#include <string>
#include <stdexcept>
#include <iostream>
int N_size_file = 5000;
int N_MAX = 4500;
void f()
{
    if(N_size_file > N_MAX)
        throw std::runtime_error(   "check(): Hidden node count of "
                                  + std::to_string(N_size_file)
                                  + " exceeds maximum allowed value of "
                                  + std::to_string(N_MAX));
}
int main()
{
    try {
        f();
    } catch(const std::exception& e) {
        std::cout << "Caught exception: " << e.what() << '\n';
    }
}

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