treehouse c# review

C language is more suitable for operating hardware and is more efficient in some file processing operations, so similar operations generally use JNI to call C code for operations: such as audio, video and image processing: For example, in audio format Transcoder, similar to photo's rendering of image effects and other applications, a large number of JNI applications are required. Here we will

compilerWhen a virtual function exists, each object has a pointer to the virtual function table (vptr pointer) Illustration 1:Calling an overriding function through the virtual function table pointer vptr is done when the program runs, so you need to address it to determine which function is really supposed to be called. The normal member function is a function that determines the call at compile time. In efficiency, the efficiency of virtual function is much lower.Illustration 2:For efficie

C ++ basic knowledge Review (string basics, smart pointers, iterators, and containers)[2, 1.1] string Construction 1 # include [1.2] string input for C-style strings, there are three input methods: char info [100]; cin> info; // read a word from the stream and store it in info. cin. getline (info, 100); // read a row from the stream and store it in info. Delete

The data definition of a binary tree is realized in C language. The construction and destruction of a binary tree, as well as the recursive algorithms of the first, middle, and back orders are being studied. /* Optional /*--------------------------------------------------------------------------------------------*/ // The binary tree binary linked list storage structure is implemented in C language. // Impl

specific objects? In other words: int getk () const {return k;}, how does the code differentiate between specific obj1, OBJ2, and Obj3 object K values? The right side of the implementation of the C + + class is the corresponding underlying implementation.Summarize:1. member variables and member functions in C + + class objects are stored separately. Memory four-zone model in

New {mainingredient = "Panir Tikka", Style = "Jalfrezi" spiciness=8}; + v.style+v.spiciness); See, right, yes, it's that simple.Remarks: About Why should the anonymous type of C # Restrict properties to read-only? I think it's good to say something from a netizen.In fact, the anonymous type is C # 3.0 introduced all the new features introduced inC # 3.0 to implement the great language features of LINQ.

elements), so p+1 from Point A[0] to a[1]2.* (* (p+1) +3): Why are there two stars?* (p+1) = a[1][0] (i.e. 5), the first star from a[1] to a[1][0], although the address has not changed, but the type of pointer changed! The original pointer +1 is a plus 4 int, now the pointer + 1 only add an int!!* (p+1) +3 = A[1][3] (that is, 8), then take a * is to read from the address 8You can also modify the original code to clarify:1#include 2 3 intMain ()4 {5 inta[3][4] = {{1,2,3,4}, {5,6,7,8}, {9,Ten

the pointer, and the pointer is assigned a value of 0 immediately after delete, indicating that the pointer no longer points to any object11 Type conversionsImplicit conversions: pointers to arbitrary data types are converted to void* types, integer numeric constants 0 to arbitrary pointer typesExplicit conversions (coercion type conversions):cast_namedynamic_cast: Supports runtime recognition of pointers or objects pointed to by referencesConst_cast: Converts the Const property of an expressio

The object does the function parameter//1 studies the copy constructs the//2 to study the constructor function, the destructor call Order//summary construction and the destructor call Order # include "iostream" using namespace Std;class abcd{// This () public:abcd (int A, int b, int c) {this->a = A;this->b = B;this->c = c;printf ("ABCD () construct, A:%d,b:%d,

signed character type variable is legal, it does not represent a single character, but instead stores a negative integer as a byte integer variable.Such as:Signed char C =-6;printf ("%d", c);//output IS-68. In the C language, real numbers are stored in exponential form in the storage unit.The compilation system allocates 4 bytes for each float variable, and the

from another (PTR1-PTR2) would have ptrdiff_t type. ptrdiff_t type is usually used for loop, array indexing, size storage and address arithmetic. ptrdiff_t type has its synonym intptr_t whose name indicates more clearly that it can store a pointer. In some cases using ptrdiff_t type are more effective and safe than using a further habitual for the programmer int type. time_t The time_t is the same in 32 and 64 bits:/usr/include/linux/types.h:54:typedef __kernel_time_t time_t;/usr/