AI Computer Science Academy · Faisalabad

C++ Foundations

Catch a bad number

Task 56 of 56 C++ Capstone: structs, maps and errors
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Catch a bad number

`std::stoi` throws `std::invalid_argument` on text. Catching it keeps the program alive and lets you skip the bad row.

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Task: Catch a bad number. What does this program print?

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What you start with 
#include <iostream>
#include <string>
using namespace std;

int main() {
    string values[] = {"250", "abc", "375"};
    int total = 0;
    for (const string& v : values) {
        try {
            total += stoi(v);
        } catch (...) {
            cout << "Skipped: " << v << endl;
        }
    }
    cout << "Total: " << total << endl;
    return 0;
}
C++ 1 automatic check Capstone: structs, maps and errors
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