stl software

Article 36: Understand the correct implementation of copy_if STL has many interesting aspects, one of which is an algorithm with 11 names including "copy: Copy Copy_backward Replace_copy Reverse_copy Replace_copy_if Unique_copy Remove_copy Rotate_copy Remove_copy_if Partial_sort_copy Unintialized_copy But none of them are copy_if. This means you can replace_copy_if, You Can

The feature of set is that all elements are automatically sorted according to the key value, the set element does not have the real value (value) and the key value (key) as well as the map, the key value of the set is the real value, and the real value is the key value. Set does not allow two elements to have the same key value. The value of a set element cannot be modified by an iterator.The only difference between multiset and set is that Multiset allows key values to be duplicated.We use the

the use of STL map and set is not complicated, but there are some difficult to understand, such as: # Why is the efficiency of the insertion and deletion of map and set higher than the other sequence container? # Why did the previously saved iterator not expire after each insert? # Why don't map and set have a reserve function like a vector to pre-allocate data? # When data elements increase (10000 to 20,000 comparisons), how does the insertion and se

As we all know, the STL container class is for the object to store management. Although there is no clear limit to the inclusion of pointers in the STL container class, the STL does not care about the objects or pointers that you store in the container. But carefully consider the original intention of STL, the use of p

The STL template technology simplifies some algorithms for data management in software, and summarizes the principles and methods of STL implementation during work and learning, I will summarize some of my learning experiences in my blog (other parts will be published as appropriate in the future) for your reference. 1. Hierarchical map of vector, container, and

Full sorting is a hot topic in the test interview, because it is difficult to evaluate Recursive Implementation and non-Recursive Implementation, so as to distinguish the examinee's level. Therefore, Baidu and Xunlei have both taken the test in campus recruitment and the examination of programmers and software designers. Therefore, this article summarizes the full arrangement to help you better learn and understand. You are welcome to point out any su

iteratorsIterators provide access to objects in a container, and define the scope of the objects in the container. An iterator is like a pointer. In fact, C + + pointers are also an iterator. However, iterators are not just pointers, so you can't think they must have address values. An array index, for example, can also be thought of as an iterator.Iterators have a variety of different ways to create them. The program may create an iterator as a variable. An

The first task is to draw STL data OpenGL, which can be rotated, scaled, picked up (after picking, display the title number, node number), move the vertex position to change the shape of the object; the first stage: read and show how to read STL files generated by Solidworks model in STL: ASCII format of STL Files The

Document directory Aggregate (count) Aggregation (count) Aggregate (SUM) Aggregation (SUM) Aggregate (min) Aggregation (minimum) Aggregate (max) Aggregation (maximum) Aggregate (average) Aggregation (average) Aggregate (simple) Simple aggregation Aggregate (SEED) Aggregation with seeds Aggregate (count) aggregation (count) The Count operation is used to count the number of members that meet certain conditions in the original set. The result value is an integer.The following tab

STL function object STL not only enables us to write complex code more easily and quickly, but also makes the written code both standard and highly optimized. STD: vector //... STD: Sort (names. Begin (), names. End ()); Another elegance of STL is that it is highly configurable. In the above Code, the string element in the vector is sorted using the ClassState

and * that both that copyright notice and this permission notice appear * in supporting documentation. silicon Graphics makes no * representations about the suitability of this software for any * purpose. it is provided "as is" without express or implied warranty. * // * Note: This is an internal header file, encoded ded by other STL headers. * y Ou shoshould not attempt to use it directly. */# ifndef _ sg

The bottom layer of map in sgi stl is implemented by the red and black trees, and hash_map is implemented by the hash table. Hash_map does not allow insertion of duplicate key values. hash_multimap allows insertion of duplicate key values. The relationship between the two is like the relationship between map and multimap. The underlying hash table provides most of the operations. Most hash_map (hash_multimap) directly calls the hash table function.

The STL standard does not distinguish between basic algorithms or complex algorithms. SGI defines some common algorithms in The algorithm in stl_algobase.h is worth learning about copy (), which improves the efficiency of "having no need to use it. The purpose of copy is to copy an element to a specified range. The assignment operator = is the easiest way to think of a copy operation. However, some assignment operators = are trivial and can be copied

One: STL/RET/CMP/ZCPDescription: Simple Shun control instructions do not do other instructions.Control requirements : NoneProgramming Ladder diagram:Structured Programming ST Language:(* Step instruction STL (EN,S); *) SET (M8002,S3); STL (TRUE,S3) m419:=true;out_t (TRUE,TC0,K10); SET (TS0,S20); STL (TRUE,S20); m420:=t

Label:Http://www.yolinux.com/TUTORIALS/src/dbinit_stl_views-1.03.txt Save the text of a Web page to ~/.gdbinit You can then use the P command to view the contents of the STL container. # # STL GDB eval uators/views/utilities-1.03 # # The new GDB commands: # is entirely non instrumental # does not depend on any "inline" (s)-e.g.

Re-review the STLWhat is STL?STL (template and Standard Template Library), which implements type-independent algorithms and data types, requires that the type in the implementation be parameterized, allowing the user to make different types according to its needs.one or one-like introductionSTL, the standard Template Library, is a highly efficient C + + library with industrial strength. It is housed in the

STL Introduction (Standard Template Library) basic components of STL: Containers (Container), iterators (iterator), function objects (functions object) algorithm (algorithms) Iterators is a bridge between the algorithm and the container that uses iterators as parameters to access the container rather than the container directly as the parameter of the algorithm, using the function object as a parameter of t

Finally, I found the complete Chinese version of objective STL and gave it to everyone.The author explains how to combine STL components to maximize the benefits of library design. This information allows you to develop simple and direct solutions for simple and direct problems, and helps you design elegant methods for more complex problems. I described common STL