stl software

operation is unsuccessful and ineffective, then you should use list or associative container.5. If you often need to search for elements based on a guideline, you should use the set or multiset to sort the elements with that sort criteria. Remember, in theory, the logarithm complexity is 10 times times better than the linear complexity in the order of 1000 elements. In terms of search speed, hash table is usually 5-10 times faster than a binary tree. But the elements of the hash table are not s

See more details: https://zcheng.ren/2016/08/23/STLVector/ In C + + because the array can not dynamically expand, so in the STL set vector to achieve the role of dynamic array, by allocating contiguous memory space to store elements, if the insertion of elements when the memory space is not large enough, you can reassign the memory to implement a dynamic array.The vector's structure consists of 3 parts: The starting iterator that marks the starting p

The common search algorithms are as follows:Find ()Find_if ()//Search_n ()Search ()Find_end ()Find_first_of ()Adjacent_find ()//These two methods are common, try out all the containers, but the lookup efficiency is slow, is the linear lookupFind () This complexity is linear complexityFIND_IF () This complexity is linear complexityAttention:1, if it is an ordered interval, you can use the ordered interval lookup algorithm (Binary_search includes () Lower_bound () Upper_bound ()).2, the associativ

Search_n () is used to find contiguous n-matched values or add predicatesSearch_n (b, E, C, v)Search_n (b, E, C, V, p)Note: The second form of the method should be search_n_if (b, E, C, p)#include STL STL Algorithm for C + +-Find algorithm (2)

The implementation principles of stl are simple and easy to understand, and stl principles are explained. SummaryPlease use vector for frequent Random Access2. listA list is a two-way linked list, where elements are stored in the heap. Each element is stored in a piece of memory. Its memory space can be discontinuous and data access can be performed through pointers, this feature makes random access very in

STL Series 5: Queue container and stl series queue containerQueue Introduction Queue is a queue container and a "first-in-first-out" container. Queue is a simple deque container and becomes another container. # Include 1. Default Construction of the queue object The queue is implemented using the template class. The default construction form of the queue object is queue 2. The push () and pop () Metho

STL container stack basic usage summary, stl container stack Summary /* Stack container Methods: push (), pop (), top (), empty (), size () * // # include

Summary of the basic usage of STL container vector and stl container vector According to ACM program design, we use examples to demonstrate vector usage. Methods: push_back (), insert (), erase (), clear (), size (), empty (); Algorithm: reverse (), sort (), accumulate (). 1 # include

Scattered records of STL Learning (constantly updating), and stl learning is constantly updatedI write what I use, so I don't pay too much attention to typographical layout. I will sort it out after I write too much: 1: vector 2: The iterator cannot be set for the priority queue because there is no 3: # Include String str2 (str,); // truncate the str string Array 0 ~ Element 7, which comes with the

STL _ FUNCTION template, stl function Template # Include # Include Using namespace std; # Define MAX (T )\T max _ # T (T x, T y ){\Return x> y? X: y ;\}// Generate the following three types of functions during preprocessingMAX (int) // int max_int (int x, int y) {return x> y? X: y ;}MAX (double)MAX (string) # Define mymax (T) max _ # T // The function name is replaced by a macro function Int main (){Cout Co

STL container, stlArticle from http://blog.csdn.net/zhouyunxuanSeven sequence container types1. vector is a type of representation of arrays. It provides an automatic memory management function to dynamically change the length of a vector object and scale down as elements are added or deleted,It provides Random Access to elements. The time for adding and deleting elements at the end is fixed, but the complexity of inserting and deleting elements in th

In the previous article, the story about stl_vector is just the beginning. In this article, we will analyze the details in vector. Again, I have not read any books on stl source code analysis. I emphasize that this is to prevent others from misunderstanding that I copied it from other places. The subsequent articles will detail the function implementation in vector.I try my best to make it small, and I can try my best to use my own language and my ow

container and its size can be changed. It can improve the Data Reading Capability Based on keywords.(2) provides a two-way positioner to read and write data.(3)Sorted by keywords and a comparison Function.(4)All keywords are unique..(5) a template that provides a general and independent data type. 4) for more information about map, see resources. Download STL map resources 5) combined with the map method, a comprehensive test is provided.Code:

Details: https://zcheng.ren/2016/08/24/STLList/ C + + implemented vector since it cannot be implemented to quickly delete and insert elements, the STL designer then proposes to use list to solve the problem: through the memory of discontinuous space allocation node, through the link to operate, can quickly achieve this advantage.The nodes of the list include: pointer prev to the previous node, pointing to the pointer to the back node next;Iterator is

algorithm parameter. It is generally more efficient to pass the code generated by passing the STL function object-disguised as the function object-to the algorithm. The reason is inline. Another reason for replacing functions with function objects is that they can help you avoid subtle language traps. Article 47: Avoid writing only code Software that cannot be read or understood cannot be maintained, and

Reference an article translated on the MS Website:STL std: string class causes crash and memory damage on multi-processor computersHttp://support.microsoft.com/default.aspx? Scid = kb % 3Bzh-cn % 3B813810 Original English:Http://support.microsoft.com/default.aspx? Scid = kb; en-us; 813810 --------- Abstract --------------Symptom Cause Solution Method 1: use Microsoft Visual C ++. NET (7.0 and later) Method 2: Use Microsoft Visual C ++ 6.0 to remove STL