c++ - Access number that corresponds to string -


let's have following variables:

int number1 = 2; int number2 = 4; ... int numbern = 43; 

now want access these elements in loop on number 'i', following:

for (int = 0; < n; i++) {   if(number1 == somefunc("number" + to_string(i)))   {     // stuff   } } 

here 'somefunc' should make sure recognizes want use number string corresponds to. how this?

for using std::map can this:

#include <iostream> #include <stdlib.h> #include <map> #include <string>  using namespace std;  int main (void) { map<string,int> mymap;  mymap["number1"] = 2; mymap["number2"] = 4; /* ... */  char number[2]; number[1] = '\0'; for(int ii=1; ii<=2; ii++) {     number[0] = (char)(ii+48);     cout << string("number")+string(number) << ": ";     mymap[string("number")+string(number)] += 1;     cout << mymap[string("number")+string(number)] << endl; }  return 0; } 

here string key through can access actual number. in example didn't ensure key exists anyway should done normally.


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