问题
C99 still isn't supported by many compilers, and much of the focus is now on C++, and its upcoming standard C++1x.
I'm curious as to what C will "get" in its next standard, when it will get it, and how it will keep C competitive. C and C++ are known to feed on one another's improvements, will C be feeding on the C++1x standard?
What can I look forward to in C's future?
回答1:
The ISO/IEC 9899:2011 standard, aka C11, was published in December 2011.
The latest draft is N1570; I'm not aware of any differences between it and the final standard. There's already a Technical Corrigendum fixing an oversight in the specification of __STDC_VERSION__ (now 201112L) and the optional __STDC_LIB_EXT1__ (now 201112L).
回答2:
I was typing a list of of features, but noticed the Wikipedia page on C1X has a pretty complete listing of all proposed changes.
On the ISO C working group posts 'after meeting' mailings on their website. One of the more interesting is this Editor's Report.
回答3:
Here's a summary from the Wikipedia page:
- Alignment specification (
_Alignspecifier,alignofoperator,aligned_allocfunction) - Multithreading support (
_Thread_localstorage-class specifier,<threads.h>header including thread creation/management functions, mutex, condition variable and thread-specific storage functionality) - Improved Unicode support (
char16_tandchar32_ttypes for storing UTF-16/UTF-32 encoded data, including the corresponding u and U string literal prefixes and conversion functions in<uchar.h>) - Removal of the
getsfunction - Bounds-checking interfaces (Annex K)
- Analyzability features (Annex L)
回答4:
I looks like gcc as of 4.6 is starting to look at C1x. They claim to have:
- Static assertions (_Static_assert keyword)
- Typedef redefinition
- New macros in <float.h>
- Anonymous structures and unions
回答5:
Probably the best place to find the current status would be to look at the latest draft of the new version of the C standard. Warning: though it's coming directly from the committee, the server behind that link isn't always the most responsive...
来源：https://stackoverflow.com/questions/3341001/c1x-when-will-it-land-what-to-expect