1 #include <stdio.h> 2 #include <stdlib.h> 3 #include <string.h> 4 5 char *strclone(char *); 6 7 int main (void) { 8 char str[] = "Hello, world!"; 9 char *cpy; 10 11 if(!(cpy = strclone(str))) return 1; 12 13 printf("%s\n", cpy); 14 15 free(cpy); 16 return 0; 17 } 18 19 char *strclone(char *s) 20 { 21 if(!s) return NULL; 22 23 char *c; 24 25 /* +1 for the null character */ 26 if(!(c = (char *)calloc(sizeof(char), (strlen(s) + 1)))) return NULL; 27 28 for(size_t i = 0; *s; s++, i++) c[i] = *s; 29 30 return c; 31 }
