trainings/CreatingReliableSoftwareCpp/Presentation/exercises/exception/main.cpp

44 lines
1.1 KiB
C++

#include <stdio.h>
#include <utility>
#include <numeric>
#include <string>
#include <iostream>
#include <vector>
int parse(const std::string& str) {
if (str.empty()) {
std::cout << "String is empty!";
return 0;
}
if (str.size() > 20) {
std::cout << "Value is to big to fit in integer!";
return 0;
}
return std::stoi(str);
}
std::string read(const std::vector<int>& vec) {
if (vec.empty()) {
std::cout << "Vector is empty, can't read";
return "";
}
if (vec.size() > 20) {
std::cout << "Vector is to big";
return "";
}
return std::accumulate(vec.begin(), vec.end(), std::string{}, [](const auto& str, int num){
if (str.empty()) {
return std::to_string(num);
}
return str + ", " + std::to_string(num);
});
}
int main() {
std::cout << "Parsed number: " << parse("-123") << '\n';
std::cout << "Read numbers: " << read({1,2,3-1,-2,-3}) << '\n';
std::cout << "Parsed number: " << parse("123456789012345678901234") << '\n';
std::cout << "Read numbers: " << read({}) << '\n';
}