ Boolean

Return true if self is non zero, nil otherwise.

Returns:

  • (Boolean) 


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# File 'ext/mpfr/ruby_mpfr.c', line 1447

static VALUE r_mpfr_nonzero_p(VALUE self)
{
  MPFR *ptr_self;
  r_mpfr_get_struct(ptr_self, self);
  return (mpfr_zero_p(ptr_self) == 0 ? Qtrue : Qfalse);
}

#number_p ⇒ Object Also known as: finite?

Return true if self is number, nil otherwise



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# File 'ext/mpfr/ruby_mpfr.c', line 1431

static VALUE r_mpfr_number_p(VALUE self)
{
  MPFR *ptr_self;
  r_mpfr_get_struct(ptr_self, self);
  return (mpfr_number_p(ptr_self) != 0 ? Qtrue : Qfalse);
}

#prec_round(*args) ⇒ Object

mpfr_prec_round(ret, prec, rnd)



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# File 'ext/mpfr/ruby_mpfr.c', line 1875

static VALUE r_mpfr_prec_round(int argc, VALUE *argv, VALUE self)
{
  mp_rnd_t rnd;
  mp_prec_t prec;
  MPFR *ptr_self, *ptr_return;
  VALUE val_ret;
  r_mpfr_get_rnd_prec_from_optional_arguments(&rnd, &prec, 0, 2, argc, argv);
  r_mpfr_get_struct(ptr_self, self);
  r_mpfr_make_struct_init2(val_ret, ptr_return, mpfr_get_prec(ptr_self));
  mpfr_set(ptr_return, ptr_self, mpfr_get_default_prec());
  mpfr_prec_round(ptr_return, prec, rnd);
  return val_ret;
}

#prec_round!(*args) ⇒ Object

mpfr_prec_round(self, prec, rnd)



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# File 'ext/mpfr/ruby_mpfr.c', line 1890

static VALUE r_mpfr_prec_round2(int argc, VALUE *argv, VALUE self)
{
  mp_rnd_t rnd;
  mp_prec_t prec;
  MPFR *ptr_self;
  r_mpfr_get_rnd_prec_from_optional_arguments(&rnd, &prec, 0, 2, argc, argv);
  r_mpfr_get_struct(ptr_self, self);
  mpfr_prec_round(ptr_self, prec, rnd);
  return self;
}

#regular? ⇒ Boolean

Return true if self is regular number, nil otherwise.

Returns:

  • (Boolean) 


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# File 'ext/mpfr/ruby_mpfr.c', line 1455

static VALUE r_mpfr_regular_p(VALUE self)
{
  MPFR *ptr_self;
  r_mpfr_get_struct(ptr_self, self);
  return (mpfr_regular_p(ptr_self) != 0 ? Qtrue : Qfalse);
}

#remainder(*args) ⇒ Object

mpfr_remainder(ret, self, p1, rnd)



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# File 'ext/mpfr/ruby_mpfr.c', line 1716

static VALUE r_mpfr_remainder(int argc, VALUE *argv, VALUE self)
{
  mp_rnd_t rnd;
  mp_prec_t prec;
  MPFR *ptr_self, *ptr_other, *ptr_return;
  VALUE val_ret;
  volatile VALUE tmp_argv0;
  r_mpfr_get_rnd_prec_from_optional_arguments(&rnd, &prec, 1, 3, argc, argv);
  r_mpfr_get_struct(ptr_self, self);
  r_mpfr_make_struct_init2(val_ret, ptr_return, prec);
  tmp_argv0 = r_mpfr_new_fr_obj(argv[0]);
  r_mpfr_get_struct(ptr_other, tmp_argv0);
  mpfr_remainder(ptr_return, ptr_self, ptr_other, rnd);
  return val_ret;
}

#remquo(*args) ⇒ Object

mpfr_remquo(ret1, ret2, self, p1, rnd)



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# File 'ext/mpfr/ruby_mpfr.c', line 1747

static VALUE r_mpfr_remquo(int argc, VALUE *argv, VALUE self)
{
  mp_rnd_t rnd;
  mp_prec_t prec;
  MPFR *ptr_self, *ptr_other, *ptr_return;
  VALUE val_ret;
  long q;
  volatile VALUE tmp_argv0;
  r_mpfr_get_rnd_prec_from_optional_arguments(&rnd, &prec, 1, 3, argc, argv);
  r_mpfr_get_struct(ptr_self, self);
  r_mpfr_make_struct_init2(val_ret, ptr_return, prec);
  tmp_argv0 = r_mpfr_new_fr_obj(argv[0]);
  r_mpfr_get_struct(ptr_other, tmp_argv0);
  mpfr_remquo(ptr_return, &q, ptr_self, ptr_other, rnd);
  return rb_ary_new3(2, val_ret, LONG2FIX(q));
}

#rint_ceil(*args) ⇒ Object

mpfr_rint_ceil(ret, self, rnd)



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# File 'ext/mpfr/ruby_mpfr.c', line 1614

static VALUE r_mpfr_rint_ceil(int argc, VALUE *argv, VALUE self)
{
  mp_rnd_t rnd;
  mp_prec_t prec;
  MPFR *ptr_self, *ptr_return;
  VALUE val_ret;
  r_mpfr_get_rnd_prec_from_optional_arguments(&rnd, &prec, 0, 2, argc, argv);
  r_mpfr_get_struct(ptr_self, self);
  r_mpfr_make_struct_init2(val_ret, ptr_return, prec);
  mpfr_rint_ceil(ptr_return, ptr_self, rnd);
  return val_ret;
}

#rint_floor(*args) ⇒ Object

mpfr_rint_floor(ret, self, rnd)



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# File 'ext/mpfr/ruby_mpfr.c', line 1628

static VALUE r_mpfr_rint_floor(int argc, VALUE *argv, VALUE self)
{
  mp_rnd_t rnd;
  mp_prec_t prec;
  MPFR *ptr_self, *ptr_return;
  VALUE val_ret;
  r_mpfr_get_rnd_prec_from_optional_arguments(&rnd, &prec, 0, 2, argc, argv);
  r_mpfr_get_struct(ptr_self, self);
  r_mpfr_make_struct_init2(val_ret, ptr_return, prec);
  mpfr_rint_floor(ptr_return, ptr_self, rnd);
  return val_ret;
}

#rint_round(*args) ⇒ Object

mpfr_rint_round(ret, self, rnd)



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# File 'ext/mpfr/ruby_mpfr.c', line 1642

static VALUE r_mpfr_rint_round(int argc, VALUE *argv, VALUE self)
{
  mp_rnd_t rnd;
  mp_prec_t prec;
  MPFR *ptr_self, *ptr_return;
  VALUE val_ret;
  r_mpfr_get_rnd_prec_from_optional_arguments(&rnd, &prec, 0, 2, argc, argv);
  r_mpfr_get_struct(ptr_self, self);
  r_mpfr_make_struct_init2(val_ret, ptr_return, prec);
  mpfr_rint_round(ptr_return, ptr_self, rnd);
  return val_ret;
}

#rint_trunc(*args) ⇒ Object

mpfr_rint_trunc(ret, self, rnd)



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# File 'ext/mpfr/ruby_mpfr.c', line 1656

static VALUE r_mpfr_rint_trunc(int argc, VALUE *argv, VALUE self)
{
  mp_rnd_t rnd;
  mp_prec_t prec;
  MPFR *ptr_self, *ptr_return;
  VALUE val_ret;
  r_mpfr_get_rnd_prec_from_optional_arguments(&rnd, &prec, 0, 2, argc, argv);
  r_mpfr_get_struct(ptr_self, self);
  r_mpfr_make_struct_init2(val_ret, ptr_return, prec);
  mpfr_rint_trunc(ptr_return, ptr_self, rnd);
  return val_ret;
}

#round ⇒ Object

Return Fixnum object which is nearest integer to self.



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# File 'ext/mpfr/ruby_mpfr.c', line 790

static VALUE r_mpfr_round_to_i(VALUE self)
{
  MPFR *ptr_self;
  r_mpfr_get_struct(ptr_self, self);
  if (mpfr_fits_slong_p(ptr_self, GMP_RNDN)) {
    return LONG2NUM(mpfr_get_si(ptr_self, GMP_RNDN));
  } else if (mpfr_nan_p(ptr_self)) {
    rb_raise(__mpfr_domain_error__, "Can not convert NaN to an integer");
  } else {
    MPFR *tmp_int;
    char *tmp_str;
    VALUE bignum;
    r_mpfr_temp_alloc_init2(tmp_int, mpfr_get_prec(ptr_self));
    mpfr_round(tmp_int, ptr_self);
    if (!mpfr_asprintf(&tmp_str, "%Rf", tmp_int)) {
      rb_raise(rb_eFatal, "Can not allocate a string by mpfr_asprintf.");
    }
    bignum = rb_cstr_to_inum(tmp_str, 10, false);
    r_mpfr_temp_free(tmp_int);
    return bignum;
  }
}

#set(*args) ⇒ Object

Arguments are val, rnd, and prec. Set the value of self from val. rnd and prec are optional.



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# File 'ext/mpfr/ruby_mpfr.c', line 640

static VALUE r_mpfr_set(int argc, VALUE *argv, VALUE self)
{
  MPFR *ptr_self;
  mp_rnd_t rnd;
  r_mpfr_get_struct(ptr_self, self);
  rnd = r_mpfr_rnd_from_optional_argument(1, 2, argc, argv);
  r_mpfr_set_robj(ptr_self, argv[0], rnd);
  return self;
}

#set_exp(arg_exp) ⇒ Object

arg_exp is integer and we execute mpfr_set_exp(self, arg_exp).



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# File 'ext/mpfr/ruby_mpfr.c', line 1819

static VALUE r_mpfr_set_exp(VALUE self, VALUE arg_exp)
{
  MPFR *ptr_self;
  mp_exp_t exp;
  r_mpfr_get_struct(ptr_self, self);
  exp = NUM2INT(arg_exp);
  mpfr_set_exp(ptr_self, exp);
  return self;
}

#set_fixnum_2exp(*args) ⇒ Object

Arguments are num, exp, rnd, and prec. Set the value of self from num multiplied by two to the power exp. Set the value of self from val. rnd and prec are optional.



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# File 'ext/mpfr/ruby_mpfr.c', line 654

static VALUE r_mpfr_set_fixnum_2exp(int argc, VALUE *argv, VALUE self)
{
  MPFR *ptr_self;
  mp_rnd_t rnd;
  r_mpfr_get_struct(ptr_self, self);
  rnd = r_mpfr_rnd_from_optional_argument(2, 3, argc, argv);
  mpfr_set_si_2exp(ptr_self, NUM2INT(argv[0]), NUM2INT(argv[1]), rnd);
  return self;
}

#set_inf(sign) ⇒ Object

If p1 is nonnegative Fixnum, set the value of self to plus Inf. Otherwise, set the value of self to minus Inf.



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# File 'ext/mpfr/ruby_mpfr.c', line 668

static VALUE r_mpfr_set_inf(VALUE self, VALUE sign)
{
  MPFR *ptr_self;
  r_mpfr_get_struct(ptr_self, self);
  mpfr_set_inf(ptr_self, NUM2INT(sign));
  return self;
}

#set_nan ⇒ Object

Set the value of self to NaN.



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# File 'ext/mpfr/ruby_mpfr.c', line 677

static VALUE r_mpfr_set_nan(VALUE self)
{
  MPFR *ptr_self;
  r_mpfr_get_struct(ptr_self, self);
  mpfr_set_nan(ptr_self);
  return self;
}

#set_prec(prec) ⇒ Object

Reset the precision of self to be exactly p1 bits and set its value to NaN.



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# File 'ext/mpfr/ruby_mpfr.c', line 623

static VALUE r_mpfr_set_prec(VALUE self, VALUE prec)
{
  MPFR *ptr_self;
  r_mpfr_get_struct(ptr_self, self);
  mpfr_set_prec(ptr_self, NUM2INT(prec));
  return INT2NUM((int)mpfr_get_prec(ptr_self));
}

#set_zero(*args) ⇒ Object

Set the value of self to zero.



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# File 'ext/mpfr/ruby_mpfr.c', line 686

static VALUE r_mpfr_set_zero(int argc, VALUE *argv, VALUE self)
{
  int sign = 1;
  MPFR *ptr_self;
  r_mpfr_get_struct(ptr_self, self);
  if (argc == 1) {
    sign = NUM2INT(argv[0]);
  } else if (argc > 1) {
    rb_raise(rb_eArgError, "Invalid number of arguments.");
  }
  mpfr_set_zero(ptr_self, sign);
  return self;
}

#setsign(*args) ⇒ Object

mpfr_setsign(ret, self, p1, rnd)



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# File 'ext/mpfr/ruby_mpfr.c', line 1838

static VALUE r_mpfr_setsign(int argc, VALUE *argv, VALUE self)
{
  mp_rnd_t rnd;
  mp_prec_t prec;
  MPFR *ptr_self, *ptr_return;
  VALUE val_ret;
  int s;
  r_mpfr_get_rnd_prec_from_optional_arguments(&rnd, &prec, 2, 4, argc, argv);
  r_mpfr_get_struct(ptr_self, self);
  r_mpfr_make_struct_init2(val_ret, ptr_return, prec);
  s = NUM2INT(argv[0]);
  mpfr_setsign(ptr_return, ptr_self, s, rnd);
  return val_ret;
}

#sgn ⇒ Object

mpfr_sgn(self).



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# File 'ext/mpfr/ruby_mpfr.c', line 1463

static VALUE r_mpfr_sgn(VALUE self)
{
  MPFR *ptr_self;
  r_mpfr_get_struct(ptr_self, self);
  return INT2FIX(mpfr_sgn(ptr_self));
}

#signbit ⇒ Object

Return integer which is mpfr_signbit(self).



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# File 'ext/mpfr/ruby_mpfr.c', line 1830

static VALUE r_mpfr_signbit(VALUE self)
{
  MPFR *ptr_self;
  r_mpfr_get_struct(ptr_self, self);
  return INT2FIX(mpfr_signbit(ptr_self));
}

#subnormalize(*args) ⇒ Object

Execute mpfr_subnormalize( self, p1, rnd ) and return self.



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# File 'ext/mpfr/ruby_mpfr.c', line 333

static VALUE r_mpfr_subnormalize(int argc, VALUE *argv, VALUE self)
{
  mp_rnd_t rnd = r_mpfr_rnd_from_optional_argument(1, 2, argc, argv);
  MPFR *ptr_self;
  r_mpfr_get_struct(ptr_self, self);
  mpfr_subnormalize(ptr_self, NUM2INT(argv[0]), rnd);
  return self;
}

#swap(other) ⇒ Object

Swap the values self and p1 efficiently. p1 must be MPFR object.



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# File 'ext/mpfr/ruby_mpfr.c', line 701

static VALUE r_mpfr_swap(VALUE self, VALUE other)
{
  MPFR *ptr_self, *ptr_other;
  r_mpfr_get_struct(ptr_self, self);
  if(MPFR_P(other)){
    r_mpfr_get_struct(ptr_other, other);
  }else{
    rb_raise(rb_eArgError, "Argument must be MPFR object.");
  }
  mpfr_swap(ptr_self, ptr_other);
  return self;
}

#to_mpf(*args) ⇒ Object 



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# File 'ext/gmp/mpfr/ruby_mpfr_gmp.c', line 9

static VALUE r_mpfr_to_mpf(int argc, VALUE *argv, VALUE self)
{
  VALUE ptr_return;
  MPFR *ptr_self;
  MP_FLOAT *ptr_mpf;
  mp_rnd_t rnd;
  rnd = r_mpfr_rnd_from_optional_argument(0, 1, argc, argv);
  r_mpfr_get_struct(ptr_self, self);
  mpf_make_struct_init(ptr_return, ptr_mpf, mpfr_get_prec(ptr_self));
#if defined(MPFR) && defined(HAVE_MPFR_H)
  mpfr_set(ptr_mpf, ptr_self, rnd);
#else
  mpfr_get_f(ptr_mpf, ptr_self, rnd);
#endif
  return ptr_return;
}

#to_mpz(*args) ⇒ Object 



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# File 'ext/gmp/mpfr/ruby_mpfr_gmp.c', line 26

static VALUE r_mpfr_to_mpz(int argc, VALUE *argv, VALUE self)
{
  VALUE ptr_return;
  MPFR *ptr_self;
  MP_INT *ptr_mpz;
  mp_rnd_t rnd;
  rnd = r_mpfr_rnd_from_optional_argument(0, 1, argc, argv);
  r_mpfr_get_struct(ptr_self, self);
  mpz_make_struct_init(ptr_return, ptr_mpz);
  mpfr_get_z(ptr_mpz, ptr_self, rnd);
  return ptr_return;
}

#to_s ⇒ Object

Convert to string.



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# File 'ext/mpfr/ruby_mpfr.c', line 735

static VALUE r_mpfr_to_s(VALUE self)
{
  MPFR *ptr_self;
  char *ret_str;
  VALUE ret_val;
  r_mpfr_get_struct(ptr_self, self);
  if (!mpfr_asprintf(&ret_str, "%.Re", ptr_self)) {
    rb_raise(rb_eFatal, "Can not allocate a string by mpfr_asprintf.");
  }
  ret_val = rb_str_new2(ret_str);
  mpfr_free_str(ret_str);
  return ret_val;
}

#to_strf(format_str) ⇒ Object

Output self by mpfr_asprintf( some_val, p1, self ). For example, p1 are “%.Re”, “%.Rf” or “%.30Re” etc.



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# File 'ext/mpfr/ruby_mpfr.c', line 719

static VALUE r_mpfr_to_strf(VALUE self, VALUE format_str)
{
  MPFR *ptr_self;
  char *format, *ret_str;
  VALUE ret_val;
  r_mpfr_get_struct(ptr_self, self);
  format = StringValuePtr(format_str);
  if (!mpfr_asprintf(&ret_str, format, ptr_self)) {
    rb_raise(rb_eFatal, "Can not allocate a string by mpfr_asprintf.");
  }
  ret_val = rb_str_new2(ret_str);
  mpfr_free_str(ret_str);
  return ret_val;
}

#truncate ⇒ Object Also known as: to_i, to_int

Return Fixnum object by truncating self.



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# File 'ext/mpfr/ruby_mpfr.c', line 862

static VALUE r_mpfr_truncate_to_i(VALUE self)
{
  MPFR *ptr_self;
  r_mpfr_get_struct(ptr_self, self);
  if (mpfr_fits_slong_p(ptr_self, GMP_RNDZ)) {
    return LONG2NUM(mpfr_get_si(ptr_self, GMP_RNDZ));
  } else if (mpfr_nan_p(ptr_self)) {
    rb_raise(__mpfr_domain_error__, "Can not convert NaN to an integer");
  } else {
    MPFR *tmp_int;
    char *tmp_str;
    VALUE bignum;
    r_mpfr_temp_alloc_init2(tmp_int, mpfr_get_prec(ptr_self));
    mpfr_trunc(tmp_int, ptr_self);
    if (!mpfr_asprintf(&tmp_str, "%Rf", tmp_int)) {
      rb_raise(rb_eFatal, "Can not allocate a string by mpfr_asprintf.");
    }
    bignum = rb_cstr_to_inum(tmp_str, 10, false);
    r_mpfr_temp_free(tmp_int);
    return bignum;
  }
}

#unordered_p(other) ⇒ Object

Return true if self or other is a NaN, nil otherwise



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# File 'ext/mpfr/ruby_mpfr.c', line 1537

static VALUE r_mpfr_unordered_p(VALUE self, VALUE other)
{
  MPFR *ptr_self, *ptr_other;
  volatile VALUE tmp_other;
  r_mpfr_get_struct(ptr_self, self);
  tmp_other = r_mpfr_new_fr_obj(other);
  r_mpfr_get_struct(ptr_other, tmp_other);
  return (mpfr_unordered_p(ptr_self, ptr_other) != 0 ? Qtrue : Qfalse);
}

#zero_p ⇒ Object Also known as: zero?

Return true if self is 0, nil otherwise.



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# File 'ext/mpfr/ruby_mpfr.c', line 1439

static VALUE r_mpfr_zero_p(VALUE self)
{
  MPFR *ptr_self;
  r_mpfr_get_struct(ptr_self, self);
  return (mpfr_zero_p(ptr_self) != 0 ? Qtrue : Qfalse);
}