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Diffstat (limited to 'src/libs/libgroff/new.cpp')
-rw-r--r-- | src/libs/libgroff/new.cpp | 75 |
1 files changed, 75 insertions, 0 deletions
diff --git a/src/libs/libgroff/new.cpp b/src/libs/libgroff/new.cpp new file mode 100644 index 0000000..2af976c --- /dev/null +++ b/src/libs/libgroff/new.cpp @@ -0,0 +1,75 @@ +/* Copyright (C) 1989-2020 Free Software Foundation, Inc. + Written by James Clark (jjc@jclark.com) + +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 +Software Foundation, either version 3 of the License, or +(at your option) any later 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 with this program. If not, see <http://www.gnu.org/licenses/>. */ + +#include "lib.h" + +#include <stddef.h> +#include <stdlib.h> + +#include "posix.h" +#include "nonposix.h" + +extern "C" const char *program_name; + +static void ewrite(const char *s) +{ + write(2, s, strlen(s)); +} + +void *operator new(size_t size) +{ + // Avoid relying on the behaviour of malloc(0). + if (size == 0) + size++; + char *p = (char *)malloc(unsigned(size)); + if (p == 0) { + if (program_name) { + ewrite(program_name); + ewrite(": "); + } + ewrite("out of memory\n"); + _exit(-1); + } + return p; +} + +void operator delete(void *p) throw() +{ + if (p) + free(p); +} + +void operator delete(void *p, + __attribute__((__unused__)) long unsigned int size) +{ + // It's ugly to duplicate the code from delete(void *) above, but if + // we don't, g++ 6.3 can't figure out we're calling through it to + // free(). + // + // In function 'void operator delete(void*, long unsigned int)': + // warning: deleting 'void*' is undefined [-Wdelete-incomplete] + //delete p; + if (p) + free(p); +} + +// Local Variables: +// fill-column: 72 +// mode: C++ +// End: +// vim: set cindent noexpandtab shiftwidth=2 textwidth=72: |