string-copy.c - Hele programmet.

Lektion 7 - slide 21 : 26 Program 1

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


/* Copy s to a fresh allocated string and return it */
char *string_copy(const char *s){
  
 static char *new_str;

 new_str = (char *)malloc(strlen(s)+1);
 strcpy(new_str,s);

 return new_str;
}


int main(void) {

  char s[] = "Aalborg University", *t;
  t = string_copy(s);
  strcpy(s,"---");      /* destroy s */

  printf("The original is: %s.\nThe copy is: %s\n", s, t);
  
  return 0;
}