52 lines
2.8 KiB
C
52 lines
2.8 KiB
C
/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
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│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi│
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╞══════════════════════════════════════════════════════════════════════════════╡
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│ Copyright 2020 Justine Alexandra Roberts Tunney │
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│ │
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│ Permission to use, copy, modify, and/or distribute this software for │
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│ any purpose with or without fee is hereby granted, provided that the │
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│ above copyright notice and this permission notice appear in all copies. │
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│ │
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│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL │
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│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED │
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│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE │
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│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL │
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│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR │
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│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER │
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│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
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│ PERFORMANCE OF THIS SOFTWARE. │
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╚─────────────────────────────────────────────────────────────────────────────*/
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#include "libc/dce.h"
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#include "libc/nexgen32e/crc32.h"
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#include "libc/nexgen32e/x86feature.h"
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#include "libc/str/str.h"
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#include "libc/testlib/testlib.h"
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#define FANATICS "Fanatics"
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static const char hyperion[] =
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FANATICS " have their dreams, wherewith they weave / "
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"A paradise for a sect; the savage too / "
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"From forth the loftiest fashion of his sleep / "
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"...";
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TEST(crc32c, test) {
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EXPECT_EQ(0, crc32c(0, "", 0));
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EXPECT_EQ(crc32c(0, "hello", 5), crc32c(0, "hello", 5));
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EXPECT_EQ(0xe3069283, crc32c(0, "123456789", 9));
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EXPECT_EQ(0x6d6eefba, crc32c(0, hyperion, strlen(hyperion)));
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EXPECT_EQ(0x6d6eefba, crc32c(crc32c(0, FANATICS, strlen(FANATICS)),
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hyperion + strlen(FANATICS),
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strlen(hyperion) - strlen(FANATICS)));
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}
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FIXTURE(crc32c, pure) {
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*(void **)(&crc32c) = (void *)crc32c$pure;
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}
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FIXTURE(crc32c, sse42) {
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if (X86_HAVE(SSE4_2)) {
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*(void **)(&crc32c) = (void *)crc32c$sse42;
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}
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}
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