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According to the C++ standard,

The switch statement causes control to be transferred to one of several statements depending on the value of a condition.

The keyword switch is followed by a parenthesized condition and a block, which may contain case labels and an optional default label. When the switch statement is executed, control will be transferred either to a case label with a value matching that of the condition, if any, or to the default label, if any.

The condition must be an expression or a declaration, which has either integer or enumeration type, or a class type with a conversion function to integer or enumeration type.

char c = getchar();
bool confirmed;
switch (c) {
  case 'y':
    confirmed = true;
  case 'n':
    confirmed = false;
    std::cout << "invalid response!\n";

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