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我只是在尝试我的教程来尝试 catch2 单元测试库。我在 10.14 中使用 mac。我没有完整的 XCode，只有 cmd 工具和 macports 在我的设置中运行完美（没有 brew）。我按照建议使用合并的单个头文件和源文件。

然而，一个简单的教程：

#define CATCH_CONFIG_MAIN  // This tells Catch to provide a main() - only do this in one cpp file
#include "catch.hpp"

unsigned int Factorial( unsigned int number ) {
    return number <= 1 ? number : Factorial(number-1)*number;
}


TEST_CASE( "Factorials are computed", "[factorial]" ) {
    REQUIRE( Factorial(1) == 1 );
    REQUIRE( Factorial(2) == 2 );
    REQUIRE( Factorial(3) == 6 );
    REQUIRE( Factorial(10) == 3628800 );
}

给出了许多编译错误 - snip：

In file included from test1.cpp:2:
./catch.hpp:75:49: warning: deleted function definitions are a C++11 extension [-Wc++11-extensions]
            NonCopyable( NonCopyable const& ) = delete;
                                                ^
./catch.hpp:76:37: warning: rvalue references are a C++11 extension [-Wc++11-extensions]
            NonCopyable( NonCopyable&& ) = delete;
                                    ^
./catch.hpp:76:44: warning: deleted function definitions are a C++11 extension [-Wc++11-extensions]
            NonCopyable( NonCopyable&& ) = delete;
                                           ^
./catch.hpp:77:60: warning: deleted function definitions are a C++11 extension [-Wc++11-extensions]
            NonCopyable& operator=( NonCopyable const& ) = delete;
                                                           ^
./catch.hpp:78:48: warning: rvalue references are a C++11 extension [-Wc++11-extensions]
            NonCopyable& operator=( NonCopyable&& ) = delete;
                                               ^
./catch.hpp:78:55: warning: deleted function definitions are a C++11 extension [-Wc++11-extensions]
            NonCopyable& operator=( NonCopyable&& ) = delete;
                                                      ^
./catch.hpp:81:26: error: expected ';' at end of declaration list
            NonCopyable() noexcept = default;
                         ^
                         ;

请建议，谢谢。

编辑：

在@Tiib 建议尝试g++ -std=c++17编译和构建代码之后。g++ -std=c++11也没有工作。不明白为什么。

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