gdb/testsuite/gdb.cp/impl-this.cc

   1 /* This testcase is part of GDB, the GNU debugger.
   2
   3    Copyright 2013-2022 Free Software Foundation, Inc.
   4
   5    This program is free software; you can redistribute it and/or modify
   6    it under the terms of the GNU General Public License as published by
   7    the Free Software Foundation; either version 3 of the License, or
   8    (at your option) any later version.
   9
  10    This program is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13    GNU General Public License for more details.
  14
  15    You should have received a copy of the GNU General Public License
  16    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
  17
  18 #ifdef DEBUG
  19 #include <stdio.h>
  20 #endif
  21
  22 template <typename T>
  23 class A
  24 {
  25 public:
  26   T i;
  27   T z;
  28   A () : i (1), z (10) {}
  29 };
  30
  31 template <typename T>
  32 class B : public virtual A<T>
  33 {
  34 public:
  35   T i;
  36   T common;
  37   B () : i (2), common (200) {}
  38 };
  39
  40 typedef B<int> Bint;
  41
  42 class C : public virtual A<int>
  43 {
  44 public:
  45   int i;
  46   int c;
  47   int common;
  48   C () : i (3), c (30), common (300) {}
  49 };
  50
  51 class BB : public A<int>
  52 {
  53 public:
  54   int i;
  55   BB () : i (20) {}
  56 };
  57
  58 class CC : public A<int>
  59 {
  60 public:
  61   int i;
  62   CC () : i (30) {}
  63 };
  64
  65 class Ambig : public BB, public CC
  66 {
  67 public:
  68   int i;
  69   Ambig () : i (1000) {}
  70 };
  71
  72 class D : public Bint, public C
  73 {
  74 public:
  75   int i;
  76   int x;
  77   Ambig am;
  78   D () : i (4), x (40) {}
  79
  80 #ifdef DEBUG
  81 #define SUM(X)                                  \
  82   do                                            \
  83     {                                           \
  84       sum += (X);                               \
  85       printf ("" #X " = %d\n", (X));            \
  86     }                                           \
  87   while (0)
  88 #else
  89 #define SUM(X) sum += (X)
  90 #endif
  91
  92 int
  93 f (void)
  94   {
  95     int sum = 0;
  96
  97     SUM (i);
  98     SUM (D::i);
  99     SUM (D::B<int>::i);
 100     SUM (B<int>::i);
 101     SUM (D::C::i);
 102     SUM (C::i);
 103     SUM (D::B<int>::A<int>::i);
 104     SUM (B<int>::A<int>::i);
 105     SUM (A<int>::i);
 106     SUM (D::C::A<int>::i);
 107     SUM (C::A<int>::i);
 108     SUM (D::x);
 109     SUM (x);
 110     SUM (D::C::c);
 111     SUM (C::c);
 112     SUM (c);
 113     SUM (D::A<int>::i);
 114     SUM (Bint::i);
 115     //SUM (D::Bint::i);
 116     //SUM (D::Bint::A<int>::i);
 117     SUM (Bint::A<int>::i);
 118     // ambiguous: SUM (common);
 119     SUM (B<int>::common);
 120     SUM (C::common);
 121     SUM (am.i);
 122     // ambiguous: SUM (am.A<int>::i);
 123
 124     return sum;
 125   }
 126 };
 127
 128 int
 129 main (void)
 130 {
 131   Bint b;
 132   D d;
 133
 134   return d.f () + b.i;
 135 }