char是C/C++整型數據中比較古怪的一個,其它的如int/long/short等不指定signed/unsigned時都默認是signed,但char在標準中是unsigned,編譯器可以實現為帶符號的,也...
char用於C或C++中定義字元型變數,只占一個位元組(8位),取值範圍為 -128 ~ +127(-2^7~2^7-1)。C語言中如int、long、short等不指定signed或unsigned時都默認...
unsigned char _crol_(unsigned char val,unsigned char n);unsigned int _irol_(unsigned int val,unsigned char n);unsigned int _lrol_(unsigned int val,...
unsigned int th_ack; //32位確認號 unsigned char th_lenres; //4位首部長度/6位保留字 unsigned char th_flag; //6位標誌位 USHORT th_win; //16位...
unsigned int = unsignedunsigned shortunsigned longunsigned charsigned charchar整型值表示unsigned 型如果定義32位表示值0~ -1signed型如果定義符號位表示值- ~ -...
/*初始化函式*/ void rc4_init(unsigned char*s,unsigned char*key, unsigned long Len) { int i=0,j=0; //char k[256]={0}; unsigned char k[256...
unsigned char destination_mac[6]; //目的MAC 6位元組unsigned char source_mac[6]; //源MAC 6位元組unsigned short type; //後面的協定類型2位元組ARP-0806;IP-...
void *memcpy1(void *desc,const void * src,size_t size) { if((desc == NULL) && (src == NULL)) { return NULL; } unsigned char *desc1 = (...
表示字元型和寬字元型這些整數類型(屬於基本類型),但一般只專用於表示字元。char(和signed char、unsigned char一起)事實上定義了位元組的大小。...
整型有無符號(unsigned)和有符號(signed)兩種類型,在默認情況下聲明的整型變數都是有符號的類型(char有點特別),如果需聲明無符號類型的話就需要在類型前加上...
在Visual C++ 6.0中,原型為size_t strlen(const char *string); ,其中size_t實際上是unsigned int,在VC6.0中可以看到這樣的代碼:typedef unsigned int size_t;...
(unsigned int SendVal); unsigned int Val; unsigned char code tab[]={0xfe,0xfd,0xfb,0xf7,0xef,0xdf,0xbf,0x7f}; unsigned char code digittab[18...
#include <string.h> #include <memcopy.h> #undef strcmp int strcmp(p1,p2) { const char *p1; const char *p2; register const unsignedchar *s1=(...
//32位確認號 unsignedcharHaderLen:4;//4位首部長度 unsignedcharReserved1:4;//保留16位中的4位 unsignedcharReserved2:2;//保留16位中的2位 unsignedchar...
unsigned char *_mbscpy( unsigned char *strDestination, const unsigned char *strSource );常見名稱 要求的頭檔案 兼容方案strcpy <string.h> ANSI, ...
