How to achieve some exclusive statements and some common statements for multiple cases in a switch?

Question

I have a switch statement where each case has unique code, and some code that is shared between all cases except the default label. Is there a good way to have a shared command between the different case labels?

Edit: code example

switch (c)
{
    case '+':
        command.type = ADD;
        commands.push_back(command);
        break;
    case '-':
        command.type = SUB;
        commands.push_back(command);
        break;
    case '>':
        command.type = INC;
        commands.push_back(command);
        break;
    case '<':
        command.type = DEC;
        commands.push_back(command);
        break;
    case '.':
        command.type = PUT;
        commands.push_back(command);
        break;
    case ',':
        command.type = GET;
        commands.push_back(command);
        break;
    default: break;

Answer 1

• Set a flag to true
• in the default case of the switch, set the flag to false
• run the common code if the flag is true.

Something like the following:

bool MyPushBackFlag = true;
switch (c)
{
    case '+':
        command.type = ADD;
        break;
    case '-':
        command.type = SUB;
        break;
    case '>':
        command.type = INC;
        break;
    case '<':
        command.type = DEC;
        break;
    case '.':
        command.type = PUT;
        break;
    case ',':
        command.type = GET;
        break;
    default: MyPushBackFlag = false; break;
}

if (MyPushBackFlag)
     commands.push_back(command);