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Vittorio Romeo

Italy

http://vittorioromeo.info

I write code, lift weights and play games. I also like everything sci-fi.

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Top Questions
143 votes

Is a `=default` move constructor equivalent to a member-wise move constructor?

c++ c++11 constructor default move-semantics asked Aug 17, 2013 at 15:41
stackoverflow.com

126 votes

Lambda capture and parameter with same name - who shadows the other? (clang vs gcc)

c++ c++11 lambda language-lawyer shadowing asked Feb 7, 2017 at 10:56
stackoverflow.com

78 votes

Is there a more efficient implementation for a bidirectional map?

c++ c++11 data-structures map bimap asked Feb 13, 2014 at 16:48
stackoverflow.com

71 votes

Why is the construction of std::optional<int> more expensive than a std::pair<int, bool>?

c++ performance assembly x86-64 c++1z asked Oct 3, 2017 at 11:55
stackoverflow.com

67 votes

Capturing perfectly-forwarded variable in lambda

c++ c++11 lambda c++14 perfect-forwarding asked Nov 9, 2014 at 18:00
stackoverflow.com

55 votes

Does a C++11 range-based for loop condition get evaluated every cycle?

c++ performance for-loop c++11 foreach asked Apr 2, 2013 at 13:56
stackoverflow.com

52 votes

2D Platformer AABB collision problems

c# 2d collision-detection physics aabb asked Jul 4, 2011 at 20:35
gamedev.stackexchange.com

40 votes

Calling `this` member function from generic lambda - clang vs gcc

c++ lambda this language-lawyer c++14 asked Aug 19, 2015 at 14:03
stackoverflow.com

39 votes

Overloading multiple function objects by reference

c++ overloading template-meta-programming c++1z function-object asked Mar 23, 2017 at 21:16
stackoverflow.com

38 votes

Why are non-placement `new` and `delete` built into the language and not just regular functions?

c++ new-operator delete-operator asked Jul 7, 2017 at 11:40
stackoverflow.com

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Top Answers
211
In C++, am I paying for what I am not eating?
stackoverflow.com

194
Advantages of pass-by-value and std::move over pass-by-reference
stackoverflow.com

88
Malloc vs New for Primitives
stackoverflow.com

82
Is there any point in using `override` when overriding a pure virtual function?
stackoverflow.com

76
What does std::vector look like in memory?
stackoverflow.com

75
What is `constinit` in C++20?
stackoverflow.com

67
Exception in Destructor C++
stackoverflow.com

55
"constexpr if" vs "if" with optimizations - why is "constexpr" needed?
stackoverflow.com

53
Vary range of uniform_int_distribution
stackoverflow.com

46
Is "enum class" a class type in C++?
stackoverflow.com

45
Reverse iterator returns garbage when optimized
stackoverflow.com

44
C++17: Keep only some members when tuple unpacking
stackoverflow.com

42
Using erase-remove_if idiom
stackoverflow.com

40
C++ Zero-Initialization
stackoverflow.com

40
Why am I allowed to create multiple unique pointers from a single object?
stackoverflow.com

39
std::move doesn't work when the derived class' destructor is specified
stackoverflow.com

37
Is there a reason to use std::conjunction/std::disjunction instead of a fold expression over "&&"/"||"?
stackoverflow.com

35
Why are there so many specializations of std::swap?
stackoverflow.com

31
Does async always use another thread/core/process in C++?
stackoverflow.com

31
How to write a size() function that works on any type of collection objects?
stackoverflow.com

31
Pointer to reference
stackoverflow.com

29
Why isn't this unused variable optimised away?
stackoverflow.com

29
No matching function for call std::forward(const std::string &) with variadic arguments
stackoverflow.com

29
Why doesn't std::lock_guard/std::unique_lock use type erasure?
stackoverflow.com

28
Unable to create unordered_set with lambda function
stackoverflow.com

26
Why does std::unique_ptr not permit type inference?
stackoverflow.com

25
C++ variadic template with doubles
stackoverflow.com

22
Segmentation fault with std::function and lambda parameters
stackoverflow.com

21
What are std::vector deduction guides in C++17?
stackoverflow.com

21
Conditional ? : operator with class constructor
stackoverflow.com

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