Ò׽ؽØÍ¼Èí¼þ¡¢µ¥Îļþ¡¢Ãâ°²×°¡¢´¿ÂÌÉ«¡¢½ö160KB

C×Ö·û´®²Ù×÷º¯ÊýÔ´Âë

 
#ifndef _PPC_BOOT_STRING_H_
#define _PPC_BOOT_STRING_H_
#include <stddef.h>
extern char *strcpy(char *dest, const char *src);
extern char *strncpy(char *dest, const char *src, size_t n);
extern char *strcat(char *dest, const char *src);
extern int strcmp(const char *s1, const char *s2);
extern size_t strlen(const char *s);
extern size_t strnlen(const char *s, size_t count);
extern void *memset(void *s, int c, size_t n);
extern void *memmove(void *dest, const void *src, unsigned long n);
extern void *memcpy(void *dest, const void *src, unsigned long n);
extern int memcmp(const void *s1, const void *s2, size_t n);
#endif    /* _PPC_BOOT_STRING_H_ */
£­£­£­£­£­£­£­£­£­£­£­£­£­£­£­£­£­£­£­£­£­£­£­£­£­£­£­£­£­£­
/*
*  linux/lib/string.c
*
*  Copyright (C) 1991, 1992  Linus Torvalds
*/
/*
* stupid library routines.. The optimized versions should generally be found
* as inline code in <asm-xx/string.h>
*
* These are buggy as well..
*
* * Fri Jun 25 1999, Ingo Oeser <ioe@informatik.tu-chemnitz.de>
* -  Added strsep() which will replace strtok() soon (because strsep() is
*    reentrant and should be faster). Use only strsep() in new code, please.
*
* * Sat Feb 09 2002, Jason Thomas <jason@topic.com.au>,
*                    Matthew Hawkins <matt@mh.dropbear.id.au>
* -  Kissed strtok() goodbye
*/
#include <linux/types.h>
#include <linux/string.h>
#include <linux/ctype.h>
#include <linux/module.h>
#ifndef __HAVE_ARCH_STRNICMP
/**
* strnicmp - Case insensitive, length-limited string comparison
* @s1: One string
* @s2: The other string
* @len: the maximum number of characters to compare
*/
int strnicmp(const char *s1, const char *s2, size_t len)
{
/* Yes, Virginia, it had better be unsigned */
unsigned char c1, c2;
c1 = c2


Ïà¹ØÎĵµ£º

¹ØÓÚcÖÐvolatile¹Ø¼ü×Ö£¨×ªÌù£©

 Ò»¸ö¶¨ÒåΪvolatileµÄ±äÁ¿ÊÇ˵Õâ±äÁ¿¿ÉÄܻᱻÒâÏë²»µ½µØ¸Ä±ä£¬ÕâÑù£¬±àÒëÆ÷¾Í²»»áÈ¥¼ÙÉèÕâ¸ö±äÁ¿µÄÖµÁË¡£¾«È·µØËµ¾ÍÊÇ£¬ÓÅ»¯Æ÷ÔÚÓõ½Õâ¸ö±äÁ¿Ê±±ØÐëÿ´Î¶¼Ð¡ÐĵØÖØÐ¶ÁÈ¡Õâ¸ö±äÁ¿µÄÖµ£¬¶ø²»ÊÇʹÓñ£´æÔڼĴæÆ÷ÀïµÄ±¸·Ý¡£ÏÂÃæÊÇvolatile±äÁ¿µÄ¼¸¸öÀý×Ó£º
    1). ²¢ÐÐÉ豸µÄÓ²¼þ¼Ä´æÆ÷£¨È磺״̬¼Ä´æÆ ......

c vaϵÁкêµÄ»ù±¾Ó÷¨

 vaϵÁкêµÄÓ÷¨µÄÒ»°ã²½Ö裺
 vsptr(char *format, ...)  //ÇмǴ˴¦µÄ¸ñʽ
 {
    va_list argptr;
    va_start(argptr, format); //ʹµÃargptrÖ¸ÏòÒÔformat¿ªÍ·µÄ´æ´¢¿Õ¼ä
    va_arg(argptr, type);  //È¡´«µÝµÄ²ÎÊý
    ......

GNU C library ±Ê¼Ç1

ÄÚÈÝ£ºIntroduction ºÍ Error Reporting
1. glibc ËùʵÏÖÈ«²¿»ò²¿·Ö¹æ·¶ÏµĹ¦ÄÜÓÐ
ISO C: The international standard for the C programming language.
POSIX: The ISO/IEC 9945 (aka IEEE 1003) standards for operating systems.
Berkeley Unix: BSD and SunOS.
SVID: The System V Interface Description.
X ......

C/C++——С±à̸CÓïÑÔº¯ÊýÄÇЩÊÂ(8)

C³ÌÐòÊÇÓÉÒ»×é»òÊDZäÁ¿»òÊǺ¯ÊýµÄÍⲿ¶ÔÏó×é³ÉµÄ¡£ º¯ÊýÊÇÒ»¸ö×ÔÎÒ°üº¬µÄÍê³ÉÒ»¶¨Ïà¹Ø¹¦ÄܵÄÖ´ÐдúÂë¶Î¡£ÏÂÃæÐ¡±àºÍ´ó¼Ò·ÖÏíÏÂCÓïÑÔÖеĺ¯Êý¡£
 
1.       gcvtº¯Êý
 
gcvtº¯ÊýµÄ¹¦ÄÜÊǰѸ¡µãÊýת»»³É×Ö·û´®£¬ÆäÓ÷¨ÊÇ£ºchar *gcvt(double value, int ndigit, char *buf);³ÌÐò ......

C/C++——С±à̸CÓïÑÔº¯ÊýÄÇЩÊÂ(11)

C³ÌÐòÊÇÓÉÒ»×é»òÊDZäÁ¿»òÊǺ¯ÊýµÄÍⲿ¶ÔÏó×é³ÉµÄ¡£ º¯ÊýÊÇÒ»¸ö×ÔÎÒ°üº¬µÄÍê³ÉÒ»¶¨Ïà¹Ø¹¦ÄܵÄÖ´ÐдúÂë¶Î¡£ÏÂÃæÐ¡±àºÍ´ó¼Ò·ÖÏíÏÂCÓïÑÔÖеĺ¯Êý¡£
 
1. kbhitº¯Êý
 
kbhitº¯ÊýÊǼì²éµ±Ç°°´Ïµļü£¬ÆäÓ÷¨Îª£ºint kbhit(void);³ÌÐòÀý×ÓÈçÏ£º
#include <conio.h>
int main(void)
{
   c ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØÍ¼ | ¸ÓICP±¸09004571ºÅ