Ejemplos de json_object_get_float en C++ (Cpp)

Ejemplo n.º 1

/**
 * \fn double json_object_get_float_with_default (JsonObject *object, \
 *   const char *prop, double default_value, int *error_code)
 * \brief Function to get a floating point number of a JSON object property with
 *   a default value.
 * \param object
 * \brief JSON object.
 * \param prop
 * \brief JSON property.
 * \param default_value
 * \brief default value.
 * \param error_code
 * \brief Error code.
 * \return Floating point number value.
 */
double
json_object_get_float_with_default (JsonObject * object, const char *prop,
                                    double default_value, int *error_code)
{
  double x;
  if (json_object_get_member (object, prop))
    x = json_object_get_float (object, prop, error_code);
  else
    {
      x = default_value;
      *error_code = 0;
    }
  return x;
}

Ejemplo n.º 2

/**
 * \fn int variable_open_json (Variable * variable, JsonNode * node, \
 *   unsigned int algorithm, unsigned int nsteps)
 * \brief Function to open the variable file.
 * \param variable
 * \brief Variable struct.
 * \param node
 * \brief XML node.
 * \param algorithm
 * \brief Algorithm type.
 * \param nsteps
 * \brief Number of steps to do the direction search method.
 * \return 1 on success, 0 on error.
 */
int
variable_open_json (Variable * variable, JsonNode * node,
                    unsigned int algorithm, unsigned int nsteps)
{
  JsonObject *object;
  const char *label;
  int error_code;
#if DEBUG_VARIABLE
  fprintf (stderr, "variable_open_json: start\n");
#endif
  object = json_node_get_object (node);
  label = json_object_get_string_member (object, LABEL_NAME);
  if (!label)
    {
      variable_error (variable, gettext ("no name"));
      goto exit_on_error;
    }
  variable->name = g_strdup (label);
  if (json_object_get_member (object, LABEL_MINIMUM))
    {
      variable->rangemin
        = json_object_get_float (object, LABEL_MINIMUM, &error_code);
      if (error_code)
        {
          variable_error (variable, gettext ("bad minimum"));
          goto exit_on_error;
        }
      variable->rangeminabs
        = json_object_get_float_with_default (object, LABEL_ABSOLUTE_MINIMUM,
                                              -G_MAXDOUBLE, &error_code);
      if (error_code)
        {
          variable_error (variable, gettext ("bad absolute minimum"));
          goto exit_on_error;
        }
      if (variable->rangemin < variable->rangeminabs)
        {
          variable_error (variable, gettext ("minimum range not allowed"));
          goto exit_on_error;
        }
    }
  else
    {
      variable_error (variable, gettext ("no minimum range"));
      goto exit_on_error;
    }
  if (json_object_get_member (object, LABEL_MAXIMUM))
    {
      variable->rangemax
        = json_object_get_float (object, LABEL_MAXIMUM, &error_code);
      if (error_code)
        {
          variable_error (variable, gettext ("bad maximum"));
          goto exit_on_error;
        }
      variable->rangemaxabs
        = json_object_get_float_with_default (object, LABEL_ABSOLUTE_MAXIMUM,
                                              G_MAXDOUBLE, &error_code);
      if (error_code)
        {
          variable_error (variable, gettext ("bad absolute maximum"));
          goto exit_on_error;
        }
      if (variable->rangemax > variable->rangemaxabs)
        {
          variable_error (variable, gettext ("maximum range not allowed"));
          goto exit_on_error;
        }
      if (variable->rangemax < variable->rangemin)
        {
          variable_error (variable, gettext ("bad range"));
          goto exit_on_error;
        }
    }
  else
    {
      variable_error (variable, gettext ("no maximum range"));
      goto exit_on_error;
    }
  variable->precision
    = json_object_get_uint_with_default (object, LABEL_PRECISION,
                                         DEFAULT_PRECISION, &error_code);
  if (error_code || variable->precision >= NPRECISIONS)
    {
      variable_error (variable, gettext ("bad precision"));
      goto exit_on_error;
    }
  if (algorithm == ALGORITHM_SWEEP)
    {
      if (json_object_get_member (object, LABEL_NSWEEPS))
        {
          variable->nsweeps
            = json_object_get_uint (object, LABEL_NSWEEPS, &error_code);
          if (error_code || !variable->nsweeps)
            {
              variable_error (variable, gettext ("bad sweeps"));
              goto exit_on_error;
            }
        }
      else
        {
          variable_error (variable, gettext ("no sweeps number"));
          goto exit_on_error;
        }
#if DEBUG_VARIABLE
      fprintf (stderr, "variable_open_json: nsweeps=%u\n", variable->nsweeps);
#endif
    }
  if (algorithm == ALGORITHM_GENETIC)
    {
      // Obtaining bits representing each variable
      if (json_object_get_member (object, LABEL_NBITS))
        {
          variable->nbits
            = json_object_get_uint (object, LABEL_NBITS, &error_code);
          if (error_code || !variable->nbits)
            {
              variable_error (variable, gettext ("invalid bits number"));
              goto exit_on_error;
            }
        }
      else
        {
          variable_error (variable, gettext ("no bits number"));
          goto exit_on_error;
        }
    }
  else if (nsteps)
    {
      variable->step = json_object_get_float (object, LABEL_STEP, &error_code);
      if (error_code || variable->step < 0.)
        {
          variable_error (variable, gettext ("bad step size"));
          goto exit_on_error;
        }
    }

#if DEBUG_VARIABLE
  fprintf (stderr, "variable_open_json: end\n");
#endif
  return 1;
exit_on_error:
  variable_free (variable, INPUT_TYPE_JSON);
#if DEBUG_VARIABLE
  fprintf (stderr, "variable_open_json: end\n");
#endif
  return 0;
}