options.c

[John Darrington]

In src/output/options.c  we have:

/* Creates and returns a new struct driver_option for output driver DRIVER
   (which is needed only to the extent that its name will be used in error
   messages).  The option named NAME is extracted from OPTIONS.  DEFAULT_VALUE
   is the default value of the option, used if the given option was not
   supplied or was invalid. */
struct driver_option *
driver_option_get (struct output_driver *driver, struct string_map *options,
                   const char *name, const char *default_value)
{
  struct driver_option *option;
  char *value;

  value = string_map_find_and_delete (options, name);
  option = driver_option_create (output_driver_get_name (driver), name, value,
                                 default_value);
  free (value);
  return option;
}


Why does it use string_map_find_and_delete ? Why not simply string_map_find?
Why does it need to delete the item from the string map?


J'




-- 
PGP Public key ID: 1024D/2DE827B3 
fingerprint = 8797 A26D 0854 2EAB 0285  A290 8A67 719C 2DE8 27B3
See http://keys.gnupg.net or any PGP keyserver for public key.

signature.asc
Description: Digital signature