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[/] [scarts/] [trunk/] [toolchain/] [scarts-gcc/] [gcc-4.1.1/] [gcc/] [testsuite/] [g++.dg/] [ext/] [packed4.C] - Blame information for rev 12

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Line No. Rev Author Line
1 12 jlechner
// { dg-do run { target { ! default_packed } } }
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// { dg-options "-w" }
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// Copyright (C) 2003 Free Software Foundation, Inc.
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// Contributed by Nathan Sidwell 15 Jul 2003 
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// Packed fields are unsuitable for direct reference binding.
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struct Unpacked { int i; };
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int ConstRef (int const &p, int const *ptr, int v)
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{
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  if (p != v)
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    return 1;
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  if (&p == ptr)
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    return 2;
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  return 0;
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}
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int ConstRef (Unpacked const &p, Unpacked const *ptr, int v)
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{
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  if (p.i != v)
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    return 1;
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  if (&p == ptr)
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    return 2;
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  return 0;
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}
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int Val (int p, int v)
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{
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  if (p != v)
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    return 1;
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  return 0;
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}
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int Val (Unpacked p, int v)
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{
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  if (p.i != v)
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    return 1;
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  return 0;
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}
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struct  __attribute__ ((packed)) Packed
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{
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  char c;
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  int i;
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  Unpacked u;
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  char t;
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};
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int Foo (Packed &p, int i, int ui)
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{
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  int r;
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  if ((r = Val (p.i, i)))
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    return r;
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  if ((r = Val (p.u.i, ui)))
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    return r + 2;
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  if ((r = Val (p.u, ui)))
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    return r + 4;
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  if ((r = ConstRef (p.i, &p.i, i)))
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    return r + 6;
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  return 0;
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}
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int main ()
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{
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  Packed p;
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  p.c = 0x12;
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  p.i = 0x3456789a;
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  p.u.i = 0xbcdef00f;
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  p.t = 0xed;
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  return Foo (p, 0x3456789a, 0xbcdef00f);
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}

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