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Programming
How to Declare an array of function pointers?
Post 303018206 by Corona688 on Thursday 31st of May 2018 12:13:03 PM
05-31-2018
Quote:
You can do it with static member functions because they don't even have access to a class' members. If that doesn't matter, if they really don't use the class, you can make them static and get pointers to them.
Code:
class myclass {
public:
static int myfunction(int that) {
return(42);
}
};
int (*fn)(int) = myclass::myfunction;Last edited by Corona688; 05-31-2018 at 01:18 PM..
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LEARN ABOUT OSF1
class_add
class_add(3) Library Functions Manual class_add(3) NAME
class_add - Add a member to an existing class LIBRARY
Standard C Library (libclass.a) SYNOPSIS
#include <apar_types.h> #include <sys/class.h> class_add(class_apar_handle_t, *class_name, type, member, force); class_apar_handle_t handle class_name char type int member int force int PARAMETERS
The partition descriptor returned by class_open(). Name of the class to which the new member is to be added. Member type as defined in <sys/class.h>. For example: CL_TYPE_UID. Identifier representing type. TRUE/FALSE - If a member is found in another class, force the member to be moved to class_name DESCRIPTION
Add a member to an existing class. If the member is found in another class, the member will be moved to the new class if force is TRUE. Note that the calling process must have root access privileges. RETURN VALUES
Operation successfully completed. An invalid partition handle was specified. Not super user. Permission denied. The class_name is not an ASCII string. The class_name does not exist. No space is available in class_name. A member of type type is already in class_name. A member of type type is in another class. This value is returned only if force is FALSE. Operations on the default class are not sup- ported. SEE ALSO
Functions:class_init(3), class_change(3), class_create(3), class_close(3), class_configure(3), class_get_config_stats(3), class_close(3), class_delete(3), class_destroy(3), class_disable(3), class_enable(3), class_save_database(3), class_restore_database(3), class_load_data- base(3), class_change_name(3), class_database_file_exists(3), class_database_name(3), class_database_modified(3), class_get_classes(3), class_get_class_members(3), Commands:class_admin(8), runclass(1), class_scheduling(4) Other: The System Administration guide. delim off class_add(3)