All Questions
12 questions
3
votes
2
answers
58
views
Why can you say the name of an array is a pointer to the first element of the array in C?
I have tried to understand why you can say the name of an array is a pointer to its first element in C. Could you please tell me if my understanding below is correct?
Both the name of an array and the ...
- 69
0
votes
1
answer
27
views
Why am I able to insert an element into a hash tree via Main() but not via a function call?
I'm fairly certain this has something to do with pointers and the function using copies instead, but I'm not sure how...because I've inserted the pointer as a parameter for create();
#include <...
0
votes
1
answer
70
views
Declaring an array of structure pointers
How to declare an array of structure pointers? I need to create a collection of linked list. Is it same as declaring ordinary arrays? If
0
votes
1
answer
2k
views
Pset4 - Recover (usage of sprintf)
When I am working on Pset4 - Recover, I realize I do not understand the concept of array and pointer. Although I finally worked it out, I would be very grateful if you guys can explain the following:
...
- 3
0
votes
1
answer
108
views
difference between string, pointer, array and int
while it hasn't been something which really stopped me from learning, there is something which has been keeping me awake for the last few days...
What is the difference between:
#define x 5
int i; ...
- 58
0
votes
1
answer
247
views
I've use array pointer method in pset2 (initials.c) but it return "Segmentation Fault (Core Dump) Why?
I'm working on pset2 using array pointer method, but unfortunately, the program return "Segmentation Fault (Core Dump)" I've post a picture of my code below.Can I use this method? or I have to use if ...
- 101
0
votes
0
answers
70
views
Initializing a variable in a struct, then in a function
It won't allow me to initialize the array to NULL in the struct in the header file:
typedef struct frog
{
bool is_frog;
struct frog* french_chef[10]; // eg = {NULL};
} frog;
which I get, but ...
- 101
0
votes
1
answer
6k
views
How to iterate through an array using pointers
I managed to "solve this issue", but I don't know why I get the problem I get.
Right after the last line I also got a segmentation fault, which I failed to include in the above screenshot.
My ...
- 21
24
votes
2
answers
80k
views
Difference between char and char* in c
suppose we declare two variable
char s[]= "hello"
char* p = "hello".
what is the difference between these two?
- 343
0
votes
2
answers
636
views
different between pointers and pointer to arrays?
difference between --
char a[SIZE]; //Char array of size (SIZE)
char *a; //character pointer. Points towards a char (a).
char *a[SIZE]; // Array of pointer characters.
char *(a[SIZE]); // Pointer ...
- 206
0
votes
1
answer
151
views
unable to use a 2d array via function
#include <stdio.h>
void array(int *ar,int row,int col);
int main(void)
{
int a[][2] = {
{1,2},
{3,4},
{5,6}
};
...
- 206
0
votes
1
answer
923
views
Can I create and initialize arrays of other types the same way I can create and initialize char arrays?
I'm a little confused about arrays and pointers and what is correct. I know that you can use
char* str = "foo";
which is a pointer to the first block of memory for the string foo. But let's say ...
user2137