AI代码解释 // 使用typedef进行类型别名定义typedefintInteger;Integer a=10;// 等价于 int a = 10;// 使用using进行类型别名定义usingIntegerAlias=int;IntegerAlias b=20;// 等价于 int b = 20;// 复杂类型的别名usingComplexType=std::vector<std::shared_ptr<int>>;ComplexType vec;// 等价于 std::ve...
Tuple<int, std::string> t(42, "hello"); std::cout << t.get<0>() << ", " << t.get<1>() << std::endl; return 0; } 在这个例子中,我们使用using别名模板实现了一个类模板Tuple,用于表示一个元组。我们定义了Type和ConstType两个别名模板,用于获取元组中第N个元素的类型和常量类型。同时...
AI代码解释 template<typenameT>classBase{public:Base(){};Base(T_v):value(_v){cout<<value<<endl;};private:Tvalue{};};template<typename...Types>classSubClass:privateBase<Types>...{public:using Base<Types>::Base...;};intmain(){using SubClassInst=SubClass<int,double,std::string,bool>;Su...
using namespace std; int main() { int key = 10; vector<tuple<int, int>> v; v.reserve(10); v[0] = std::make_tuple(10,11); v[1] = std::make_tuple(20,21); if(v.end() != std::find(v.begin(), v.end(),[key](std::tuple<int,int> t) {return t.get<0> == key...
使用using别名模板实现Tuple类模板表示元组。定义Type和ConstType别名获取元组第N个元素的类型和常量类型。构造函数使用可变模板参数和std::forward实现。get函数获取元组元素，使用std::get实现。总之，using关键字提供灵活方式，在C++中定义别名、模板别名和类型别名，使代码简洁可读。
import dtuple import mx.ODBC.Windows as odbc flist = ["Name", "Num", "LinkText"] descr =dtuple.TupleDescriptor([[n] for n in flist])conn = odbc.connect("HoldenWebSQL") # Connect to a database curs = conn.cursor( ) # Create a cursor sql = """SELECT %s FROM StdPage WHERE...
Showing only tuples. => SELECT get_model_summary(USING PARAMETERS model_name='myModel'); === details === predictor |coefficient|std_err |z_value |p_value ---+---+---+---+--- Intercept | -6.36347 | 3.21390|-1.97998| 0.04771 treatment | ...
Merge LLVM 4.0 Darwin stdenvNixOS/nixpkgs#24294 Closed 16 of 27 tasks complete This was referencedMar 24, 2017 use std::tuple for ValueMap allocator#1289 Merged use std::tuple for ValueMap allocator for 1.11#1290 Merged shlevyclosed this in#1289Mar 26, 2017 ...
<tuple> #include <vector> int main() { auto x = std::vector{4, 2, 3, 1}; auto y = std::array{'A', 'C', 'B', 'D'}; auto xy = std::views::zip(x, y); gfx::timsort(xy, {}, [](const std::tuple<int &,
Rust HashMap from iterator of tuples We can create a HashMap from an iterator of tuples. main.rs use std::collections::HashMap; fn main() { let scores: HashMap<_, _> = [ (String::from("Blue"), 10), (String::from("Yellow"), 50), ...