StackOverflow2013

Note that there are some explanatory texts on larger screens.

plurals

PO
primarykey
Id
10183605
data
AcceptedAnswerId
0
AnswerCount
0
ClosedDate
CommentCount
2
CommunityOwnedDate
CreationDate
2012-04-17T00:40:43.137
FavoriteCount
0
LastActivityDate
2012-04-17T01:05:09.320
LastEditDate
2012-04-17T01:05:09.320
LastEditorUserId
129570
OwnerUserId
129570
ParentId
10183581
PostTypeId
2
Score
8
ViewCount
0
LastEditorDisplayName
text
Body
As always, <a href="http://cdecl.org" rel="noreferrer">http://cdecl.org</a> is your friend: <ul> <li><a href="http://cdecl.ridiculousfish.com/?q=char+%2a+%28%2aarr%29%5B%5D" rel="noreferrer"><code>char * (*arr)[]</code></a> - "declare arr as pointer to array of pointer to char"</li> <li><a href="http://cdecl.ridiculousfish.com/?q=char+%2a%2a%2a+arr" rel="noreferrer"><code>char *** arr</code></a> - "declare arr as pointer to pointer to pointer to char"</li> </ul> These are not the same. For a start, the first is an incomplete type (in order to use a pointer to an array, the compiler needs to know the array size). Your aim isn't entirely clear. I'm guessing that really all you want to do is modify the underlying data in your array of <code>char *</code>. If so, then you can just pass a pointer to the first element: <pre><code>void my_func(char **pointers) { pointers[3] = NULL; // Modify an element in the array } char *array_of_pointers[10]; // The following two lines are equivalent my_func(&array_of_pointers[0]); my_func(array_of_pointers); </code></pre> If you really want to pass a pointer to an array, then something like this would work: <pre><code>void my_func(char *(*ptr)[10]) { (*ptr)[3] = NULL; // Modify an element in the array } char *array_of_pointers[10]; // Note how this is different to either of the calls in the first example my_func(&array_of_pointers); </code></pre> For more info on the important difference between arrays and pointers, see the dedicated chapter of the C FAQ: <a href="http://c-faq.com/aryptr/index.html" rel="noreferrer">http://c-faq.com/aryptr/index.html</a>.
Tags
Title
singulars
PostAcceptedAnswerId
1. This table or related slice is empty.
PostParentId
1. POTriple stars: What's the difference between char* (*arr)[] and char*** arr (in C)?
 singulars
 PostTypePostTypeId
 PTQuestion
PostTypePostTypeId
1. PTAnswer
UserLastEditorUserId
1. USOliver Charlesworth
UserOwnerUserId
1. USOliver Charlesworth
plurals
PostLinksPostIdRelatedPostId
1. This table or related slice is empty.
PostLinksRelatedPostIdPostId
1. This table or related slice is empty.
PostsAcceptedAnswerId
1. POTriple stars: What's the difference between char* (*arr)[] and char*** arr (in C)?
 singulars
 PostTypePostTypeId
 PTQuestion
PostsParentIdCreationDate
1. This table or related slice is empty.
VotesPostIdCreationDate
1. VO
 singulars
 PostPostId
 PO
 UserUserId
 This table or related slice is empty.
 VoteTypeVoteTypeId
 VTUpMod
2. VO
 singulars
 PostPostId
 PO
 UserUserId
 This table or related slice is empty.
 VoteTypeVoteTypeId
 VTUpMod
3. VO
 singulars
 PostPostId
 PO
 UserUserId
 This table or related slice is empty.
 VoteTypeVoteTypeId
 VTUpMod
CommentsPostId
1. CO+1 thanks for sharing the cdecl-site-link.
 singulars
 PostPostId
 PO
 UserUserId
 USTill
2. COThanks for the resources and explanation! This answers what I was looking for.
 singulars
 PostPostId
 PO
 UserUserId
 USuser1337532

Querying!

Guidance

A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.