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

typedef char* string;
string strInit(char* s) {
	string str = malloc(strlen(s) * sizeof(char));
	strcpy(str, s);
	return str;
}
void strAdd(string* s, char* str_new) {
	*s = realloc(*s, strlen(*s) + strlen(str_new)*sizeof(char));
	strcat(*s, str_new);
}
void strSet(string* s, char* str_new) {
	*s = realloc(*s, strlen(str_new)*sizeof(char));
	strcpy(*s, str_new);
}
void strCopy(string* s1, string* s2) {
	strcpy(*s2, *s1);
}