new char

Client:void Qt_boost::p bsendfileclicked (){QString filename = Ui.lefilename->text ();Qbytearray ba = Filename.tolatin1 ();char * pfilename = Ba.data ();Std::ifstream IFS (Pfilename, ios::in|ios::binary|ios::ate);Long size = Ifs.tellg ();Char *p =

  The following class is the my_string class that has reference semantics for copying. this class has shallow copy semantics because pointer assignment replaces copying. the techniques specified strated are common for this type of aggregate. we

1. Conceptually differentiated:A copy constructor is a constructor, and an assignment operator is a category of operator overloading, which is usually a member function of a class2. Differentiate from prototypes:Copy constructor prototype ClassType (

the strcpy_s and strcpy () functions are almost identical. The strcpy function. Just like the Get function, it has no way to guarantee a valid buffer size. So it can only assume that the buffer is large enough to hold the string to be copied. This

Smartcn is a Chinese word segmentation tool provided by lucene. it originated from the ICTCLAS Chinese word segmentation system of the Chinese Emy of Sciences. For more information about ICTCLAS algorithms, see here. The behavior analysis in

Read Catalogue 1. When do I use string? When do you use StringBuilder? The difference between 2.String and StringBuilder Summarize 1. When do I use string? When do you use StringBuilder?Once a string is created, it cannot be

From: http://wxdlut.blog.163.com/blog/static/12877015820099237557679/   The reversal of a one-way linked list is a frequently asked interview question, which is also a very basic question. For example, a linked list is like this: 1-> 2-> 3-> 4-> 5,

The memory occupied by a c/C ++ compiled program is divided into the following parts: 1. stack: automatically allocated by the compiler when the program is running, storing the function parameter values and local variable values. The operation

Basic programming skills for C ++/C programmers.1. Enter the if statement for BOOL, float, and comparison between pointer variables and "zero value. (10 points) Tip: here, the "zero value" can be 0, 0.0, false, or "Null Pointer ". For example, the

First, you must understand what they are composed: Stream: Binary Byte: unsigned integer Character: unicode encoded character String: Multiple Unicode characters   In. net, how can they be converted? Generally, the following rules are

The memory occupied by a C/C ++ compiled program is divided into the following parts: 1. STACK: automatically allocated by the compiler when the program is running, storing the function parameter values and local variable values. The operation

After debugging for half a day, I found the crash caused by the delete operation. I suspect that after applying for memory for a long time, the pointer operation went wrong, causing something to be written to the memory area that was not applied, an

1 Programming Basics1.1 understanding of basic concepts: the difference between const char *, char const *, and char * const is almost the same as that in each C ++ interview.In fact, there are only three declarative methods that are very similar

Source: http://blog.csdn.net/dongfengsun/article/details/1541926 1. The string class is defined as follows: Class String{Public:String (const char * str = NULL); // common ConstructorString (const String & another); // copy the constructor~ String ()

I used to develop some ISAPI programs. I have been searching for the Internet for a long time and have not been fully written. I did not write much in the book in the bookstore. So after two months of exploration, finally, I made some things. For a

Basic Ideas:1. Domain Name supports wildcard resolution, that is, resolve A record *. Domain Name. com to the server IP address, bind it to the server IIS, and the Host header is blank when binding;2. to implement a complete second-level domain,

1. Convert GBK to utf8 String gbktoutf8 (const STD: string & strgbk){String stroututf8 = "";Wchar * str1;Int n = multibytetowidechar (cp_acp, 0, strgbk. c_str (),-1, null, 0 );Str1 = new wchar [N];Multibytetowidechar (cp_acp, 0, strgbk. c_str (),-1,

A concise algorithm: Void reverse (char s []) { For (INT I = 0, j = strlen (S)-1; I Char c = s [I]; S [I] = s [J]; S [J] = C; } } # Exchange other algorithms for A and B: A ^ = B; B ^ =; A ^ = B; Version of one of the five solutions: From:

Memory Allocation Method There are three memory allocation methods: [1] allocated from the static storage area. The program has been allocated when it is compiled, and the program exists throughout the entire runtime. For example, global variables

Requirements: Write a string class, construct, copy, assign values, deconstruct, and so on. Class string { Public: String (const char * STR = NULL); // common Constructor String (const string & other); // copy the constructor ~ String (void); //