C++

Recently see the C language project in the macro definition used Do...while (0), feel is a knowledge point, special to summarize.First look at this sentence:do{...} while (0) is the only constructor in C that allows you to define a macro that always

The reference website is as follows:? http://blog.csdn.net/yusongwhu/article/details/7577461Http://www.cnblogs.com/lhbssc/archive/2012/02/08/2342853.htmlThe specific contents are as follows:(1) article?Today, we are looking at the problem of how to

Content from C + + primer 5thLarge programs often use several independently developed libraries, which in turn define a large number of global names, inevitably with name collisions.Namespaces: Provides a more manageable mechanism for preventing

C language Evolution to C + + process, is a camouflage of the development process.1, BOOL type variable: 1 byte variable (same size as char), default assignment is True (1), False (0)2, reference variable: The new application of the variable to hang

1. Memory leaks:In computer science, a memory leak is a situation in which a program fails to release memory that is no longer in use because of negligence or error.A memory leak does not mean that there is physical disappearance, but that after the

1. Note When the function returns a string: String Fun () {return string ("Szn");} Const char* PSTR = Fun (). C_STR ();//The code above, pStr = "" Instead of "szn", Reason: The returned string variable was refactored//2. Regular expression component:

When we debug code, often need to use code to run time to measure the efficiency of the Code, see the online has a lot about the timing of the article, when you learn to do some sorting it.1. Time () functionIn the header file Time.h, time () gets

Today I see a question about the order of the printf () function, first of all, an example:#include int main () {printf ("%d---%d---%d", printf ("AB"), printf ("C"), printf ("Eee"));The output is:This means that the printf () function is calculated

In C languages, you can often use sscanf and strtok to split a delimited delimiter. The defect of the SSCANF function is for 1;2;3;;; 4 The case where there is no value in the middle of the divider is not well handled (SSCANF (str, "%*[^;]; %[^;] ",

WebService is one of the most popular cross-system, cross-language, cross-platform data interaction technologies in the past. In recent work calling Java as a service-side open Webser,I made the interface call by VS205 the way the WebService tool

js in escape corresponding to the C # decoding function System.Web.HttpUtility.UrlDecode (s), the use of the process has the following points to note js in Escape corresponding C # decoding function System.Web.HttpUtility.UrlDecode (s)//Note the

Decimal Turn binaryConvert.ToString (69, 2); 69 for the value to be transferredDecimal Turn octalConvert.ToString (69, 8); 69 for the value to be transferredDecimal Turn hexConvert.ToString (69, 16); 69 for the value to be transferredBinary goto

varDllName ="EasyHook.dll"; varDllPath =Path.Combine (AppDomain.CurrentDomain.BaseDirectory, dllName); if(System.Runtime.InteropServices.RuntimeEnvironment.FromGlobalAccessCache (Assembly.LoadFrom (DllPath)))

In C # programming, there are two ways of initializing an integer:(1), the more cumbersome method, the code is as follows:New Int32 ();(2), the minimalist method, the code is as follows:int a=0;Comparing two methods, the analysis is as follows:The

First, the story lineINI file is a very useful configuration file, through the system API can easily manage parameters, this article describes the C # file read and write methods.Second, the file formatUsually the INI file is in this format:[Section1

The difference between static and non-static methods: 1. Static methods can be called without a class instantiation, whereas non-static methods need to be instantiated before they are invoked; 2. Static methods can access only static members and

The Clipboard is a feature provided by the Windows system, and has been brought along since the first version of Windows 3.2 I touched. When using C + + in the past, it was done directly using the Windows API. NET, there is also a wrapper class for

Sometimes you need to distinguish between different custom errors, or you may need specific error parameters, and you need to customize some of the exception classes, and the method is simple enough to simply inherit exception and its constructors.

C # Memory Management parsingPreface: For many C # programmers, often very little attention to the release of their memory, they think C # with a powerful garbage collection mechanism, all unwilling to consider this aspect of things, in fact, many

Hdu 6194 Shenyang Network Competition -- string (suffix array), hdu -- string Question Link   Problem DescriptionUncle Mao is a wonderful ACMER. One day he met an easy problem, but Uncle Mao was so lazy that he left the problem to you. I hope you