Is NULL always false?

Question

Is it safe to assume that NULL always translates to false in C?

void *somePtr = NULL;

if (!somePtr) {
  /* This will always be executed? */
}
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Answer 1

NULL is defined as a constant pointer that is guaranteed to point to a useless/non-existent place in memory. Most implementations of NULL are ((void *)0) but it is not mandatory that this is so.