Simple test case for testing clang++ #pragma

unreachable_test.cpp

// Compilation:
// clang++ -Wunreachable-code -c src/Main.cpp -o build/Main.o
// src/Main.cpp:18:9: warning: will never be executed [-Wunreachable-code]
//         std::cout << "First debug output." << std::endl;
//         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
// src/Main.cpp:22:9: warning: will never be executed [-Wunreachable-code]
//         std::cout << "Second debug output." << std::endl;
//         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
// 2 warnings generated.
//
// What it should be:
// $ clang++ -Wunreachable-code -c src/Main.cpp -o build/Main.o 
// src/Main.cpp:22:9: warning: will never be executed [-Wunreachable-code]
//         std::cout << "Second debug output." << std::endl;
//         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
// 1 warning generated.
//
// See http://llvm.org/bugs/show_bug.cgi?id=9319

#include <cstdlib>
#include <iostream>

// const bool verbose = true;
const bool verbose = false;

int main(int argc, char *argv[])
{
    #pragma GCC diagnostic push
    #pragma GCC diagnostic ignored "-Wunreachable-code"
    if (verbose)
        std::cout << "First debug output." << std::endl;
    #pragma GCC diagnostic pop

    if (verbose)
        std::cout << "Second debug output." << std::endl;

    return EXIT_SUCCESS;
}