问题描述
与传统$ C $工作c，我问自己，我应该取代固定大小的C风格的数组新的std ::数组？ E.克
Working with legacy code, I asked myself should I replace fixed sized C-style arrays with the new std::array? E. g.
static const int TABLE_SIZE = 64;
double table[TABLE_SIZE];
替换为
std::array<double, TABLE_SIZE> table;
当我看到使用的std ::可变大小的数组向量的好处，我不认为他们有固定的大小。 table.size（）反正是已知的，的std ::开始（）的std ::结束（）免费功能可用于STL的算法使用C风格的数组了。因此，除了被越来越符合标准，我错过更多的好处？是值得的工作，以全部替换还是被认为是最好的做法？
While I see the benefits from using std::vector for variable size arrays, I don't see them with fixed size. table.size() is known anyways, std::begin(), std::end() as free functions can be used for STL-algorithms with C-style arrays too. So besides being more standard compliant, do I miss more benefits? Is it worth the work to replace all occurrences or is it considered to be best practice?
推荐答案
据我所知的std ::阵列只是提供了一个更好的STL一样的界面来处理，而不是普通的C -arrays。在性能和功能方面的两个选择归结为pretty大致相同，但的std ::阵列可以作为一个标准集装箱。
AFAIK std::array just provides a nicer STL-like interface to deal with rather than normal C-arrays. In terms of performances and capabilities the two choices boil down to be pretty much the same but std::array can be used as a standard container.
另一个特点：它们可能像对待因为它们提供的元组一样访问功能
Another feature: they might be treated like tuples since they provide tuple-like access functions.
最后但并非最不重要的user2079303注意：如果你的code将是由程序员新手使用，它可以prevent路过时，它作为一个参数数组腐烂的过程
Last but not the least as user2079303 noticed: if your code is going to be used by novice programmers, it can prevent the array decaying process when passing it as an argument.
如果你想知道，如果你应该替换的std ::阵列的所有C风格的数组，答案是肯定的，如果你要开发一些新可用的功能和/或重写一些你的code到利用这些功能的优势。如果你只是简单的替换C-阵列，的std ::阵列（不接触任何东西），它可能不是值得的。
If you're wondering if you should just replace all your C-style arrays with std::arrays, the answer is yes if you're going to exploit some of the newly available features and/or rewrite some of your code to take advantage of those capabilities. If you're just plain substituting C-arrays with std::arrays (without touching anything else) it might not be worth it.
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