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What are the differences between concepts and template constraints?
I want to know what are the semantic differences between the C++ full concepts proposal and template constraints (for instance, constraints as appeared in Dlang or the new concepts-lite proposal for C++1y ).
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Where is Erlang used and why? [closed]
...re is also this article from Richard Jones. He rewrote an application from C++ to erlang: 75% fewer lines in erlang.
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Does Java support default parameter values?
...amp;& p[1] != null ? ((Integer)p[1]).intValue() : 42;
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This matches C++ syntax, which only allows defaulted parameters at the end of the parameter list.
Beyond syntax, there is a difference where this has run time type checking for passed defaultable parameters and C++ type checks them dur...
What's the difference between struct and class in .NET?
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Is this all valid for C++ as well?
– Koray Tugay
Nov 24 '12 at 21:10
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Where are static variables stored in C and C++?
...an 0". Because there's no such thing as "non initialized" static data in C/C++. Everything static is zero-initialized by default.
– AnT
Jun 19 '10 at 9:33
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Is there any way to enforce typing on NSArray, NSMutableArray, etc.?
...ommon question for people transitioning from strongly type languages (like C++ or Java) to more weakly or dynamically typed languages like Python, Ruby, or Objective-C. In Objective-C, most objects inherit from NSObject (type id) (the rest inherit from an other root class such as NSProxy and can als...
Why can't I use switch statement on a String?
... only be compiled to a series of if() statements.
For that reason C & C++ only allow switches on integer types, since it was pointless with other types.
The designers of C# decided that the style was important, even if there was no advantage.
The designers of Java apparently thought like the...
std::string length() and size() member functions
...length and #size as synonyms for the number of items in arrays and hashes (C++ only does it for strings).
Minimalists and people who believe "there ought to be one, and ideally only one, obvious way to do it" (as the Zen of Python recites) will, I guess, mostly agree with your doubts, @Naveen, whil...
How to emulate C array initialization “int arr[] = { e1, e2, e3, … }” behaviour with std::array?
...ue (which is also legal but not required). In practice, I would expect any C++ compiler to be able to optimize that such that it's as fast as direct initialization.
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Unmangling the result of std::type_info::name
...ation about the calling function. This should be relatively easy, standard C++ has a type_info class. This contains the name of the typeid'd class/function/etc. but it's mangled. It's not very useful. I.e. typeid(std::vector<int>).name() returns St6vectorIiSaIiEE .
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