I was given some code in which some of the parameters are pointers, and then the po开发者_运维问答inters are dereferenced
Many funct开发者_运维问答ions in c take pointer to constant strings/chars as parameters eg void foo(const char *ptr) .However I wish to change the string pointed by it (ptr).how to do it in cYou can j
the question is simpl开发者_JAVA百科e... is there any difference in using this->yourvariable or yourvariable directly for some reason?
In the 开发者_开发技巧following code, what is the benefit of using (!!p) instead of (p != NULL)?
I have a program that looks like the following: double[4][4] startMatrix; double[4][4] inverseMatrix; initialize(startMatrix) //this puts the information I want in startMatrix
What is the size of virtual pointer(VPTR) for a virtual table in C++? Also this is not a homework question...just a question that cam开发者_JS百科e to my mind while I was reading a C++ book.An excelle
Hey all, here\'s the deal... I\'ve got a UIImage that is being loaded in the background via an NSURLConnection within a subclassed UIImageView. Until the data finishes downloading, a placeholder 开发
char *str = NULL; str = Operation(argv[1]); cout << Cal(str); Operation function return a pointer, but I really don\'t know why str in Cal is null.
//In header file: class definition: class myString { public: myString(void); myString(const char *str); myString(const myString &); //copy constructor
I have the following definition. far in开发者_如何学编程t* near IntegerPointer; Does this mean, a pointer placed in \'near\' memory pointing to a integer placed in far memory area.
加载中,请稍侯......