Error in contruction of a string

[chaka]

hello everyone,
Im a beginner and developping an application in c++. I have this part in my code:

class CSmtp
{
public:
	CSmtp();
	virtual ~CSmtp();
	void AddRecipient(const char *email, const char *name=NULL);
	void AddBCCRecipient(const char *email, const char *name=NULL);
	void AddCCRecipient(const char *email, const char *name=NULL);
	void AddAttachment(const char *path);
	void AddMsgLine(const char* text);
	void DelRecipients(void);
	void DelBCCRecipients(void);
	void DelCCRecipients(void);
	void DelAttachments(void);
	void DelMsgLines(void);
	void DelMsgLine(unsigned int line);
	void ModMsgLine(unsigned int line,const char* text);
	unsigned int GetBCCRecipientCount() const;
	unsigned int GetCCRecipientCount() const;
	unsigned int GetRecipientCount() const;
	const char* GetLocalHostIP() const;
	const char* GetLocalHostName() const;
	const char* GetMsgLineText(unsigned int line) const;
	unsigned int GetMsgLines(void) const;
	const char* GetReplyTo() const;
	const char* GetMailFrom() const;
	const char* GetSenderName() const;
	const char* GetSubject() const;
	const char* GetXMailer() const;
	CSmptXPriority GetXPriority() const;
	void Send();
	void SetSubject(const char*);
	void SetSenderName(const char*);
	void SetSenderMail(const char*);
	void SetReplyTo(const char*);
	void SetXMailer(const char*);
	void SetLogin(const char*);
	void SetPassword(const char*);
	void SetXPriority(CSmptXPriority);
	void SetSMTPServer(const char* server,const unsigned short port=0);

private:
	std::string m_sLocalHostName;
	std::string m_sMailFrom;
	std::string m_sNameFrom;
	std::string m_sSubject;
	std::string m_sXMailer;
	std::string m_sReplyTo;
	std::string m_sIPAddr;
	std::string m_sLogin;
	std::string m_sPassword;
	std::string m_sSMTPSrvName;
	unsigned short m_iSMTPSrvPort;
	CSmptXPriority m_iXPriority;
	char *SendBuf;
	char *RecvBuf;

	SOCKET hSocket;

	struct Recipient
	{
		std::string Name;
		std::string Mail;
	};

	std::vector<Recipient> Recipients;
	std::vector<Recipient> CCRecipients;
	std::vector<Recipient> BCCRecipients;
	std::vector<std::string> Attachments;
	std::vector<std::string> MsgBody;

	void ReceiveData();
	void SendData();
	void FormatHeader(char*);
	int SmtpXYZdigits();
	SOCKET ConnectRemoteServer(const char* server, const unsigned short port=0);

};

the error when compiling is:
\CSmtp.h|151|error: field `m_sLocalHostName' has incomplete type|

Does somebody have an idea about it??
thanks in advance

[Galik]

Try:

#include <string>