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1 #include "crc32i.h"
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2 #include <stdio.h>
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3
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4 /* Test implementations and make sure they agree with each other */
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5 int crc32_test(void)
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6 {
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7 /* Force alignment :) */
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8 static const __attribute__((__aligned__(CRC32_MAX_ALIGNMENT))) unsigned char testdata[1024] =
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9 #define DOUBLE(x) x x
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10 DOUBLE(DOUBLE(DOUBLE(DOUBLE(DOUBLE(DOUBLE(DOUBLE("\x01\x02\x04\x08\x10\x20\x40\x80")))))))
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11 #undef DOUBLE
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12 ;
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13 static const crc32_r_spec crc[] = {
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14 crc32c_r,
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15 crc32qw_r,
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16 crc32x86_vpclmulqdq_r
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17 };
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18 size_t i;
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19
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20 uint32_t crcc = crc32(testdata, sizeof(testdata));
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21
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22 for (i = 0; i < ARRAY_SIZE(crc); i++) {
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23 uint32_t thiscrc = ~crc[i](0xFFFFFFFF, testdata, sizeof(testdata));
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24
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25 if (thiscrc != crcc) {
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26 fprintf(stderr, "%zu, mismatch: %08x, %08x\n", i, crcc, thiscrc);
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27 return -1;
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28 }
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29 }
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30
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31 return 0;
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32 }
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33
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34 int main(void)
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35 {
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36 return -crc32_test();
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37 }
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