NetBSD/gnu/usr.bin/groff/libgroff/new.cc

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/* Copyright (C) 1989, 1990, 1991, 1992 Free Software Foundation, Inc.
Written by James Clark (jjc@jclark.com)
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This file is part of groff.
groff is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free
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Software Foundation; either version 2, or (at your option) any later
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version.
groff is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
You should have received a copy of the GNU General Public License along
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with groff; see the file COPYING. If not, write to the Free Software
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Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
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#include <stddef.h>
#include <stdlib.h>
#include <string.h>
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#include "posix.h"
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extern const char *program_name;
static void ewrite(const char *s)
{
write(2, s, strlen(s));
}
void *operator new(size_t size)
{
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// Avoid relying on the behaviour of malloc(0).
if (size == 0)
size++;
#ifdef COOKIE_BUG
char *p = (char *)malloc(unsigned(size + 8));
#else /* not COOKIE_BUG */
char *p = (char *)malloc(unsigned(size));
#endif /* not COOKIE_BUG */
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if (p == 0) {
if (program_name) {
ewrite(program_name);
ewrite(": ");
}
ewrite("out of memory\n");
_exit(-1);
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}
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#ifdef COOKIE_BUG
((unsigned *)p)[1] = 0;
return p + 8;
#else /* not COOKIE_BUG */
return p;
#endif /* not COOKIE_BUG */
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}
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#ifdef COOKIE_BUG
void operator delete(void *p)
{
if (p)
free((void *)((char *)p - 8));
}
#endif /* COOKIE_BUG */