NULL & int*

[rotis23]

I may be being stupid, but can you guys confirm that the following tests are logically equivalent

char *sring;
....
if(string)
{
   free(string);
}
...
if(string != NULL)
{
   free(string);
}

also, is this approach for an array of integers valid:

int *numbers;

number = malloc(sizeof(int) * 10);
....
if(number)free(number);

I lost a few brain cells over the weekend!!!

[rotis23]

thanks salem.

I usually check if the malloc has suceeded directly after.

>>They are - but that's not what you should be testing.

I usually cleanup at the end of a function.

So really, the answer is to make sure that pointers are initialised to NULL at their declaration.

[rotis23]

makes sense...


..cheers.