CODEWITHSUNDEEP
c++c++11
Mike E
Mike E

Reputation: 874

C++11: intptr_t/int_ptr_t, intmax_t/int_max_t?

I'm doing a bit of reading on c++11 and I've noticed a couple things about int type names. Right now, apparently the spec is only available by paying for it but there is an early draft from February available at http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2011/n3242.pdf

However I noticed on a website which is cited on the c++11 wikipedia page, en.cppreference.com, a discrepency in a couple of the standard integer types.

The page at http://en.cppreference.com/w/cpp/types/integer mentions various fixed-width integer types, and also int_max_t and int_ptr_t. However the spec linked above uses intmax_t and intptr_t (without the middle underscore) which I am used to and which already exists in, for example, MS's crtdefs.h, and boost's cstdint.hpp. Is this likely just a typo on the website, did this change in the spec since the February draft?

Edit Removed stuff about the header files, it was irrelevant.

Upvotes: 3

Views: 3422

Answers (1)

ildjarn
ildjarn

Reputation: 62985

Yes, it's just a typo on the website. From the FDIS, §18.4.1 (Header <cstdint> synopsis):

namespace std {
     ...
   typedef signed integer type intmax_t;
   typedef signed integer type intptr_t; //optional
     ...
   typedef unsigned integer type uintmax_t;
   typedef unsigned integer type uintptr_t; //optional
} //namespace std

Upvotes: 3

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