use subscript operator to write value to a map : map insert « map multimap

use subscript operator to write value to a map : map insert « map multimap « C++ Tutorial

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C++ Tutorial » map multimap » map insert

23.6.8.use subscript operator to write value to a map

#include <algorithm>

#include <iostream>

#include <map>

#include <utility>



using namespace std;



int main( )

{

   const char* word[] = { "A", "B", "C", "D","E" };

   const char* clue[] = { "a", "b","c", "d","e" };



   map<string,string> dictionary1;

   transform( word, word+sizeof(word)/sizeof(word[0]), clue,inserter( dictionary1, dictionary1.end() ),make_pair<string,string> );

   cout << "There are " << dictionary1.size() << " words in the dictionary\n\n";



   cout << "The clue for POPS is \"" << dictionary1["POPS"] << "\"\n"

      << "The clue for TAT is \"" << dictionary1["TAT"] << "\"\n"

      << "The clue for ESPO0 is \"" << dictionary1["ESPO0"] << "\"\n";



   cout << "\nThere are " << dictionary1.size() << " words in the dictionary\n\n";



   // use subscript operator to write value

   dictionary1["ESPO0"] = "Typo in name";

   cout << "The clue for ESPO0 is \"" << dictionary1["ESPO0"] << "\"";



 

}

23.6.map insert
	23.6.1.	Insert characters into map.
	23.6.2.	Use insert() to add an entry
	23.6.3.	Duplicate keys are not allowed in a map
	23.6.4.	Insert a pair using function make_pair
	23.6.5.	Insert a pair object directly
	23.6.6.	Insert using an array-like syntax for inserting key-value pairs
	23.6.7.	Insert key-value pairs into the map using value_type
	23.6.8.	use subscript operator to write value to a map
	23.6.9.	Insert value pair to map

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