Member Avatar for asm2hex

Hello,

I have a quick question about malloc. If I create a loop where I'm allocating memory to a pointer character array. To which each array gains the same amount of memory allocation. Do I have to free each one of those arrays with in the variable? Or is it efficient enough to simply free the variable it self?

//my loop example
for(for_loop_conditions)
{
    charArray[i] = (char*)malloc(size);
}
//Do I do this?
for(for_loop_conditions)
{
   free(charArray[i]);
}

//or
free(charArray);

thanks,
-A2H

Edited by asm2hex because: n/a
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  • Latest Post Latest Post by mitrmkar
Member Avatar for mitrmkar 
// First you have to do this
for(for_loop_conditions)
{
   free(charArray[i]);
}

// ... and then also this
free(charArray);

So there has to be a matching free() for each malloc() that you do.

PS. Just to be clear ... if charArray is also dynamically allocated, it needs to be declared as: char ** charArray i.e. not char *charArray .

Edited by mitrmkar because: if
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