/C/What happens if i acess a freed variable in c

What happens if i acess a freed variable in c

#include <cs50.h>
#include <stdio.h>

int main(void)
{
  {
    int* px = malloc(sizeof(int));
    *px = 3;
    printf("&px = %i, px = %p\n", *px, px);


    free(px);

    if( px == NULL)
        printf("px is null after free\n");
    else
        printf(" px = %p\n",px);
   }
//     this printf would demonstrate that px is out of scope.
//            printf(" px = %p\n",px);
}

Source: cs50.stackexchange.com

Similar codes

2 votes299 views1 answer
Pygame draw transparent rectangle
C
2 votes258 views2 answers
Increment and decrement operator
C
0 vote272 views1 answer
How many archaeologists are there
C
2 votes280 views1 answer
Ln: failed to create symbolic link 'protoc': File exists
C
0 vote252 views1 answer
Mark rober
C
0 vote258 views3 answers
Script in c
C
0 vote273 views1 answer
Cant update windows
C
0 vote266 views1 answer
Execution time of c program
C
0 vote275 views1 answer
How to change background color in c programming
C
-1 vote291 views2 answers
Mini-max sum hackerrank
C