inplace_vector<int, 6> v(6, 9); std::println("起初, v = {}", v); v.resize(2); std::println("resize(2) 后, v = {}", v); v.resize(4); std::println("resize(4) 后, v = {}", v); v.resize(6, -1); std::println(...
std::inplace_vector<T,N>:: 创建账户 std::inplace_vector<T,N>::reserve staticconstexprvoidreserve(size_type new_cap); (C++26 起) 不做任何事,但可能抛出std::bad_alloc。因为std::inplace_vector<T, N>是固定容量的容器,忽略减少容量(即内部存储大小)的请求。
The specializationstd::inplace_vector<T,0>isTriviallyCopyableand is empty.std::is_trivially_default_constructible_v<std::inplace_vector<T,0>>is alsotrue. Any member function ofstd::inplace_vector<T, N>that would cause insertion beyond the capacityNthrowsstd::bad_alloc. ...
#include <inplace_vector> #include <print> int main() { std::inplace_vector<int, 3> a1{1, 2, 3}, a2{4, 5, 6}; auto i1 = a1.begin(); auto i2 = a2.begin(); int& r1 = a1[1]; int& r2 = a2[1]; auto print_them_all = [&](auto rem) { std::println("{}a1 ...
after总之就是 把list 的操作 和 vector的操作 API 挑好用的 合起来它的数据可以直接inplace存储。
总之就是 把list 的操作 和 vector的操作 API 挑好用的 合起来 它的数据可以直接inplace存储。如...
固定大小的矩阵和和向量 #include #include Eigen/Core> using namespace Eigen; using namespace std;...访问元素 Eigen支持以下的读/写元素语法: matrix(i,j); vector(i) vector[i] vector.x() ...
std::vector<int> v = ???; // pseudo vector to be used to access the raw data std::sort(v.begin(), v.end()); // sort raw data in place for (int i = 0; i < 5; i++) { std::cout << data[i] << "\n"; // display sorted raw data }...
(Iter first, 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};...
(Iter first, 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};...