mirror of https://git.tukaani.org/xz.git
56 lines
1.2 KiB
C
56 lines
1.2 KiB
C
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///////////////////////////////////////////////////////////////////////////////
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//
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/// \file crc64_tablegen.c
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/// \brief Generates CRC64 crc64_table.c
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///
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/// Compiling: gcc -std=c99 -o crc64_tablegen crc64_tablegen.c crc64_init.c
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/// Add -DWORDS_BIGENDIAN to generate big endian table.
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//
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// This code has been put into the public domain.
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//
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// This library 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.
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//
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///////////////////////////////////////////////////////////////////////////////
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#include <sys/types.h>
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#include <inttypes.h>
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#include <stdio.h>
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extern void lzma_crc64_init(void);
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extern uint64_t lzma_crc64_table[4][256];
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int
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main()
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{
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lzma_crc64_init();
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printf("/* This file has been automatically generated by "
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"crc64_tablegen.c. */\n\n"
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"const uint64_t lzma_crc64_table[4][256] = {\n\t{");
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for (size_t s = 0; s < 4; ++s) {
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for (size_t b = 0; b < 256; ++b) {
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if ((b % 2) == 0)
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printf("\n\t\t");
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printf("UINT64_C(0x%016" PRIX64 ")",
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lzma_crc64_table[s][b]);
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if (b != 255)
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printf(", ");
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}
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if (s == 3)
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printf("\n\t}\n};\n");
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else
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printf("\n\t}, {");
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}
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return 0;
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}
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