What are the limitations of switch statements in C++?

What are the limitations of switch statements in C++?

Switch statements in C++ have several limitations, such as:

1. They can only evaluate integral types (like int, char) and enums.
2. They do not support ranges or conditions like if-else statements.
3. Each case must be a constant expression.
4. No fall-through behavior unless explicitly handled with 'case' statements.

Can you explain why switch statements can't handle strings?

Switch statements in C++ are designed to work with integral types and enums. Strings are not integral types, so they cannot be evaluated in a switch statement. Instead, you can use if-else statements to handle string comparisons.

What happens if I use a non-integer type in a switch statement?

If you use a non-integer type in a switch statement, such as a float or a string, the compiler will generate an error. The switch statement requires the expression to be of an integral type.

Are there any alternatives to switch statements?

Yes, alternatives to switch statements include:

1. If-else chains for more complex conditions.
2. Maps or dictionaries for associating keys with values.
3. Function pointers or std::function for dynamic behavior.

Can I use a switch statement with enums?

Yes, switch statements work well with enums in C++. You can use enum values as case labels, which makes your code more readable and maintainable.