cosmopolitan/test/libc/alg/qsort_test.c

39 lines
2.6 KiB
C

/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi│
╞══════════════════════════════════════════════════════════════════════════════╡
│ Copyright 2020 Justine Alexandra Roberts Tunney │
│ │
│ This program 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; version 2 of the License. │
│ │
│ This program 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, write to the Free Software │
│ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA │
│ 02110-1301 USA │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/alg/alg.h"
#include "libc/bits/bits.h"
#include "libc/macros.h"
#include "libc/str/str.h"
#include "libc/testlib/testlib.h"
TEST(qsort, test) {
const int32_t A[][2] = {{4, 'a'}, {65, 'b'}, {2, 'c'}, {-31, 'd'},
{0, 'e'}, {99, 'f'}, {2, 'g'}, {83, 'h'},
{782, 'i'}, {1, 'j'}};
const int32_t B[][2] = {{-31, 'd'}, {0, 'e'}, {1, 'j'}, {2, 'c'},
{2, 'g'}, {4, 'a'}, {65, 'b'}, {83, 'h'},
{99, 'f'}, {782, 'i'}};
int32_t(*M)[2] = tmalloc(sizeof(A));
memcpy(M, B, sizeof(A));
qsort(M, ARRAYLEN(A), sizeof(*M), cmpsl);
EXPECT_EQ(0, memcmp(M, B, sizeof(B)));
tfree(M);
}