Multiple Catch Blocks in Function Try Blocks

Yes, you can have multiple catch blocks in a function try block, just like in a regular try-catch block. This allows you to handle different types of exceptions differently. Here's an example:

1#include <iostream>
2#include <stdexcept>
3
4void processValue(int value) try {
5  if (value < 0) {
6    throw std::invalid_argument{"Negative value"};
7  }
8  if (value == 0) {
9    throw std::runtime_error{"Zero value"};
10  }
11  std::cout << "Value: " << value << "\n";
12} catch (const std::invalid_argument& e) {
13  std::cout << "Invalid argument: "
14    << e.what() << "\n";
15} catch (const std::runtime_error& e) {
16  std::cout << "Runtime error: "
17    << e.what() << "\n";
18}
19
20int main() {
21  processValue(42);
22  processValue(-5);
23  processValue(0);
24}

1Value: 42
2Invalid argument: Negative value
3Runtime error: Zero value

In this example, the processValue function uses a function try block to catch exceptions. It has two catch blocks: one for std::invalid_argument exceptions and another for std::runtime_error exceptions.

Depending on the value passed to the function, different exceptions are thrown and caught by the corresponding catch block. The appropriate error message is then printed.

This demonstrates how you can use multiple catch blocks in a function try block to handle different types of exceptions separately.