crc32 file

Recently, because a business needs to use the CRC32 algorithm, but the business can not tolerate duplicate values appear, so naturally want to understand the CRC32 algorithm collision probability (or called collision probability).I think this

http://supp.iar.com/Support/?note=64424&from=note+11927BackgroundThe STM32 devices from ST Micro has a built-in hardware CRC32 calculator. (So using CRC32 in a application does not use up code space for the algorithm.)ProblemThe CRC32 algorithm used

Unsigned char appengcrc32 (unsigned char * filename){Unsigned long CRC = 0 xffffffff;Unsigned int I;Unsigned char res = 0;Unsigned char buff [513];Unsigned int realread;File * FP;Unsigned short filesize; Fp = fopen (const char *) filename, "R + ");

classMemcachehash {Private $_node=Array(); Private $_nodedata=Array(); Private $_keynode= 0; Private $_memcache=NULL; //number of virtual nodes per physical server [Note: The more the number of nodes, the better the cache distribution uniformity,

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public class FileToCRC32 {private static uint32[] crc32table = {0x00000000,0x77 073096,0XEE0E612C,0X990951BA, 0X076DC419,0X706AF48F,0XE963A535,0X9E6495A3, 0x0edb8832,0x79dcb8a4,0xe0d5e91e,0x97d2d988, 0x09b64c2b,0x7eb1

Records all operations (DML statements) of the MySQL database that actually make changes, not statements that do not have any data modified, and statements such as Select and show are not recorded.The role of the binary log:1, can complete the

First, the Buffer classJava.nio.Buffer what is this class for? What kind of structure is there?"Core Java" is defined as "A buffer is array of values of the same type". So, we can sense the perceptual:buffer is like an array, storing the same type

Binlog file record format statement, row, rixed three kinds, before 5.7 by default is statement mode, to 5.7 starts by default to row mode.Statement is the statement mode, Binlog record all the statements to make changes to the data, to see Binlog

Encountering krnln. FNR, Com. Run, Shell. FNE, dp1.fne, eapi. FNE, Internet. FNE, RegEx. FNR, spec. FNE, etc.     A netizen said that his computer may be infected with viruses. The problem is that he rename the folder in the USB flash drive and then