C Brain Teasers: Exercise Your Mind/

...

/

Discussion: Whoa! Hold on There

Discussion: Whoa! Hold on There

Execute the code to understand the output and gain insights into buffer overflow.

We'll cover the following...

Run the code

Now, it's time to execute the code and observe the output.

#include <stdio.h>
#include <stdlib.h>
#include <time.h>

int main()
{
  int array[5];
  int x;
  srand( (unsigned)time(NULL) );
  for( x=0; x<12; x++ ) {
    array[x] = rand() % 100;
    printf(" %d", array[x]);
  }
  putchar('\n');
  
  return(0);
}
C code for the given puzzle

Understanding the output

The code fetches random numbers, packing them into an array. Due to overflow, however, a segmentation fault or similar error is generated. Different compilers create programs that may display erroneous data, such as very large values. Some programs may run without any noticeable issue.

Does C automatically check array bounds?

Of all the major programming languages used ...