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63 lines
1.3 KiB
C
63 lines
1.3 KiB
C
/* This testcase is part of GDB, the GNU debugger.
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Copyright (C) 2018-2020 Free Software Foundation, Inc.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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enum cons_type
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{
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type_atom = 0,
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type_cons = 1
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};
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struct atom
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{
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int ival;
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};
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struct cons
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{
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enum cons_type type;
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union
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{
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struct atom atom;
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struct cons *slots[2];
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};
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};
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#define nil ((struct cons*)0);
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int
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main ()
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{
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struct cons c1, c2, c3, c4;
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c1.type = type_cons;
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c1.slots[0] = &c4;
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c1.slots[1] = &c2;
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c2.type = type_cons;
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c2.slots[0] = nil;
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c2.slots[1] = &c3;
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c3.type = type_cons;
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c3.slots[0] = nil;
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c3.slots[1] = nil;
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c4.type = type_atom;
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c4.atom.ival = 13;
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return 0; /* next line */
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}
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