#include <stdio.h> void strcopy(char *s1, char *s2); int main(void) { char str[80]; strcopy(str, "this is a test"); printf(str); return 0; } void strcopy(char *s1, char *s2) { if(*s2) { /* if not at end of s2 */ *s1++ = *s2++; strcopy(s1, s2); } else *s1 = '\0'; /* null terminate the string */ }