常用各種數(shù)據(jù)校驗方法源代碼

1、常用各種數(shù)據(jù)校驗方法源代碼Borland C+ Builder5.0/定義數(shù)據(jù)類型縮寫形式typedef unsignedcharuchar;無符號字符typedef unsignedshortushort;/無符號短整型typedef unsignedlongulong;/無符號長整型typedef unsignedintuint;無符號整型typedef DynamicArray TByteDynArray; 動態(tài)定義字節(jié)數(shù)組/CRC8位校驗uchar CRC8Valid(const uchar* puchData, int len)uchar crc8 = 0;while (len)cr

2、c8 = crc8 (*puchData+);return crc8;/CRC8位校驗uchar CRC8Valid(const TByteDynArray puchData, int len)uchar crc8 = 0;int index = 0;while (len一)crc8 = crc8 puchDataindex+;return crc8;/和校驗uchar SumValid(const uchar* puchData, int len)uchar crc8 = 0;while (len)crc8 = crc8 + (*puchData+);return crc8;/和校驗ucha

3、r SumValid(const TByteDynArray puchData, int len)uchar crc8 = 0;int index = 0;while (len一)crc8 = crc8 + puchDataindex+;return crc8;/從第index位開始進行校驗uchar SumValid(const uchar* puchData, int index,int len)uchar crc8 = 0;puchData+=index;while (len)crc8 = crc8 + (*puchData+);return crc8;/從第index位開始進行校驗uc

4、har SumValid(const TByteDynArray puchData, int index,int len) uchar crc8 = 0;int indexs = 0;indexs+=index;while (len一)crc8 = crc8 + puchDataindexs+;return crc8;/CRC16 校驗ushort CRC16Valid(const TByteDynArray buffer, int len)ushort crc = 0, tmp;int index = 0;while(len一)tmp = bufferindex+;crc = crc (tm

5、p 8);for (int i = 0; i 8; i+)if (crc & 0 x8000)crc = (crc 1) 0 x1021;elsecrc 8) | (crc 8);return(crc);/CRC16 校驗ushort CRC16Valid(const uchar* buffer, int len) ushort crc = 0, tmp;while(len)tmp = *buffer+;crc = crc (tmp 8);for (int i = 0; i 8; i+)if (crc & 0 x8000)crc = (crc 1) 0 x1021;elsecrc 8) | (

6、crc 8);return(crc);/異或校驗void XORValid(const TByteDynArray buffer, int len)char checksum = 0, cr = 13, ln = 10;char ch1,c1; 校驗位的高四位和第四位for (int i = 0; i 4) & 0 x0F; 取高位數(shù)；ci = checksum & 0 x0F; 取低位數(shù)；if (chi 10) 低于 10 的數(shù)chi = chi + 0;elsechi = (chi - i0 ) + A; /不低于i0的i6進制數(shù)，如：A、B、C、D、E、Fif (ci i0)ci = ci + 0;elseci = (ci - i0 )+ A;XOR_High=chi;XOR_Low =ci;/異或校驗void XORValid(const uchar* buffer, int len)char checksum = 0, cr = i3, In = i0;char chi,ci; 校驗位的高四位和第四位for (int i = 0; i 4) & 0 x0F; 取高位數(shù)；ci = checksum & 0 x0F; 取低位數(shù)；if (chi i0) 低于 i0 的數(shù)chi = chi + 0;elsechi = (chi