如何更新我的编译器以使用C ++ 11功能？ [英] How do I update my compiler to use C++11 features?

问题描述

我试图进入C ++，并购买了Bjarne Stroustrup的《编程-使用C ++的原理和实践》一书。

I tried to get myself into C++ and purchased the book "Programming - Principles and Practice Using C++" by Bjarne Stroustrup.

当我尝试编译以下源代码时：

When I tried to get compile the following source code:

#include "std_lib_facilities.h"
int main(){
    cout<<"Hello, World!\n";
    keep_window_open();
    return 0;
}

我遇到以下编译错误：

I am getting following compile error:

    In file included from /Users/hypertrooper/Documents/Programming - Principles and Practice Using C++/hello_world.cpp:1:
std_lib_facilities.h:71:20: warning: alias declarations are a C++11 extension [-Wc++11-extensions]
        using size_type = typename std::vector<T>::size_type;
                          ^
std_lib_facilities.h:102:20: warning: alias declarations are a C++11 extension [-Wc++11-extensions]
        using size_type = std::string::size_type;
                          ^
std_lib_facilities.h:107:8: warning: comparison of unsigned expression < 0 is always false [-Wtautological-compare]
                if (i<0||size()<=i) throw Range_error(i);
                    ~^~
std_lib_facilities.h:113:8: warning: comparison of unsigned expression < 0 is always false [-Wtautological-compare]
                if (i<0||size()<=i) throw Range_error(i);
                    ~^~
std_lib_facilities.h:213:107: error: expected '(' for function-style cast or type construction
inline int randint(int min, int max) { static default_random_engine ran; return uniform_int_distribution<>{min, max}(ran); }
                                                                                ~~~~~~~~~~~~~~~~~~~~~~~~~~^
std_lib_facilities.h:222:20: warning: alias declarations are a C++11 extension [-Wc++11-extensions]
using Value_type = typename C::value_type;
                   ^
std_lib_facilities.h:225:18: warning: alias declarations are a C++11 extension [-Wc++11-extensions]
using Iterator = typename C::iterator;
                 ^
6 warnings and 1 error generated.

我知道我的编译器未使用C ++ 11功能，但我不知道如何更新编译器，应该让我知道我使用的是MacOSX（10.10 Yosemite），并尝试使用xCode和d同伴。我什至试图遵循本教程（ https ：//wiki.helsinki.fi/display/HUGG/Installing+the+GNU+compilers+on+Mac+OS+X ），但没有帮助。 （至少当我尝试使用text mate进行编译时）

I get it that my compiler is not using C++11 feature, but I do not know how I can update the compiler. I should let know that I am using a MacOSX (10.10 Yosemite) and tried to compile with xCode and textmate. I even tried to follow this tutorial(https://wiki.helsinki.fi/display/HUGG/Installing+the+GNU+compilers+on+Mac+OS+X), but it did not helped. (At least when I tried to compile with text mate)

我希望您能够为我提供帮助。 ：（

I hope you are able to help me. :(

推荐答案

您需要做的是打开项目设置->构建设置，并将C ++语言方言设置为C ++。 11和C ++标准库到libc ++（支持C ++ 11的LLVM C ++标准库）。

What you need to do is open the project settings -> Build Settings and set C++ Language Dialect to C++11 and the C++ Standard Library to libc++ (LLVM C++ standard library with C++11 support).

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