What's your favorite C++0x feature? [closed]

Answer 1

decltype :-) and lambdas

Answer 2

The for (auto x : collection) iteration syntax is way cool I think... it literally cuts down the size of many loop headers by a factor of 4 or more (iterator types are often ... verbose)!

It also means you don't have to dereference the iterator in the body of the loop (with a traditional iterator loop, you always have to use *i or i->... to get the value of the element, but here you can just use x), which in some cases makes the code look much nicer.

Answer 3

I can't decide between Null Pointer Type, Tuple Types, or Regex. 'Foreach' is up there too. 'Smart Pointers' goes without saying... :-)

Basically, I'm really looking forward to the update.

Personally I think heavy use of the null pointer type is going to catch a lot of bugs. Tuples are great for dealing with relational data. Lots of cool stuff.

Answer 4

I like constexpr especially in conjunction with variadic templates and user defined literals we can finally have binary literals and lots of other goodies.

obj.bitmask |= 00001010B; 

Answer 5

Hands down concepts for me. But initializer lists, lambdas, and variadic templates are a close second.

Answer 6

unicode, multithreading, hash_tables, smart pointers and regular expressions.

ps : Wonder why they just cant do a gr8 code review and accept all the boost and tr1 libs into the standards and make life easier for everyone. All they would then have to solve is agreeing on a working optional garbage collection model.