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Full Discussion: Trouble with C
Top Forums Programming Trouble with C Post 302506793 by zephoid on Tuesday 22nd of March 2011 03:32:57 AM
Old 03-22-2011
Trouble with C

Hey, i am having a problem

First, i know java well and i have used C++ on occasion so i thought i would be able to deal with a class where they program in C. unfortunately i have hit some speed bumps that i am having problems.

Here is my problem:

I have a structure cache_t in the sample program we are supposed to use. In one of my functions i am supposed to use a pointer to an instance of this cache_t struct to perform some operations and return a value.


Code:
struct cache_t
 {
  int nsets;
....
}
cache_access(struct cache_t *cp,....)

How do i get the value of nsets? i have tried &cp.nsets but that just gives me an error:
error: request for member 'nsets' in something not a structure or union

---------- Post updated at 02:32 AM ---------- Previous update was at 01:10 AM ----------

ah, nevermind. As i guessed it was my inexperience with C causing problems. I was looking for cp->nsets.

Thanks anyways for looking.
 

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iv_inotify(3)						    ivykis programmer's manual						     iv_inotify(3)

NAME
IV_INOTIFY_INIT, iv_inotify_register, iv_inotify_unregister, IV_INOTIFY_WATCH_INIT, iv_inotify_watch_register, iv_inotify_watch_unregister - ivykis inotify(7) wrapper SYNOPSIS
#include <iv_inotify.h> struct iv_inotify { }; void IV_INOTIFY_INIT(struct iv_inotify *inotify); int iv_inotify_register(struct iv_inotify *inotify); void iv_inotify_unregister(struct iv_inotify *inotify); struct iv_inotify_watch { struct iv_inotify *inotify; const char *pathname; uint32_t mask; void *cookie; void (*handler)(void *, struct inotify_event *); }; void IV_INOTIFY_WATCH_INIT(struct iv_inotify_watch *watch); int iv_inotify_watch_register(struct iv_inotify_watch *watch); int iv_inotify_watch_unregister(struct iv_inotify_watch *watch); DESCRIPTION
The iv_inotify_register function registers an iv_inotify instance with the iv_inotify(3) module. The inotify parameter is a pointer to the iv_inotify structure to be registered. The iv_inotify_unregister function unregisters an iv_inotify instance from the iv_inotify(3) module. The inotify parameter is a pointer to the iv_inotify structure to be unregistered. The iv_inotify_watch_register function adds a watch to the registered iv_inotify instance specified by the ->inotify member. The iv_inotify_watch_unregister function removes a watch from the iv_inotify instance specified by the ->inotify member. In the iv_inotify_watch structure used in these functions, the ->pathname and ->mask members correspond to the members of struct ino- tify_watch as described in inotify(7). ->handler is the event handler called when this watch triggers. The arguments to this handler function are the pointer stored in the ->cookie member of the iv_inotify_watch structure and a pointer to an inotify_event structure as described in inotify(7). RETURN VALUE
iv_inotify_register and iv_inotify_watch_register return zero on success. On error, -1 is returned, and errno is set appropriately. ERRORS
iv_inotify will return errors returned by inotify_init(3) and inotify_add_watch(3). SEE ALSO
ivykis(3), inotify(7), inotify_init(3), inotify_add_watch(3), inotify_rm_watch(3) ivykis 2009-02-07 iv_inotify(3)
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