c - Segmentation fault while taking string from user

Monday 21 January 2019

Answer

Code:

int main()
{
  char *name=NULL;
  int n;
  printf("\nenter the string\n");
  scanf("%s",name);
  n=strlen(name);
  printf("%d",n);
  return 0;

}

I am getting segmentation fault. Whats wrong with the code? I have included stdio.h, stdlib.h, string.h.

Answer

You didn't allocate any memory for pointer to char name.

Example:

char * name = malloc( sizeof( char ) * MAX_STRING_LENGTH ) ;