[Xcode] 23 erreurs sur ZString

/*
 *  ZString.h
 *  ZString 2
 *
 *  Created by Raphaël on 11/05/08.
 *  Copyright 2008 __MyCompanyName__. All rights reserved.
 *
 */

#ifndef ZString
#define ZString

#include <iostream>
using namespace std;

class ZString
{
	public:
		ZString();
		ZString(const char *);
		ZString(const ZString &);

		unsigned int longueur(const char*) const;
		char* copie(const char*);

		~ZString();

	private:
		unsigned int m_longueur;
		char* m_chaine;
};

#endif

/*
 *  ZString.cpp
 *  ZString 2
 *
 *  Created by Raphaël on 11/05/08.
 *  Copyright 2008 __MyCompanyName__. All rights reserved.
 *
 */

#include <iostream>
#include "ZString.h"
using namespace std;

ZString::ZString() : m_chaine(NULL), m_longueur(0) {
}

ZString::ZString(const char chaine[])
{
    m_chaine = copie(chaine);
    m_longueur = longueur(chaine);
}

ZString::ZString(const ZString &chaine) //Constructeur de copie
{
    m_chaine = copie(chaine.m_chaine);
    m_longueur = chaine.m_longueur;
}

unsigned int ZString::longueur(const char chaine[]) {
	size_t i = 0;
	while(chaine[i++] != '\0');
	return i;
}

char* ZString::copie(const char chaine[]) {
	unsigned int i = 0, taille = longueur(chaine);
	char * chaine_copie = new char[taille + 1];

	for (; i < taille; i++)
		chaine_copie[i] = chaine[i];
	chaine_copie[taille + 1] = '\0';
	return chaine_copie;
}



ZString::~ZString() {
	delete[] m_chaine;
	//delete
}