CODEWITHSUNDEEP
c++arraysc++11
Tasdik Rahman
Tasdik Rahman

Reputation: 2340

Is "array" a keyword under c++11 standards?

While using "array" as an identifier Codeblocks highlighted it like the other keywords. I searched it up in Why is "array" marked as a reserved word in Visual-C++?

But the answers were outdated. If yes, how is it used ?

Upvotes: 0

Views: 1226

Answers (4)

Deduplicator
Deduplicator

Reputation: 45674

No, array is not a keyword.

Still, there is a C++11 standard-library type: std::array, a fixed-length array container.

Here a list of the keywords from the C++1y draft:

alignas    continue     friend    register         true
alignof    decltype     goto      reinterpret_cast try
asm        default      if        return           typedef
auto       delete       inline    short            typeid
bool       do           int       signed           typename
break      double       long      sizeof           union
case       dynamic_cast mutable   static           unsigned
catch      else         namespace static_assert    using
char       enum         new       static_cast      virtual
char16_t   explicit     noexcept  struct           void
char32_t   export       nullptr   switch           volatile
class      extern       operator  template         wchar_t
const      false        private   this             while
constexpr  float        protected thread_local
const_cast for          public    throw

These alternative representations (whose very existence I dislike, but that's just me) are not keywords though still reserved:

and    and_eq bitand bitor compl  not
not_eq or     or_eq  xor   xor_eq

Contextual keywords (override control, put at the end of the function declaration in a class (new not listed because already a keyword))

final   override

Upvotes: 4

quantdev
quantdev

Reputation: 23813

C++ Keywords are listed in the C++ standard, section § 2.13.

array is not listed there, so it isn't.

Note:

  • std::array is a standard type, but not a keyword.
  • array is a valid identifier, but it certainly is discouraged because of the previous point.

Upvotes: 3

Basile Starynkevitch
Basile Starynkevitch

Reputation: 1

array is not a keyword, but the C++11 standard defines its STL with a std::array template container. You should prefer

 std::array<int,5> tab;

instead of int tab[5]; because std::array have interesting functions and works better with other parts of the STL library.

Since it is a standard container, I would advise you to avoid using the array (or vector, because of std::vector, etc...) identifier in your own code (especially in reusable headers), to avoid future potential conflicts with <array> header, and also for readability reasons. But in principle you could define your own array but I don't recommend that.

Upvotes: 4

Christophe
Christophe

Reputation: 73446

array is a standard container, as you can see here.

It doesn't belong to the keywords, but it's part of the standard library.

Upvotes: 3

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