c stl tutorial

Over map, huh? Map provides a very common feature, which is to provide key-value storage and lookup capabilities. For example, I want to record a person name and the corresponding storage, and add at any time, to quickly find and modify:Yeu Bu-The head of Huashan faction, called the Gentleman Sword Zhang Sanfeng-Wudang head, Taijiquan founder Oriental undefeated-first master, sunflower treasure ...This information is not complicated if it is saved, but it is more troublesome to find. For example

First of all: The following article is for the use of Windows, because the Std::map erase function of the Windows implementation version is to return a std::map iterator, but the STL standard inside the return value of the function is actually:There are 3 overloads of the Map.erase:void Erase (iterator position);Size_type Erase (const key_type x);void Erase (iterator first, iterator last);。So the last example in the code below can only be run under a

/*5th Chapter C++STL Generalization Technical Analysis 5.1 algorithm and iterator 5.2 memory allocator and Container 5.3 Concept 5.4 Chapter Summary 5th Chapter C++STL Generalization Technical Analysis 5.1 algorithm and iterator 5.1.1 algorithm 5.1.2 iterator 5.1.3 Function Object 5.1.4 Adapter 5.2 memory allocator and container 5.2.1 Memory Allocator 5.2.2 Container 5.3 concept 5.3.1 basic concept 5.3.2 co

C + + contains an STL (Standard Template Library), which is what we often call the C + + templates Gallery, also known as C + + generic library, which he named in StdSome of the data structures and algorithms that we commonly use are very handy for using in a problem.STL provides three types of components: containers, iterators, and algorithms. They all support generic program design standards.A) There are two main types of containers: sequential cont

GDB's custom commands are very useful, by customizing the commands to directly manipulate the data in the container, you can easily view the data in the STL container. This link dbinit_stl_views is a custom command written by Dan C Marinescu to view the STL container (if it is not for your STL version, you can modify it yourself). Add it to your. Gdbinit, you can

The standard Template Library, a set of template classes and functions, provides the programmer with an algorithm for storing information in a container that accesses the contents of an iterator that stores information. In simple terms, it is divided into three parts, algorithms, iterators, containers, where the iterator is the bridge between the algorithm and the container, allowing programmers to operate the container through the algorithm, and these algorithms are not container-related, such

This article on the introduction of STL vector usage is very detailed, please see below Introduced The purpose of this article is to introduce std::vector, how to properly use their member functions, and so on. The use of conditional functions and function pointers in iterative algorithms, such as in Remove_if () and For_each (), is also discussed in this paper. By reading this article readers should be able to use vector containers effectively, and

People who have learned C + + will be very familiar with STL Standard Template Library, STL is actually encapsulates a series of interfaces for us to call. The implementation of many functions or algorithms does not require us to write from scratch, greatly improving our programming efficiency. This blog will introduce the use of vectors in detail in the context of a brief introduction to

The pai_range Algorithm in STL returns a pair value range,Vector ... // Vec initializePair Range = pai_range (vec. begin (), vec. end (), value );Range. first is the position of the smallest iterator that can insert values without changing the original sorting order, range. second is the maximum iterator location where values can be inserted without changing the original sorting order.Actually, if value exists in vec, range. first is the iterator in v

decode JSON data, including the Jsonlint formatting and validation functions.Github Address: Https://github.com/dmeranda/demjsonOfficial address: http://deron.meranda.us/python/demjson/Environment configurationBefore using Demjson encoding or decoding JSON data, we need to install the Demjson module first. In this tutorial we will download Demjson and install:pip install demjsonMore installation Information view: Http://deron.meranda.us/python/demjso

Source: http://blog.csdn.net/niushuai666/article/details/6654951 List1. The List member function push_back () puts an object behind a list, while push_front () puts the object in front.2. The list container does not support adding a number to the iterator to point to another object. That is to say, we cannot use milkshakes. Begin () + 2 to point to the third object in the list, because the STL list is implemented by a double-Chain List, which does no

Map is an associated container of STL, which provides one-to-one (the first can be called a keyword, each keyword can only appear once in map, and the second can be called the value of this keyword) because of this feature, it is possible to provide a quick channel for programming when we process one-to-one data. Here, we will talk about the organization of map internal data. Within map, we will build a red/black tree (a non-strictly balanced binary t

Directory 1. Map Overview 2. Map Constructor 3. Data insertion 4. Map size 5. Data Traversal 6. Data Search 7. Empty and empty data 8. data deletion 9. Other functions 10. Sort 11. In addition 1. Map Overview (return) Map is an associated container of STL, which provides one-to-one (the first can be called a keyword, each keyword can only appear once in map, and the second can be called the value of this keyword) because of this feat

Two days ago, we found that the memory usage of STL programs in Linux was relatively large. No Memory leakage was found through the valgrind check. The analysis may be related to STL, So we tested STL separately. The program creates 10 threads and uses the separation method to create a thread every 2 seconds. 1. test new and delete In each thread, a large new pie

Relationship between C ++ standard library and STL 1. Getting started with STL In a broad sense, STL code is divided into three types: algorithm (algorithm), container (container), and iterator (iterator). Almost all the Code uses the template class and template function, this provides a better chance of code reuse than a traditional library composed of functions

You may experience an access violation when you access an STL object through a pointer or reference in a different DLL or EXE. [Http://support.microsoft.com/default.aspx? SCID = kb % 3ben-us % 3b172396]On this page * Symptoms* Cause* Resolution* Status* More InformationO steps to reproduce the behavior SymptomsWhen accessing an STL object created in one DLL or EXE through a pointer or reference in a differe

View STL containers in GDB (The main content of this article comes from http://sourceware.org/gdb/wiki/STLSupport) Currently, GDB cannot print the content of the STL container by default, but there are many ways to do this on the Internet. I tried it and it is easier to do the following: Table of contents 1 GDB-STL-Views 2 GDB 7.0 1 GDB-

Today you can put the implementation of the STL library iterator, and the type extraction well tidy upThe design thinking of iterators is the key to STL, in the actual use of STL and generic thinking, iterators play a very important role, STL is trying to separate the concept of data containers and algorithms, so there

Today finally read the "STL Source Analysis", recently busy two games of various documents, there is no time to write things, take advantage of the strength of the reading, the owed to fill up.The iterator model is described in Design patterns as follows: Provides a way to sequentially search through the elements contained in a polymer without exposing the internal structure of the polymer. In STL, iterator

 1.STL composition: STL there are three core parts: Containers ( Container ), Algorithms ( Algorithms ), iterators ( Iterator ), the container adapter ( Containeradaptor ), the function object (functor) , in addition to other STL other standard components. In layman's words:container: Something to fill, a cup to fill with water, a sea of salty water, a classr