10 More Discussions You Might Find Interesting
1. Programming
I am struggling with the pointer to 2D-array (cf: 2D array of pointers). Can anybody help me elaborate how the pointer x moves in the memory to access the individual of y, especially the high lighted lines?
I have talked to one of the curators of the forum, but I am still not quite clear.
Here... (1 Reply)
Discussion started by: yifangt
1 Replies
2. Programming
hi there fellos
could someone teach me how to convert a character pointer into an integer using c
much love (1 Reply)
Discussion started by: surubi_abada
1 Replies
3. Programming
Hi,
Can anyone tell me how i can declare and allocate dynamically an array of pointers to structured type?? Is declaration something like this:?
struct_name ** array; (1 Reply)
Discussion started by: littleboyblu
1 Replies
4. Programming
Can anyone tell me what the following statements do?
float (*tab);
tab=(float (*)) calloc(MAXCLASS,
(MAXCLASS+1)*sizeof(float)); (3 Replies)
Discussion started by: littleboyblu
3 Replies
5. Programming
If one wants to get a start address of a array or a string or a block of memory via a function, there are at least two methods to achieve it:
(1) one is to pass a pointer-to-pointer parameter, like:
int my_malloc(int size, char **pmem)
{
*pmem=(char *)malloc(size);
if(*pmem==NULL)... (11 Replies)
Discussion started by: aaronwong
11 Replies
6. Programming
what is far pointer in C (1 Reply)
Discussion started by: useless79
1 Replies
7. Programming
Hi i'm new to c programming and i'm trying to change the address of a pointer/variable but i can't seem to get it right,
I have this
char heap;
char *firstFree = heap;
char *allocMem( int size ) {
void *malloc(size_t sizeofint);
/*allocate space for an array with size... (19 Replies)
Discussion started by: Poison Ivy
19 Replies
8. Programming
Hi,
char *s="yamaha";
cout<<s<<endl;
int *p;
int i=10;
p=&i;
cout<<p<<endl;
1) For the 1st "cout" we will get "yamaha" as output. That is we are getting "content of the address" for cout<<s.
2) But for integer "cout<<p" we are getting the "address only".
Please clarify how we are... (2 Replies)
Discussion started by: sweta
2 Replies
9. Programming
void main()
{
int a={1,2,3,4,5,6,7,8,9,10};
int *p=a;
int *q=&a;
cout<<q-p+1<<endl;
}
The output is 10, how?
if we give cout<<q it will print the address, value won't print....
if we give cout<<p it will print the address, value won't print....
p has the base addr; q... (1 Reply)
Discussion started by: sarwan
1 Replies
10. Programming
I have a class with an integer pointer, which I have not initialized to NULL in the constructor. For example:
class myclass
{
private:
char * name;
int *site;
}
myclass:: myclass(....)
: name(NULL)
{
.....
}
other member function “delete “ the variable before... (2 Replies)
Discussion started by: sureshreddi_ps
2 Replies
08-13-2007
...)it will mark 'something' according to the structure you give as paramater to free(), if the memory has already been freed then it will 'access' some invalid memory and will inevitably segfault ...