diff options
Diffstat (limited to 'src/liblzma/check/crc64_tablegen.c')
-rw-r--r-- | src/liblzma/check/crc64_tablegen.c | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/src/liblzma/check/crc64_tablegen.c b/src/liblzma/check/crc64_tablegen.c new file mode 100644 index 00000000..0f1005f4 --- /dev/null +++ b/src/liblzma/check/crc64_tablegen.c @@ -0,0 +1,56 @@ +/////////////////////////////////////////////////////////////////////////////// +// +/// \file crc64_tablegen.c +/// \brief Generates CRC64 crc64_table.c +/// +/// Compiling: gcc -std=c99 -o crc64_tablegen crc64_tablegen.c crc64_init.c +/// Add -DWORDS_BIGENDIAN to generate big endian table. +// +// This code has been put into the public domain. +// +// This library 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. +// +/////////////////////////////////////////////////////////////////////////////// + +#include <sys/types.h> +#include <inttypes.h> +#include <stdio.h> + + +extern void lzma_crc64_init(void); + +extern uint64_t lzma_crc64_table[4][256]; + + +int +main() +{ + lzma_crc64_init(); + + printf("/* This file has been automatically generated by " + "crc64_tablegen.c. */\n\n" + "#include <inttypes.h>\n\n" + "const uint64_t lzma_crc64_table[4][256] = {\n\t{"); + + for (size_t s = 0; s < 4; ++s) { + for (size_t b = 0; b < 256; ++b) { + if ((b % 2) == 0) + printf("\n\t\t"); + + printf("UINT64_C(0x%016" PRIX64 ")", + lzma_crc64_table[s][b]); + + if (b != 255) + printf(", "); + } + + if (s == 3) + printf("\n\t}\n};\n"); + else + printf("\n\t}, {"); + } + + return 0; +} |