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lib/misc/crc_gen.c
47 строк
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Joe Thornber
build: Don't generate symlinks in include/ dir
14 май 2018, 12:30
14 май 2018, 12:30
7f97c7e
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/* * Copyright (C) 2010 Red Hat, Inc. All rights reserved. * * This file is part of LVM2. * * This copyrighted material is made available to anyone wishing to use, * modify, copy, or redistribute it subject to the terms and conditions * of the GNU Lesser General Public License v.2.1. * * You should have received a copy of the GNU Lesser 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 */ /* * Helper program to generate table included in crc.c. */ #include "lib/misc/lib.h" int main(int argc, char **argv) { uint32_t crc, i, j; printf("\t/* CRC-32 byte lookup table generated by crc_gen.c */\n"); printf("\tstatic const uint32_t crctab[] = {"); for (i = 0; i < 256; i++) { crc = i; for (j = 0; j < 8; j++) { if (crc & 1) crc = 0xedb88320L ^ (crc >> 1); else crc = crc >> 1; } if (i % 8) printf(" "); else printf("\n\t\t"); printf("0x%08.8x,", crc); } printf("\n\t};\n"); return 0; }