Sample of C++ code convention

CompanyWorkers.cpp

/* 
Code convention summary:
 - don't use underscores '_' (except in constants)
 - lines should not be longer than 100 symbols
 - indent using EITHER ALWAYS 4 spaces OR ALWAYS Tabs. Don't mix tabs and spaces.
*/

#include <string>

// Declaration and implementation should be split into "CompanyWorkers.h" and "CompanyWorkers.cpp" files.
class CompanyWorkers
{
private:
    static const int INITIAL_WORKERS_COUNT = 0;

    int workersCount;
    std::string companyName;

    bool workerExists(std::string workerName);

    void registerNewWorker(std::string workerName, int workerId);

public:
    CompanyWorkers(std::string companyName);

    void addWorker(std::string workerName);

    void removeWorker(std::string workerName);
};

CompanyWorkers::CompanyWorkers(std::string companyName) 
    :companyName(companyName),
    workersCount(INITIAL_WORKERS_COUNT)
{}

void CompanyWorkers::addWorker(std::string workerName)
{
    if (workerExists(workerName))
    {
        return;
    }

    int* pointerToWorkersCount = &workersCount;
    workersCount++;
    registerNewWorker(workerName, workersCount);
}

void CompanyWorkers::removeWorker(std::string workerName)
{
    bool canRemove = true;
    for (int i = 0; i < workerName.length(); i++)
    {
        if (workerName[i] == 'x')
        {
            canRemove = false;
            break;
        }
    }
}

bool CompanyWorkers::workerExists(std::string workerName)
{
    // implementation here
    return false;
}

void CompanyWorkers::registerNewWorker(std::string workerName, int workerId)
{
    // implementation here
}