在C ++ 11中初始化结构的C ++ std :: array [英] initialise a C++ std::array of struct in C++11

问题描述

我已经读过类似的问题，但是没有人知道为什么我有一个结构

I've read the similar questions, but does anyone know why if I have a struct

struct ArabicRoman {
    char roman;
    int arabic;
};

我可以通过以下方式初始化C ++ std :: array :

I can initialise a C++ std::array in the following way:

ArabicRoman M({'M', 1000});
ArabicRoman D({'D', 500});
array<ArabicRoman, 2> const SYMBOLS({ M, D });

我可以通过以下方式初始化C样式数组:

I can initialise a C-style array in the following way:

ArabicRoman const SYMBOLS[]({ {'M', 1000}, {'D', 500} });

但是，以下内容无法编译:

However, the following is not compiling:

array<ArabicRoman, 2> const SYMBOLS({ {'M', 1000}, {'D', 500} });

是否有任何初始化C ++样式结构数组的解决方法?

any workaround to initialise C++ style arrays of structs?

推荐答案

您需要用大括号替换括号:

You need to replaces parentheses with braces:

std::array<ArabicRoman, 2> const SYMBOLS {{ {'M', 1000}, {'D', 500} }};
                                         ^                           ^

实时演示

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