|
- 既然有了 std::vector，那 std::array 的意义在哪里？ - 知乎
既然有了 std::vector，那 std::array 的意义在哪里？ 相比而言，array不能变长，各种功能也不如vector。 如果为了追求效率让数据存在栈上，为什么不直接用内置数组呢？ 而且这种效率差基本可以忽略不计吧… 显示全部 关注者 142
- What are the advantages of using std::array over C-style arrays?
40 std::array is designed as zero-overhead wrapper for C arrays that gives it the "normal" value like semantics of the other C++ containers You should not notice any difference in runtime performance while you still get to enjoy the extra features Using std::array instead of int[] style arrays is a good idea if you have C++11 or boost at hand
- c++ - Default initialization of std::array? - Stack Overflow
std::array has no user-provided default constructor, so it gets zero-initialized It has an implicitly-defined default constructor, but it is trivial, so it is never default-initialized
- How do you declare a pointer to a C++11 std::array?
Depending on a variable, I need to select the SeedPositions32 or SeedPositions16 array for further use I thought a pointer would allow this but I can't seed to make it work How do you declare a p
- Initializing a std::array with all elements having the same value
59 I need to initialize all elements of a std::array with a constant value, like it can be done with std::vector
- more modern way of looping through C++ arrays - Stack Overflow
You may ask, how is std::array better than the ol' C array? The answer is that it has the additional safety and features of other standard library containers, mostly closely resembling std::vector
- How do you deduce the size of a std::array? - Stack Overflow
This code works because the type of the actual argument is specified as std::array, not because of the auto With this answer's main the OP's definition of b would also work
- C++11: Correct std::array initialization? - Stack Overflow
That's aggregate initialization std::array contains a built-in array, which can be initialized via an initializer list, which is what the inner set is The outer set is for aggregate initialization
|
|
|