voidinplace_merge(ExecutionPolicy&&policy, BidirIt first, BidirIt middle, BidirIt last, Compare comp); (4)(C++17 起) 将两个相继的有序范围[first,middle)和[middle,last)归并为一个有序范围[first,last)。 1)如果[first,middle)或[middle,last)没有按operator<(C++20 前)std::less{}(C++20 起)...
GCC支持在编译的时候使用-std选项来选择编译语言的标准。程序本身也是在发展的，不断变化的。以 C 语言...
{Iter middle=first+(last-first)/2;merge_sort(first, middle);merge_sort(middle, last);std::inplace_merge(first, middle, last);}}intmain(){std::vector<int>v{8,2,-2,0,11,11,1,7,3};merge_sort(v.begin(), v.end());for(auton:v){std::cout<<n<<' ';}std::cout<<'\n';...
回答我自己的问题，但它似乎是一个带有预编译头文件的bug。即使预编译头文件为空，也会发生这种情况。...
This patch fixes this problem in post-C++11. libstdc++: Remove const contraint on std::inplace_merge/stable_sort __lower_bound/__upper_bound have been designed as implementationdetails ofrespectively std::lower_bound/std::upper_bound. For this reasonthey are takingthe value argument as a con...
Before C++20 the standard implied it should work, and that's what we've traditionally supported. But maybe we can stop supporting that, if we treat the C++20 change as a DR for previous standards? Hmm. That would make your clean-up a lot simpler. That's what you had in the earlier...
Iter last) { if (last - first > 1) { Iter middle = first + (last - first) / 2; merge_sort(first, middle); merge_sort(middle, last); std::inplace_merge(first, middle, last); } } int main() { std::vector<int> v{8, 2, -2, 0, 11, 11, 1, 7, 3}; merge_sort(v...
I inplace_merge( I first, I middle, S last, Comp comp = {}, Proj proj = {} ); (1) (since C++20) (constexpr since C++26) template< ranges::bidirectional_range R, class Comp = ranges::less, class Proj = std::identity > requires std::sortable<ranges::iterator_t<R>, Comp,...
{Iter middle=first+(last-first)/2;merge_sort(first, middle);merge_sort(middle, last);std::inplace_merge(first, middle, last);}}intmain(){std::vector<int>v{8,2,-2,0,11,11,1,7,3};merge_sort(v.begin(), v.end());for(auton:v){std::cout<<n<<' ';}std::cout<<'\n';...
(The change in r227811 was to *always* malloc a temporary buffer. I wonder if something like this could safely optimize that away as well?) 0001-algorithm-Refactor-__buffered_inplace_merge-NFC.patch Description:Binary data 0002-algorithm-Avoid-moving-initial-subsequences-in-std-i.patch ...