Questions tagged [pointers]
The pointers tag has no usage guidance.
6
questions
2
votes
2answers
357 views
Pointer Concepts
I am problem set 6 and very confused by the use of pointers. Please tell me the difference of these things first?
What is the difference between char word[length] and char *word = malloc(sizeof(char) ...
1
vote
2answers
2k views
Checking the base address of pointer string
#include <stdio.h>
#include <string.h>
int main(void)
{
char *a="World";
char *b;
printf("a=%p\n",&a); // Base address of a
b=a; // Base address of a ...
7
votes
2answers
763 views
How can char* contain a collection of characters instead of a memory address?
I'm a little confused as to how C treats int* differently from char*. For example, in section, we see things like:
int x = 5;
int* ptr_x = &x;
So, here, ptr_x points to the address in memory of ...
0
votes
1answer
360 views
Pointer passed as argument, then suddenly goes null
In the main method I declare a character pointer pCharacter. I pass this variable to the setCharacter method and assign it an address and a variable gets assigned to that address.
From what I ...
0
votes
1answer
46 views
CS50 Pset4 Logic Problem
I am 3 days into PSET 4 Recover.
In PSET 4 we are supposed to create a program which inputs a memory card and scans through that memory card for the signatures of lost JPEG files. Once the header of a ...
0
votes
2answers
445 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 ...