treehouse c#

Register Keyword: The request compiler lets the variable be placed directly inside the CPU internal registers, rather than through memory addressing access, fast.In C, the register-modified variable cannot take the address, and the address of the register variable is in C language error.int main (){register int a=0;printf ("a=%x\n", a);return 0;}Compile Error!The same code we put in the

C + + all variables and functions must have a type;C The default type in the language is not legal in C + +! In C language can write some very strange function! and can run successfully!What type is the return value of the F (i) function? What is the parameter type? We have a value of 10 to print out!How many parameter

Today we will discuss several questions about C/C ++. Inline functions When it comes to inline functions, let's take a look at the following twoProgramThe program execution enchantment is to get the sum of the two values: // Procedure 1 Int Add ( Int X, Int Y){ Return X + Y;} Int Main (Int Argc, Char * Argv []){ Int A = 1 , B = 2 , C;

4. Function overloading in C ++, C ++ calls C Code, new/delete keywords, namespace (namespace), 4. cnamespace Main content of this chapter: 1)Function overload 2)C ++ calls C code 3)Dynamic memory allocation using the new/delete keyword 4)Namespace As we all know, in

Original: C # language History version features (C # 1.0 to C # 8.0 rollup)Historical version C # as Microsoft 2000 later. NET platform development of the language, the development has been 17 years of history, the language itself has a wealth of characteristics, Microsoft's support for its update is also very

1: Name spaceThe difference between 2:C and C + + string and basic operation3: Enum typeName Space #include string>#include#include#include#include//using declarations states our intent to use these names from the namespace Stdusing namespacestd;namespaceone{stringName ="Namesapce one's name";}namespacetwo{stringName ="NAMESAPCE The name of the";}stringName ="the global name";intMain () {Using one::name;//N

In the actual development, often encounter C + + mixed with the situation, the specific methods are as follows The c1.c file is a c file written in C: #include CPP1.cpp files are C + + files written in C + + #include Th

SETJMP and longjmp non-localized jump statements: Nonlocal refers to, this is not similar to the normal C language goto statement, the statement in a function to jump, but on the stack to jump, may skip many call frames, and then return to the current function call path in a function. Use setjmp and longjmp where you need attention:1) setjmp and longjmp are used in combination, have their corresponding call order, setjmp before, longjmp in order to be

C ++ calls the C method and the c method // 1. Compile the static library libtest. agcc-c test. c-o test. oar rc libtest. a test. o // 2. Compile the main function g ++-o main. cpp-I. /test-L. /test-static-ltestThe test files are stored in the current test directory. [Root

AbstractSTD: string is library type, and INT and double are built-in type. The two cannot convert each other using the (INT) or (double) method. IntroductionUse environment: Visual C ++ 9.0/Visual Studio 2008 Method 1:Use C's atoi () and atof (). Use c_str () to convert to C string, and then use atoi () and atof (). String_to_double.cpp/C ++ Code highlig

C/c ++ (suspect 3) Relationship between c pointer and array, pointer Array C/c ++ (Suspect 1) arrays and pointers C/c ++ (suspect 2) const extern With the previous two articles, we can

Today, I tried a C/C + + mixed programming, and then there was the problem of the egg ache above, went to the internet to check, found that the original is the language and the pre-C + + precompiled header problems.Error: The precompiled header file comes from an earlier version of the compiler, or the precompiled header is C