附錄一再論指針和數(shù)組

externint*x；－ externint 如無特別說明，右值 數(shù)組下標(biāo)特點數(shù)組：chara[9]＝“abedefgh”；… 指針：char取地址50811805180 / 數(shù)組：chara[9]＝“abedefgh”；…5…5 char chara[]=”abcdefgh”; 據(jù)外部數(shù)組(externalarray)的使用數(shù)組時，數(shù)組可以寫成指針，可以互換 charmy_array[10]char*my_ptr；j=strlen(my_array)；J=strlen(my_ptr)； Inti=2p=a;

p=

p= t Func(char Func(char 與ａ[I,j,k] char或 typedefchar

intapricot[2][3][5]sizeof(apricot)區(qū)域 int charvegetables[][9]

char 嵌“crispyfriedpatatoes”嵌

int/ introw_1[]={1,2,3,4,5,-1};／*一1是行結(jié)束introw_2[]={6,7,-introw_3[]={8,9,10,-1};int{row_1，row_2， 方法模式：my_function(intinta[3][3]{{1,1,{2,2,{3,3,嵌}

{ 方法模式：my_function(intmy_array[][20；方法3（指針傳遞模式模式：my_function(charinta[3][3]{{1,1,{2,2,{3,3,

{//函數(shù)定 **rr嵌}{ ；} Intmain(){intint*p;i=5;p=& /*now*p==i*/*%PisdescribedinFAQVII.28*/printf("i=%d,p=%P, *p=%d\n",i,P,*p);*p=6; /*sameasi=6*/printf("i=%d,p=%P, *p=%d\n",i,P,*P);return0; /*seeFAQXVI.4*/}}inti=int*ip0l=int**ip02=&ip01;int***ip03=&ip02;int****ip04=&dp03;int*****ip05=&ip04; 不要

******ip06= *******ip07=/*Wouldrunforeverifyoudidn'tlimitittoMAX*/#include<stdio.h>struct{ value[3];structcirc_list *next;struct suffixes[]="th",&.suffixes[1],/*Oth*/"st",&.suffixes[2],/*1st*/

#defineMAX20{inti=0;while(i{

*p=1.4.2"nd",&suffixes[3],/*2nd*/"rd",&suffixes[4],/*3rd*/"th",&.suffixes[5],/*4th*/"th",&.suffixes[6],/*5th*/"th",&suffixes[7],/*6th*/"th",&suffixes[8],/*7th*/"th",&suffixes[9],/*8th*/"th",&suffixes[0],/*9th*1.4.2

printf("%ds%\n",i,p-+p=p-}}/ char*strepy(char‘strl，constcharchar*strncpy(char*strl，constchar*str2，size_tn)；void*memcpy(void*addrl，void*addr2，size_tn)；NULLif(/*．．．{}{}

/*．．．*/如果兩個指針向同一個數(shù)組，它們就可以相減，其為如果兩個指針不是指向一個數(shù)組，它們相減就沒有意#include<stdio.h>#include<stddef.h>structstuff{

main({

*p0=*p8=&-array[8];diff=p8-p0;addr.diff=(char*)p8-(char*)structstuffarray[]{{"The"},{"quick"{"brown"},{"fox"{"jumped"},{"over"{"the"},{"lazy"{"dog."},{""嵌入式家

printf("&array[0]=p0=%P\n",(void*)p0);printf("&.array[8]=p8=%P\n",(void*)p8);printf("Thedifferenceofpointersis%ld\n",(long)diff);printf("Thedifferenceofaddressesis%ld\n",(long)printf("p8-8=%P\n",(void*)(p8-8));printf("p0+8=%P(sameasp8)\n",(void*)(p0+8));return0; /*seeFAQXVI.4*/當(dāng)把一個整型值加到一個指針上后，該指針指向的位float*find();{staticfloatinti,m;printf("Enterthenumbertobefound:");printf("thescoreofNO.%dare:\n",m);

{float*pt;}}指向函數(shù)的 void{inta,b,c;

intmax(intx,int{}}定義一個原型為intFun(inta的函數(shù)指針typedefint(*PTRFUN)(intaPara); pFunint(*pFun2)inta intintCallBack(inta){return++a;}voidCaller(PTRFUNcbvoidCaller(int