Mismatch free() / delete / delete [C++] Post: 302984981

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Operating Systems Linux Mismatch free() / delete / delete [C++] Post 302984981 by SA_Palani on Thursday 3rd of November 2016 10:53:37 AM

11-03-2016

Registered User

Mismatch free() / delete / delete [C++]

Dear All,

I got the valgrind report as below [c++]

Code:

Mismatch free() / delete / delete []
at 0x4006895: operator delete(void*) (vg_replace_malloc.c:480)
by 0x8EA6D11: corefunction.

I supect that it is expect me to write free() instead of delete p1.
Given the the code.

I have the structure.

Code:

struct Pack
{
    unsigned int A;
    unsigned int B;
    unsigned int c;
    unsigned int D;    
}
 
 
int corefunction()
{
 
 
    Pack *p1=new Pack;
    I filled the value for the p1 object.
    I called a virtual funcion by passing the p1 like this
    Send((void*)p1); //
 
 
    if(p1)
        delete p1;    // Here is the place where i have the doubt that wheher is it expecting to deallocate with free().
 
 
    return 0;
}    
 
bool Send(void* &get_SendData) 
{  
    sendNextLevel(get_SendData  )
}
     
char* sendNextLevel(void* data)
{
                dataLen = sizeof(PackedSysTime);
 
 
                    Pack* txData = NULL;
                    txData = (Pack*)data;
}

since we have converted void pointer to struct without new operator like c-style casting, does it expecting us to write free while we deallocate the memory

Thank you.

Last edited by Corona688; 11-03-2016 at 12:05 PM..

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LEARN ABOUT HPUX

delete_clearinghouse

delete clearinghouse(1m)												  delete clearinghouse(1m)

NAME

       delete clearinghouse - Deletes the specified clearinghouse from the local server system

SYNOPSIS

       cdscp delete clearinghouse clearinghouse-name

ARGUMENT

       The full name of the clearinghouse.

DESCRIPTION

       The  delete clearinghouse command deletes a clearinghouse from the local server system.	CDS does not permit you to delete a cleared clear-
       inghouse. Before you can delete a cleared clearinghouse, you must recreate it using the create clearinghouse command.

       The delete clearinghouse command automatically deletes all read-only replicas  from a clearinghouse.  CDS does not permit you to  delete  a
       clearinghouse  that  contains a master replica.	See the  DCE Directory Service module of the DCE Administration Guide for more information
       about handling master replicas when deleting a clearinghouse.

   Permissions Required
       You must have write and delete permission to the clearinghouse and administer permission to all directories  that  store  replicas  in  the
       clearinghouse.	The server principal needs delete permission to the associated clearinghouse object entry and administer permission to all
       directories that store replicas in the clearinghouse.

NOTES

       It is recommended that you delete all replicas except the root before issuing this command.

       This command is replaced at Revision 1.1 by the dcecp command and may not be provided in future releases of DCE.

EXAMPLE

       The following command deletes a	clearinghouse  named  /.:/sales/Orion_CH  from	the  local  server  system:  cdscp>  delete  clearinghouse
       /.:/sales/Orion_CH

RELATED INFORMATION

       Commands:  clear clearinghouse(1m), create clearinghouse(1m), list clearinghouse(1m), set cdscp preferred clearinghouse(1m), show clearing-
       house(1m), show cdscp preferred clearinghouse(1m)

       Books: DCE Administration Guide

															  delete clearinghouse(1m)

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