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82 lines
2.6 KiB
C++
82 lines
2.6 KiB
C++
/* -*- mode: C++; c-basic-offset: 4; indent-tabs-mode: nil -*- */
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// vim: ft=cpp:expandtab:ts=8:sw=4:softtabstop=4:
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#ident "$Id$"
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/*======
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This file is part of PerconaFT.
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Copyright (c) 2006, 2015, Percona and/or its affiliates. All rights reserved.
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PerconaFT is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License, version 2,
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as published by the Free Software Foundation.
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PerconaFT 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 PerconaFT. If not, see <http://www.gnu.org/licenses/>.
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----------------------------------------
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PerconaFT is free software: you can redistribute it and/or modify
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it under the terms of the GNU Affero General Public License, version 3,
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as published by the Free Software Foundation.
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PerconaFT 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 Affero General Public License for more details.
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You should have received a copy of the GNU Affero General Public License
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along with PerconaFT. If not, see <http://www.gnu.org/licenses/>.
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======= */
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#ident "Copyright (c) 2006, 2015, Percona and/or its affiliates. All rights reserved."
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#include <test.h>
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#include <stdio.h>
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#include <string.h>
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#include <unistd.h>
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#include <toku_portability.h>
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#include <toku_assert.h>
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#include <toku_os.h>
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static void
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check_snprintf(int i) {
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char buf_before[8];
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char target[5];
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char buf_after[8];
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memset(target, 0xFF, sizeof(target));
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memset(buf_before, 0xFF, sizeof(buf_before));
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memset(buf_after, 0xFF, sizeof(buf_after));
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int64_t n = 1;
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int j;
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for (j = 0; j < i; j++) n *= 10;
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int bytes = snprintf(target, sizeof target, "%" PRId64, n);
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assert(bytes==i+1 ||
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(i+1>=(int)(sizeof target) && bytes>=(int)(sizeof target)));
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if (bytes>=(int)(sizeof target)) {
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//Overflow prevented by snprintf
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assert(target[sizeof target - 1] == '\0');
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assert(strlen(target)==sizeof target-1);
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}
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else {
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assert(target[bytes] == '\0');
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assert(strlen(target)==(size_t)bytes);
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}
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}
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int test_main(int argc __attribute__((__unused__)), char *const argv[] __attribute__((__unused__))) {
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int i;
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for (i = 0; i < 8; i++) {
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check_snprintf(i);
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}
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return 0;
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}
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