[交流] C++ assert语句已有2人参与

#include <iostream>
#include <cassert>
#include <cmath>

int main(int argc, char* argv[])
{
     double a;
     std::cout << "Enter a non-negative number:\n";
     std::cin >> a;
     assert(a>=0.0);
     std::cout << "The square root of " << a;
     std::cout << "is" << sqrt(a) << "\n";
     return 0;
}

int main(int, char **): Assertion 'a >= 0' failed

if (__DEBUG)
{ assert(...); }