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AnswerRe: C question, can't free string from a struct Pin
Leslie Sanford7-Sep-07 15:28
MemberLeslie Sanford7-Sep-07 15:28 
GeneralRe: C question, can't free string from a struct Pin
gizmokaka7-Sep-07 21:51
Membergizmokaka7-Sep-07 21:51 
AnswerRe: C question, can't free string from a struct Pin
John R. Shaw7-Sep-07 17:30
MemberJohn R. Shaw7-Sep-07 17:30 
GeneralRe: C question, can't free string from a struct Pin
gizmokaka7-Sep-07 22:01
Membergizmokaka7-Sep-07 22:01 
GeneralRe: C question, can't free string from a struct Pin
John R. Shaw7-Sep-07 22:34
MemberJohn R. Shaw7-Sep-07 22:34 
GeneralRe: C question, can't free string from a struct Pin
gizmokaka7-Sep-07 23:05
Membergizmokaka7-Sep-07 23:05 
GeneralRe: C question, can't free string from a struct Pin
John R. Shaw7-Sep-07 23:42
MemberJohn R. Shaw7-Sep-07 23:42 
GeneralRe: C question, can't free string from a struct Pin
Leslie Sanford7-Sep-07 22:34
MemberLeslie Sanford7-Sep-07 22:34 
Ok, you've allocated the necessary memory for the struct and its members. But when you try to access the pointers to free the memory they point to, you get an access violation. That tells me that maybe you're losing track of the pointers somewhere along the way.

I'd suggest putting in asserts in your code to make sure the pointers aren't null. Something like:

assert(t != NULL);
assert(t->local_data != NULL);
assert(t->locat_data->colName != NULL);
 
for(i = 0 ; i < width ; i++)
{
    assert(t->local_data->colName[i] != NULL);
     
    free(t->local_data->colName[i]);
}
 
free(t->local_data_colName);


Backtrack from this location to the one in which you originally allocated memory. Liberally place asserts along the way to make sure that the pointers don't get lost. Hopefully this till catch where the problem is originating.
GeneralRe: C question, can't free string from a struct Pin
John R. Shaw7-Sep-07 22:54
MemberJohn R. Shaw7-Sep-07 22:54 
GeneralRe: small sample of where problem ocurres. Pin
gizmokaka7-Sep-07 22:34
Membergizmokaka7-Sep-07 22:34 
GeneralRe: small sample of where problem ocurres. Pin
John R. Shaw7-Sep-07 22:42
MemberJohn R. Shaw7-Sep-07 22:42 
GeneralRe: small sample of where problem ocurres. Pin
markkuk7-Sep-07 23:12
Membermarkkuk7-Sep-07 23:12 
GeneralRe: small sample of where problem ocurres. Pin
gizmokaka7-Sep-07 23:21
Membergizmokaka7-Sep-07 23:21 
GeneralRe: small sample of where problem ocurres. Pin
John R. Shaw7-Sep-07 23:24
MemberJohn R. Shaw7-Sep-07 23:24 
GeneralRe: small sample of where problem ocurres. Pin
Leslie Sanford7-Sep-07 23:42
MemberLeslie Sanford7-Sep-07 23:42 
GeneralRe: Another qestion on the same subject. Pin
gizmokaka8-Sep-07 0:20
Membergizmokaka8-Sep-07 0:20 
GeneralRe: small sample of where problem ocurres. Pin
Russell'7-Sep-07 23:33
MemberRussell'7-Sep-07 23:33 
QuestionClosing a view Pin
bob169727-Sep-07 11:08
Memberbob169727-Sep-07 11:08 
AnswerRe: Closing a view Pin
Russell'7-Sep-07 23:02
MemberRussell'7-Sep-07 23:02 
GeneralRe: Closing a view Pin
bob169728-Sep-07 4:44
Memberbob169728-Sep-07 4:44 
GeneralRe: Closing a view Pin
Mark Salsbery8-Sep-07 7:04
MemberMark Salsbery8-Sep-07 7:04 
GeneralRe: Closing a view Pin
bob169728-Sep-07 9:14
Memberbob169728-Sep-07 9:14 
GeneralRe: Closing a view Pin
Mark Salsbery8-Sep-07 10:51
MemberMark Salsbery8-Sep-07 10:51 
AnswerRe: Closing a view Pin
Nelek12-Sep-07 0:02
protectorNelek12-Sep-07 0:02 
Questiontree graph Pin
Chris Losinger7-Sep-07 10:48
professionalChris Losinger7-Sep-07 10:48 

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