Method: DataView#set_float64

Defined in:
ext/type_array/data_view.c

#set_float64(2, 77.643) ⇒ nil

Sets a float64 value at a given offset, using the provided endianness.

Examples

buf = ArrayBuffer.new(100)    =>  ArrayBuffer
view = DataView.new(buf)      =>  DataView
view.set_float64(2, 77.643)   =>  nil

Returns:

  • (nil) 


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# File 'ext/type_array/data_view.c', line 489

static VALUE rb_data_view_set_float64(int argc, VALUE *argv, VALUE obj)
{
    double val;
    DataViewAset(obj);
    switch (TYPE(item)) {
      case T_FIXNUM:
          val = (double)FIX2LONG(item);
          break;
      case T_BIGNUM:
          val = rb_big2dbl(item);
          break;
      case T_FLOAT:
          val = RFLOAT_VALUE(item);
          break;
      default:
          rb_raise(rb_eTypeError, "Type arrays only support Fixnum, Bignum and Float instances");
    }
    rb_type_array_set_float64(buf->buf, index, val, little_endian);
    return Qnil;
}