为什么在类构造函数方法中，std::string 参数在调试时显示不同的结果?

为什么在类构造函数方法中，std：：string 参数与其他地方不太相似？

例如：

class MyIssue{
public:
MyIssue(std::string str){
return;       // 3.
}
}
void test(std::string str){
return; // 2.
}

auto str = std::string("123");  // 1.
test("123");
MyIssue my_issue("123");

当我调试它时，1.、2.行显示 str 是"123"。

但是3.行显示 str 是 "\336\223\000..."(这是一个巨大的尺寸值。我什至无法使用GDB评估它)。

那么你们能告诉我为什么，这是我的错误还是功能？使用时需要注意什么吗？

--------添加一些信息--------

我正在使用Clion(Windows)+ MinGW来构建项目。而且我从来没有改变过 cmake 文件的设置，而是添加一个 gtest 库并创建一个要运行的新目标。

现在我创建了一个全新的空项目，也由Clion(Windows)+ MinGW创建。我将上面的代码复制到其中。

3.行调试结果变为">(空)。无论我在构造函数中使用什么方法，例如"擦除"、"cout"等。调试值仍显示"。就像它在上一个项目中显示"/xxx/yyy"样式一样。

我不太确定 CLion 如何设置编译设置。我假设它们在CMakeCCompiler.cmake和CMakeCCXXompiler.cmake中。这两个是我之前项目的两个。

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