File: array_truncate.c

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#include "likely.h"
#include "safemult.h"
#include "array.h"

/* I'm not sure I understand what this function is good for */
void array_truncate(array* x,uint64 membersize,int64 len) {
  uint64 wanted;
  if (__unlikely(len<0)) return;
  if (__unlikely(!umult64(membersize,len,&wanted))) return;
  if (__unlikely(wanted > x->initialized)) return;
  x->initialized=wanted;
}