问给一个指针赋值的区别

[winner8080]

char *duan(char *strdest)
{
char *address = strDest ;//这个与下面一个赋值到底是什么呢
char *address = &strDest ;
}

[shushengdmj]

怎么会有这种函数

[Generics]

char *duan(char *strdest)
{
char *address = strDest ;//这个与下面一个赋值到底是什么呢
char *address = &strDest ;
}

a. strdest != strDest in C/C++. Be careful the case of the characters.
b. WRONG --> char *address = &strDest; no way to do this. you cannot assign the
address of a (char *) pointer to another (char *) pointer.

[不想低调]

mark

[todototry]

char *duan(char *strdest)
{
char *address = strDest ;//这个与下面一个赋值到底是什么呢
char *address = &strDest ;
}
＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝
char *address = strDest；
address指向strDest所指向的对象，即指向了同一个对象，比如strDest指向对象a，
a的地址是0x01，那么此时address，strDest的值均为0x01
char *address = &strDest;
同上假设，strDest的值为0x01，但它这个指针变量的地址是0x02，
此时address的值为0x02，指向strDest变量，类型为char **

[大爷想要时光机]

char *duan(char *strdest)
{
char *address = strDest ;//这个与下面一个赋值到底是什么呢
char **address = &strDest ;
}

[wb_am]

指针就是要类型匹配，一级二级分清楚。还有一个作用域不能有同名变量

[attababy]

char *duan(char *strdest)
{
char *address = strDest ;//这个与下面一个赋值到底是什么呢
char *address = &strDest ;
}
最好写成:
char* duan(char* strdest)
{
char* address = null;
address = strDest;
address = &strDest; // ???
}

[j765471710]

char *duan(char *strdest)
{
char *address = strDest ;/*这里的address指针和strdest指针指向同一个地址（即传入参数的地址*/
char *address = &strDest ;//这里的address指针指向 strdest
}

[asusa3a]

strdest -> "asdf"
address = strdest -> "asdf"
address -> strdest

[vacantmind]

char *duan(char *strdest)
{
char *address = strDest ;//这个与下面一个赋值到底是什么呢
char *address = &strDest ;
}

1) strDest != strdest
2) &strdest is a point to a point to char, but address is a point to char, cannot conver char ** to char *

[Konker_Roc]

char *duan(char *strdest)
{
char *address = strDest ;//指向和strDest指向相同的对象(指向的地址相同)
char *address = &strDest ; //strDest是函数参数,放在参数空间中,而address指向这个参数空间
}

[bgqy2000]

todototry(来csdn，学会扯淡了...) ( ) 信誉：100 Blog 加为好友 2007-4-9 13:46:45 得分: 0

同意