pike.git/ src/ array.c

2000-12-07

2000-12-07 23:05:44 by Fredrik Noring <noring@nocrew.org>

• cc51e9d8e70931d5c4723c87597c50fde66a1b2a (22 lines) (+20/-2) ^{[ Show | Annotate ]}
  Branch: 7.9

Made reverse_array in-place for refs = 1.

Rev: src/array.c:1.98

23:   #include "stuff.h"   #include "bignum.h"    - RCSID("$Id: array.c,v 1.97 2000/12/01 08:09:43 hubbe Exp $"); + RCSID("$Id: array.c,v 1.98 2000/12/07 23:05:44 noring Exp $");      PMOD_EXPORT struct array empty_array=   {
1867:    INT32 e;    struct array *ret;    -  /* FIXME: Check refs so we might optimize */ +  if(a->refs == 1) +  /* Reverse in-place. */ +  { +  struct svalue *tmp0, *tmp1, swap; +  +  tmp0 = ITEM(a); +  tmp1 = ITEM(a) + a->size; +  for(e = a->size>>1; 0 < e; e--) +  { +  swap = *tmp0; +  *(tmp0++) = *(--tmp1); +  *tmp1 = swap; +  } +  +  add_ref(a); +  return a; +  } +     ret=allocate_array_no_init(a->size,0);    for(e=0;e<a->size;e++)    assign_svalue_no_free(ITEM(ret)+e,ITEM(a)+a->size+~e);