VC++ 6 halts after running a function

[ahmed osama]

hi all

VC++ halt each time i run the following function .....

the function ends without any error but VC++ halt after it finish ..

test ()
{
char* temp=new char [4] ;
temp="123";

__asm
{

pushad;
pushfd;
mov edx,temp;
popfd;
popad;
}

delete [] temp;


}




Any one know whyyyy !!!

 

[mik27]

Re: VC++ 6 halt !!!!!!!!

Your code crash on 'delete' operator!!!

Try this ...

// template declaration for 'strcpy' function
#include <string.h>

test () 
{ 
char* temp=new char [4] ; 


// with ... 
// temp="123"; 
// you REassign to 'temp' the pointer of static ARRAY "123" ... 
// you don't copy the string "123" in te allocated memory!!!
// ... 
// and you lose the previous address of memory allocated with 'new' operator 
// and thus you can't DELETE it ... ;o)

// to copy the string "123" in a 'temp' array allocated with operator 'new' use ...
strcpy(temp,"123");


__asm 
{ 

pushad; 
pushfd; 
mov edx,temp; 
popfd; 
popad; 
} 

delete temp; 


}

or simply ...

test () 
{ 
// if you don't need of dinamic allocation ... this alloc the array on the stack
char temp[]="123"; 

__asm 
{ 

pushad; 
pushfd; 
mov edx,temp; 
popfd; 
popad; 
} 

// and free the memory when it loses the visibility
}

bye ... m!k27

 

[ahmed osama]

Re: VC++ 6 halt !!!!!!!!

u are right

I fixed the code but still VC++ halt when i call this func and sometime even if i didn't call it !!!!!!!!!!!!

i notice when I remove the asm part , it doesn't halt

test()
{ char* temp=new char [3] ;
temp[0]='1';
temp[1]='2';
temp[2]='\0';
__asm
{
pushad;
pushfd;
mov edx,temp;
popfd;
popad;

}
delete [] temp;
}

 

[mik27]

Re: VC++ 6 halt !!!!!!!!

I tryed this code on my VisualC++ 6.0 SP6 (in a Win32 console application) ... and work fine ... it must work ;o)

// have you this include?
#include <malloc.h>

int test() 
{ 
   char* temp=new char [3] ; 
   //check for NULL ptr ... if 'new' don't work ... 
   if(temp==NULL) return -1;
   temp[0]='1'; 
   temp[1]='2'; 
   temp[2]='\0'; 

__asm 
{ 
pushad; 
pushfd; 
mov edx,temp; 
popfd; 
popad; 
} 

   delete temp; 
   return 0;
}


int main (int argc, char **argv)
{

   test();
   return 0;

}

perhaps there is a problem also before the call to 'test' functinon (?) ... send other part of source ... where you call the 'test' function ... if you want

bye ... m!k27

 

[RedAlert]

VC++ 6 halt !!!!!!!!

@ahmed osama

Maybe it is program fault, try updating the software with Service Pack(SP6).