程序設(shè)計(jì)教案24new and delete

REliable,REliable, ligent&Scalable程序設(shè)計(jì)ProgrammingNewand堆

REliable, ligent&Scalable

REliable, ligent&Scalable

REliable, ligent&Scalable

REliable, ligent&Scalable

REliable, ligent&Scalable

REliable, ligent&Scalable

REliable, ligent&Scalable

REliable, ligent&Scalable

REliable, ligent&Scalable

REliable, ligent&Scalablenew和int*ip=new

REliable, ligent&Scalablenew和int*ip=new

REliable, ligent&Scalable new和

REliable, ligent&Scalable如果要?jiǎng)?chuàng)建一個(gè)新的IntSet*isp=new

REliable, ligent&Scalable

REliable, ligent&Scalable

REliable, ligent&Scalabledelete

REliable, ligent&Scalableint*p1=newint(1);int*p2=newint(2);p1=p2;

REliable, ligent&Scalabledelete

REliable, ligent&Scalable

REliable, ligent&Scalable

REliable, ligent&Scalable堆

REliable, ligent&Scalable

REliable, ligent&Scalable

REliable, ligent&Scalable

REliable, ligent&Scalable

REliable, ligent&Scalableint*ia=new delete[]

REliable, ligent&Scalable

REliable, ligent&Scalable

REliable, ligent&Scalable使用動(dòng)態(tài)數(shù)組的classIntSetint*elts; //pointertodynamicarrayintsizeElts;//capacityofarrayintnumElts;//currentoccupancy

REliable, ligent&Scalable使用動(dòng)態(tài)數(shù)組的

REliable, ligent&Scalable使用動(dòng)態(tài)數(shù)組的{

REliable, ligent&Scalable//Allocatethedefault-sizearrayelts=newint[MAXELTS];sizeElts=MAXELTS;numElts=}使用動(dòng)態(tài)數(shù)組的

REliable, ligent&ScalableIntSet::IntSet(intsize);//constructorw/explicit//REQUIRES:size>//EFFECTS:createasetwithsize

REliable, ligent&ScalableclassIntSetint*elts;//pointertodynamicarrayintsizeElts//capacityofarrayintnumElts;//currentoccupancy//EFFECTS:createasetwithMAXELTScapacityIntSet::IntSet(intsize);//constructorw/explicitcapacity//REQUIRES:size>//EFFECTS:createasetwithsize{

REliable, ligent&Scalableelts=newint[size];sizeElts=size;numElts=0;}IntSetis1;//Noarguments---callsthedefaultconstructorIntSetis2(200);//Anintegerargument---callsalternate

REliable, ligent&Scalable

REliable, ligent&Scalable

REliable, ligent&Scalable classIntSet{int*elts;//pointertodynamicarrayintsizeElts;//capacityofarrayintnumElts//currentoccupancy//EFFECTS:createasetwiththespecified 析構(gòu)器

REliable, ligent&Scalablevoid{IntSetis2(300)//Workwithis2insome}析構(gòu)器

REliable, ligent&Scalable析構(gòu)器

REliable, ligent&Scalable ~IntSet();//Destroythis帶有析構(gòu)器的classIntSetint*elts;//pointertodynamicarrayintsizeElts//capacityofarrayintnumElts;//currentoccupancyIntSet(intsize=//EFFECTS:createasetwithsize~IntSet();//Destroythis

REliable, ligent&Scalable帶有析構(gòu)器的{delete[]}

REliable, ligent&Scalable帶有析構(gòu)器的

REliable, ligent&Scalable帶有析構(gòu)器的IntSet*ip=newIntSet(50);//anon-standard//dodeleteip;//Destroysthe

REliable, ligent&Scalable帶有析構(gòu)器的

REliable, ligent&Scalable帶有析構(gòu)器的

REliable, ligent&Scalable

REliable, ligent&Scalable int*pi=newchar*pc=newchar(‘a(chǎn)’);double*pd=newdouble[10];

REliable, ligent&Scalabledelete和delete[]把使用new操作分配的內(nèi)存空間還給自由 deletepi;deletepc;delete[ char*p=delete

REliable, ligent&Scalable voidv;void

f(什么都不返回f不會(huì)返回voidint*pi=newdouble*pd=newdouble[10];void*pv1=pi;void*pv2=

REliable, ligent&Scalable voidf(void*{void*pv2=pv;double*pd=pv;*pv=pv[2]=

錯(cuò)誤：不能將void*轉(zhuǎn)化成錯(cuò)誤：不能對(duì)void*int7不能像double那樣用7.0錯(cuò)誤：不能對(duì)void*錯(cuò)誤int*pi ok//}“stati