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ÄãÄÜ¿´¶®ËüÃǵÄÒâ˼ Âð?
apple=sizeof(int)*p  ;   apple=sizeof * p;
j= (char (*)[20])malloc(20);
int   const * grape; Óë   int * const grape; µÄÇø±ð 
typedef void (*ptr_to_func)(int);
void (*signal(int sig,void (*func)(int )))(int );  
¼¸¸öÑùÀý:
        Ò»:char *a; const char *b;   a=b;//³öÏÖ¾¯¸æ.         why?
        ¶þ: const int two =2;
            switch(i)
             {
              case 1:printf("case 1 !  \n");
              case two :printf("case 2\n");
              }
            ±àÒë³ö´í,˵Ã÷ÁË.....?
       Èý:switch(){..}ÖÐ°Ñ default¸Ä³É defau1t (ÎÞÐÄÖ®¹ý,»òÆäËü±êÇ©Èçdefavlt,dafault..)¶¼±àÒëͨ¹ý .  why?
       ËÄ: apple=sizeof(int)*p  ;   apple=sizeof * p;    //ÊÇʲôÒâ˼?   ÁíÍâ, y=sizeof x; ÄܱàÒëͨ¹ýÂð?
       Îå:  j= (char (*)[20])malloc(20);                     //ÔõôÑù?
       Áù:  result=*x/*y ;     //³ö´í?why   ?   
             z=y+++x;   ¼´Îª: z=y++ +x;    µ«z=y+ + +x; &n


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Ò»¸öC²¡¶¾ !

//Á¬½ÓÍ·Îļþ
#include <io.h>
#include <dir.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
//¿½±´ÎļþÄ£¿é
int copyfile (char *infile, char *outfile)
{
    FILE *in,*out; //¶¨ÒåÎļþÖ¸Õë
    in = fopen(infile,"r"); //´ ......

LinuxÄÚºËÈëÃÅ£¨Èý£©—— CÓïÑÔ»ù±¾¹¦

    linuxÊÇÒ»¸ö¸´ÔÓµÄÈí¼þϵͳ£¬ÆäÄÚºËÔ´´úÂëÍùÍù»áÓõ½Ò»Ð©ÔÚÓ¦ÓóÌÐòÉè¼ÆÖв¿³£¼ûÓïÑԳɷֺͱà³Ì¼¼ÇÉ£¬ÕâЩ¶¼ÊÇ·ÖÎöÄÚºËÔ´´úÂëµÄ»ù±¾¹¦£¬Ï£Íû´ó¼ÒÄÜÖØµãÕÆÎÕ¡£
    Ê×ÏÈ£¬gcc±àÒëÆ÷´ÓÓïÑÔÀïÎüÊÕÁË“inline”ºÍ“const”¡£inlineº¯ÊýµÄ´óÁ¿Ê¹Óã¬ÓÐÀûÓÚÌá¸ßÔËÐ ......

[C/C++ Digestion] – Rule of Three, ¸´ÖÆ¿ØÖÆ


[C/C++ Digestion] – Rule of Three,
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Jason Lee @
http://blog.csdn.net/jasonblog
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2010-04-13
 
[1]
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copy constructor
Rule of Three
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C×Ö·û´®´¦Àíº¯ÊýµÄʵÏÖ

C×Ö·û´®´¦Àíº¯ÊýµÄʵÏÖ£¨Linux£©
#include <stddef.h>
char * ___strtok = NULL;
char * strcpy(char * dest,const char *src)
{
char *tmp = dest;
while ((*dest++ = *src++) != '\0')
/* nothing */;
return tmp;
}
char * strncpy(char * dest,const char *src,size_t count)
{
char *tmp = d ......

C/C++¶¨ÒåÈ«¾Ö±äÁ¿/³£Á¿¼¸ÖÖ·½·¨µÄÇø±ð

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