Hello bearophile,
Is alloca() pure?Given the same input alloca() generally returns different pointers, so it's not a pure function. But the same is true for the ptr field when you allocate an array on the heap. And the memory allocated by alloca() never escapes the function, so it looks more pure than normal heap allocation :-)
As long as you don't pop the stack and do funky stuff with pointers. Vote++ -- ... <IXOYE><
