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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
125 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 '17 at 10:56
stackoverflow.com

119 votes

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

c++ c++11 constructor default move-semantics asked Aug 17 '13 at 15:41
stackoverflow.com

68 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 '17 at 11:55
stackoverflow.com

62 votes

Is there a more efficient implementation for a bidirectional map?

c++ c++11 data-structures map bimap asked Feb 13 '14 at 16:48
stackoverflow.com

53 votes

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

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

52 votes

2D Platformer AABB collision problems

2d c# collision-detection physics platformer asked Jul 4 '11 at 20:35
gamedev.stackexchange.com

49 votes

Capturing perfectly-forwarded variable in lambda

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

39 votes

Overloading multiple function objects by reference

c++ overloading template-meta-programming c++1z function-object asked Mar 23 '17 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 '17 at 11:40
stackoverflow.com

38 votes

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

c++ lambda this language-lawyer c++14 asked Aug 19 '15 at 14:03
stackoverflow.com

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

109
Advantages of pass-by-value and std::move over pass-by-reference
stackoverflow.com

84
Malloc vs New for Primitives
stackoverflow.com

77
Is there any point in using `override` when overriding a pure virtual function?
stackoverflow.com

65
Exception in Destructor C++
stackoverflow.com

62
What does std::vector look like in memory?
stackoverflow.com

52
“constexpr if” vs “if” with optimizations - why is “constexpr” needed?
stackoverflow.com

46
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

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

40
C++17: Keep only some members when tuple unpacking
stackoverflow.com

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

34
What is `constinit` in C++20?
stackoverflow.com

34
C++ Zero-Initialization
stackoverflow.com

34
Why are there so many specializations of std::swap?
stackoverflow.com

31
Is there a reason to use std::conjunction/std::disjunction instead of a fold expression over “&&”/“||”?
stackoverflow.com

31
How to write a size() function that works on any type of collection objects?
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29
Why isn't this unused variable optimised away?
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29
Does async always use another thread/core/process in C++?
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29
Pointer to reference
stackoverflow.com

28
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

28
Why std::unique_ptr does not permit type inference?
stackoverflow.com

26
Using erase-remove_if idiom
stackoverflow.com

24
C++ variadic template with doubles
stackoverflow.com

21
Conditional ? : operator with class constructor
stackoverflow.com

20
Why is an array's dimension part of its type?
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20
Can I partial compile a template function in C++
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20
Can you omit the return type in main function?
stackoverflow.com

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