operations not associative

An associative array of shellsThe Shell associative Array    bashi has no native support for similar hash table, unlike Perl or Python. The subscript array element is accessed by an array subscript (an array subscript can be an arithmetic

1. Related Container IntroductionThe elements in the associative container are saved and accessed by keyword. The two main associative container types are map and set. The element in map is a keyword-value pair. Each element in the set contains only

The key word holds the element in order,Map, associative array, save keyword-value pairs, set, keyword is value, save only the keyword container multimap, the keyword can be repeated multiset, unordered collection unordered_map, with hash function

The container type of C + + can be divided into two categories: sequential container and associative container. The knowledge of sequential containers can be reviewed in my previous essay, "C + + sequential container knowledge summary". The

The source code to be learned in this chapter is in Dict.h and dict.c two files. In the Java language, or in other languages that support associative arrays, the first thing we know is that associative arrays (dictionaries) are "arrays" of key-value,

C + + associative containers Simple SummaryMap provides variable-size associative containers that efficiently retrieve element values based on associated key Values. When you are working with data on Key-value pairs, you can consider using the Map

Associative containersThe Association container supports the efficient discovery and reading of elements by key (key). Two basic associative containers are the elements of map and Set,map, organized as key-value pairs, indexed by keys, values for

The C + + 11 standard Adds a new four unordered associative containers, respectivelyunordered_map Mappingunordered_multimap Multiple mappingsUnordered_set CollectionUnordered_multiset Multiple Sets The same as the basic functions of the normal map

 abstract : A typical application of std::map as a container is to function as an associative array. In languages such as Java and so on, associative arrays exist extensively. Std::map is a container that has two words in its conceptual framework:

1. Set and MultisetFeatures of Set:(1) All elements are automatically sorted based on the key value of the element.(2) Set is a set, the key value of its element is the real value, the real value is the key value, does not allow two elements to have