Part of the following program code for me, and I don't know will collapse in the test and operation, and for which great god answers,

The sendmail. H file

 # pragma once 
#include  
using namespace std; 
Struct SMailInfo//email information 
{
Char * m_UserName; 
Char * m_UserPassWord; 
STD: : string m_SenderName; 
Char * m_Sender; 
STD: : vector M_vReceiversAddress; 
Char * m_Title; 
Char * m_Body; 
Char * m_IPAddr; 
Char * m_IPName; 
SMailInfo () {memset (this, 0, sizeof (SMailInfo)); } 
~ SMailInfo () 
{} 
}; 

The class CSendMail 
{
Public: 
CSendMail (void) {m_FileBuff=NULL; 
}; 
~ CSendMail (void) {if (NULL!=m_FileBuff) 
Free (m_FileBuff); 
M_FileBuff=NULL; 
}; 

Public: 
Bool SendMail (SMailInfo & amp; SmailInfo) 
{
Memcpy (& amp; M_sMailInfo, & amp; SmailInfo, sizeof (smailInfo)); 
If (m_sMailInfo m_Body==NULL 
. | | m_sMailInfo m_IPAddr==NULL 
. | | m_sMailInfo m_IPName==NULL 
| | m_sMailInfo. M_vReceiversAddress. Empty () 
. | | m_sMailInfo m_Sender==NULL 
. | | m_sMailInfo m_Title==NULL 
. | | m_sMailInfo m_UserName==NULL 
. | | m_sMailInfo m_UserPassWord==NULL) 
{
return false; 
} 
The SOCKET sock; 

return true; 
} 

Protected: 

STD: : vector M_pcFilePath; 
Char m_SendBuff [4096].//send buffer 
Char m_ReceiveBuff [1024]. 
Char * m_FileBuff;//points to the attachment content 
SMailInfo m_sMailInfo; 
}; 

Main. CPP file

 # include 
#include 
#include 
#include  
#include  
# include "sendmail. H" 
using namespace std; 

Void main () 
{
SMailInfo mailInfo; 
MailInfo. M_UserName="[email protected]"; 
MailInfo. M_UserPassWord="123"; 
MailInfo. M_Sender="[email protected]"; 

MailInfo. M_vReceiversAddress. Push_back (STD: : string (" [email protected] ")); 

MailInfo. M_Title="crash file"; 
MailInfo. M_Body="fast loading collapse file"; 
MailInfo. M_IPAddr=""; 
MailInfo. M_IPName="Mail. Appfactory. Cn"; 
//
//
CSendMail smtpMail; 
Bool bsuccess=smtpMail. SendMail (mailInfo); 
return ; 

} 

To debug the crash when positioning to the void xmemory deallocate (pointer _Ptr, size_type)
{//deallocate object at _Ptr, ignore the size
: : operator delete (_Ptr);
}
Position, the vector is the reason??

CodePudding user response:

Your structure inside the pointer is not allocate space? You can use character array or use new or malloc allocation space before use!

CodePudding user response:

SMailInfo () {memset (this, 0, sizeof (SMailInfo)); }

There is a string member variables, cannot use memset function for this object

CodePudding user response:

You are defined in this structure character pointer, but your code don't see where the allocated memory is direct assignment, not AV to blame,