The <string> library has many functions that allow you to perform tasks on strings.A list of popular string functions can be found in the table below.FunctionDescription at() Returns an indexed character from a
Traits>&& in_stream, basic_string<CharType, Traits, Allocator>& str, const CharType delimiter); // (2) default delimiter used template <class CharType, class Traits, class Allocator> basic_istream<CharType, Traits>& getline( basic_istream<CharType, Traits>& in_stream, basic_string<CharTy...
<< endl; // First member function: concatenates an object // of type basic_string with an object of type basic_string string s12 = s1 + s2; cout << "The string concatenating s1 & s2 is: " << s12 << endl; // Second & fourth member functions: concatenate an object // of type ...
例如6.59 Other Built-in Functions Provided by GCC给出的例子 :void function_that_never_returns (...
// string_swap.cpp// compile with: /EHsc#include<string>#include<iostream>intmain( ){usingnamespacestd;// Declaring an object of type basic_string<char>strings1("Tweedledee");strings2("Tweedledum");cout<<"Before swapping string s1 and s2:"<<endl;cout<<"The basic_string s1 = "<< s1...
string firstName ="John"; string lastName ="Doe"; string fullName =firstName +" "+ lastName; cout << fullName; Try it Yourself » Append A string in C++ is actually an object, which contain functions that can perform certain operations on strings. For example, you can also concatenat...
* This file exports several useful string functions that are not * included in the C++ string library. */ #ifndef _strlib_h #define _strlib_h #include <iostream> #include <string> /* * Function: integerToString * Usage: string s = integerToString(n); ...
一、string头文件 主要包含一些字符串转换的函数 // sto* NARROW CONVERSIONS // sto* WIDE CONVERSIONS stoi //convert string to int stol //convert string to long stoul //convert string to unsigned long stoll //convert string to long long ...
在FBStringBenchmark.cpp中。 主要类 ::folly::fbstring str("abc")中的 fbstring 为 basic_fbstring的别名 :typedef basic_fbstring<char> fbstring; basicfbstring 在 fbstring_core 提供的接口之上,实现了 std::string 定义的所有接口。里面有一个私有变量 store,默认值即为 fbstring_core。basic_fbstring 的定义...
// string_swap.cpp// compile with: /EHsc#include<string>#include<iostream>intmain( ){usingnamespacestd;// Declaring an object of type basic_string<char>strings1("Tweedledee");strings2("Tweedledum");cout<<"Before swapping string s1 and s2:"<<endl;cout<<"The basic_string s1 = "<< s1...