ConstantPointersandPointerstoConstants常量指针和指针常量

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1、ConstantPointersandPointerstoConstantsItispossibletodistinguishthreesituationsarisingfromusingconstwithpointersandthethingstowhichtheypoint:Apointertoaconst.Here,what’spointedtocannotbemodified,butwecansetthepointertopointtosomethingelse:constchar*pstring=“Thistextcannotbechanged!”;Co

2、nstantPointers1tMyn#include"stdafx.h"#includeusingnamespaceSystem;usingnamespacestd;intmain(array^args){constintinteger1=20;constint*pInt=&integer1;cout<<"Variableinteger1isaconstantandcannotbechanged.."<

3、;constintinteger2=40;pInt=&integer2;Youcouldn’tstoretheaddressofinteger1inanon-constpointer!!ConstantPointers2tMyncout<<"Butitisstillpossibletosetthepointertopointtosomethingelse!"<

4、."<

5、am>usingnamespaceSystem;usingnamespacestd;intmain(array^args){intinteger1=20;int*constpInt=&integer1;cout<<"PointervariablepIntisconst,soitcanonlyeverpointtovariableinteger1."<

6、oanon-constvariableoftypeint!ConstantPointers5tMyninteger1=30;cout<<"Thevalueofthevariableinteger1isthistime"<<*pInt<<"."<

7、anged.ConstantPointers7tMyn#include"stdafx.h"#includeusingnamespaceSystem;usingnamespacestd;intmain(array^args){constintinteger1=20;constint*constpInt=&integer1;cout<<"PointervariablepIntisaconstantpointertoaconstant,"<