Mercurial > hg > nginx
view src/core/ngx_crc.h @ 776:5622cdd48e5b
style fix
author | Igor Sysoev <igor@sysoev.ru> |
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date | Fri, 13 Oct 2006 15:09:25 +0000 |
parents | bbd6b0b4a2b1 |
children | 604f9671fae6 |
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/* * Copyright (C) Igor Sysoev */ #ifndef _NGX_CRC_H_INCLUDED_ #define _NGX_CRC_H_INCLUDED_ /* 32-bit crc16 */ static ngx_inline uint32_t ngx_crc(char *data, size_t len) { uint32_t sum; for (sum = 0; len; len--) { /* * gcc 2.95.2 x86 and icc 7.1.006 compile * that operator into the single "rol" opcode, * msvc 6.0sp2 compiles it into four opcodes. */ sum = sum >> 1 | sum << 31; sum += *data++; } return sum; } #endif /* _NGX_CRC_H_INCLUDED_ */