Python dictionary to C++ map

Question

I am very new to C++ and am trying to translate a dictionary into a C++ format. I can't quite seem to find the answer I am looking for from the previous questions submitted on here.

I have code as follows:

#include <iostream>
#include <map>

using namespace std;

typedef std::map<string, int> BasePairMap;

int main()
{
    BasePairMap m;

    m['power'] = 0;
    m['select'] = 1;
    m['backup'] = 2;
    ...
    ...
    ...
    m['rewind'] = 71;
    m['boxoffice'] = 240;
    m['sky'] = 241;


    return 0;
}

But I keep getting character overflow errors. How can I map string/int pairs together in C++?

Thanks

String in C++ use double quotes, have you tried changing your simple quotes to those? — N. Faure
– N. Faure, Commented Jun 20, 2018 at 14:10
C++ doesn't use ' and " interchangeably. They are use to define different types of literals. — StoryTeller - Unslander Monica
– StoryTeller - Unslander Monica, Commented Jun 20, 2018 at 14:11

N. Faure · Accepted Answer · 2018-06-20 14:18:40Z

2

While many languages (such as Python) allow developers to use either single or double quotes for strings, in C++ you need to use double quotes (reference). Simple quotes are used for the char type which describes a single character (reference).

So your code should be:

#include <iostream>
#include <map>

using namespace std;

typedef std::map<string, int> BasePairMap;

int main()
{
    BasePairMap m;

    m["power"] = 0;
    m["select"] = 1;
    m["backup"] = 2;
    // ...
    m["rewind"] = 71;
    m["boxoffice"] = 240;
    m["sky"] = 241;

    return 0;
}

edited Jun 20, 2018 at 14:18

answered Jun 20, 2018 at 14:12

N. Faure

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