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///
/// @file nth_prime2.cpp
/// @brief Test nth_prime edge cases
///
/// Copyright (C) 2022 Kim Walisch, <kim.walisch@gmail.com>
///
/// This file is distributed under the BSD License. See the COPYING
/// file in the top level directory.
///
#include <primesieve.hpp>
#include <stdint.h>
#include <iostream>
#include <exception>
#include <cstdlib>
using namespace primesieve;
void check(bool OK)
{
std::cout << " " << (OK ? "OK" : "ERROR") << "\n";
if (!OK)
std::exit(1);
}
int main()
{
uint64_t res;
uint64_t start;
int64_t n;
n = 1;
start = 1;
res = nth_prime(n, start);
std::cout << "nth_prime(" << n << ", " << start << ") = " << res;
check(res == 2);
n = 1;
start = 2;
res = nth_prime(n, start);
std::cout << "nth_prime(" << n << ", " << start << ") = " << res;
check(res == 3);
n = -1;
start = 102;
res = nth_prime(n, start);
std::cout << "nth_prime(" << n << ", " << start << ") = " << res;
check(res == 101);
n = -1;
start = 101;
res = nth_prime(n, start);
std::cout << "nth_prime(" << n << ", " << start << ") = " << res;
check(res == 97);
n = -9592;
start = 100000;
res = nth_prime(n, start);
std::cout << "nth_prime(" << n << ", " << start << ") = " << res;
check(res == 2);
n = -9591;
start = 100000;
res = nth_prime(n, start);
std::cout << "nth_prime(" << n << ", " << start << ") = " << res;
check(res == 3);
try
{
n = -1;
start = 2;
res = nth_prime(n, start);
std::cerr << "ERROR: nth_prime(" << n << ", " << start << ") = " << res;
return 1;
}
catch (primesieve_error& e)
{
std::cout << "OK: " << e.what() << std::endl;
}
// This test triggers a GCC bug if GCC version <= 12,
// hence we avoid running this test with GCC <= 12.
// See https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106627
#if __GNUC__ >= 14 || \
!defined(__GNUC__) || \
defined(__clang__)
try
{
n = 1;
start = 18446744073709551557ull;
res = nth_prime(n, start);
std::cerr << "ERROR: nth_prime(" << n << ", " << start << ") = " << res;
return 1;
}
catch (primesieve_error& e)
{
std::cout << "OK: " << e.what() << std::endl;
}
#endif
std::cout << std::endl;
std::cout << "All tests passed successfully!" << std::endl;
return 0;
}
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