今天发现使用using namespace chrono; using namespace std;是有先后顺序的。顺序不对编译器会报错 #include <iostream> #include <chrono> using namespace chrono; using namespace std; int main() { milliseconds ms(1000); // 编译错误:不明确的符号 cout << ms.count() << " milliseconds" << endl...
std::literals::chrono_literals::operator""h - cppreference.comen.cppreference.com/w/cpp/chro...
#include <iostream> #include <chrono> using namespace std::chrono; using namespace std; using ull = unsigned long long; ull oddsum = 0; ull evensum = 0; void findeven(ull start, ull end) { for (ull i = start; i <= end; ++i) { if ((i & 1) == ...
#include <chrono> #include <thread> using namespace gr::uhd; using gr::uhd::usrp_block; using gr::uhd::usrp_block_impl; using namespace std::chrono_literals; namespace { 0 comments on commit c6e9d6b Please sign in to comment. Footer...
using namespace std; using namespace std::chrono; using namespace Qv2ray; using namespace Qv2ray::base; using namespace Qv2ray::base::safetype; @@ -144,12 +142,14 @@ namespace Qv2ray // Linux platform directories. list << QString("/usr/share/qv2ray/" + dirName); list << ...
EN本文基本上涵盖了c++11的所有新特性，并有详细代码介绍其用法，对关键知识点做了深入分析，对重要的...
```c++ // / C++关键字:using 1. using指示: 将命名空间所以成员引入当前作用域 例子: / using namespace std; / 2. using声明 a. 将一个特定命名空间成员引入当前作用域 b. 将一个成员从基类引入当前类的作用域 例子: / using s
#include <chrono>#include <iostream> using namespace sycl; // Assuming IntArray is a custom type defined elsewhereusing IntArray = std::vector<int>; const size_t array_size = 1024; // Define your array sizeconst int iter = 10; // Define ...
using Amazon; using Amazon.S3; using Amazon.S3.Model; using System; using System.Threading.Tasks; namespace Amazon.DocSamples.S3 C++ 连接示例 SendResult sendResult = producer.send(msg); stdstd::this_thread::sleep_for(std::chrono::milliseconds(60 * 10000 连接数据库 ::string host; std::str...
Code begins: #include<bits/stdc++.h>usingnamespacestd;constintN=100005;constintMOD=1e9+7;#defineshow(arr){for(autox:arr)cout<<x<<" ";cout<<'\n';}mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());intrandNo(intlower_limit,intupper_limit){returnlower_limit+rng...