Vector is the most widely used type of container in STL, and its important characteristics are summarized and summarized here. the initialization of vectors
Vector initialization, see the following code.
Vector v2; Vector with 0 element
vector
The programming Vector class provides the ability to implement a scalable array, and the array becomes larger as more elements are added. After you delete some elements, the array becomes smaller.
The Vector has three constructors,
public Vector
C + + STL library vector is known as a dynamic array of reputation, why. I think there are several reasons for this:
1 It can make up for ordinary array (such as "int a[8]") only fixed length defects;
2 It can make up for general heap array (such as
STL cross-platform calls may encounter many exceptions. You can try it.
STL uses the template generation. When we use the template, every EXE and DLL generates their own code in the compiler, causing the static members used by the template to be
If you use the STL algorithm frequently, you will notice that the function object is passed in the form of passing values as follows: sort, for_each, _ Compare _ comp instead of _ Compare & _ comp.
template inline void
In the field of machine learning, SVM is a supervised learning model associated with learning algorithms that can analyze data used for classification and regression. Given a set of training samples, each marked as a class in two classes, a SVM
1.vector is a dynamic array that supports fast random access, so that elements are stored continuously, and when there is no space to accommodate the new elements, the container must allocate new memory space to move the previous elements to the new
Today, when I completed a functional module, I encountered a very difficult problem, probably like this:
A dll in the main module (exe) has a function FUNA (). This function needs to query the database and obtain the record set for processing. The
Because of the device limitations, I am now testing under Windows, and all of the following code has been run in vs2013Here is Example 1:#include #include #include #include using namespace std; Class D{public:d (): D (1) {}~d () {printf ("D
Reproduced from: http://publishblog.blogchina.com/blog/tb.b?diaryID=5349656
Absrtact: Using Oracle spatial to store and manage spatial data, it is easy to solve the problems of data sharing, distributed processing, network communication, open
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