WebJun 9, 2013 · You can get that from an std::string via the c_str () method: printf ("%s% 38s\n", "Filename:", filename.c_str ()); As an aside, note that if you don't intend to modify or copy the input string, you should pass by const reference: void displayinfo (const string& filename) { .... } Share Improve this answer Follow edited Jun 9, 2013 at 12:09 Webstd::basic_string Member functions basic_string::basic_string basic_string::~basic_string basic_string::operator= basic_string::assign basic_string::assign_range (C++23) basic_string::get_allocator Element access basic_string::at basic_string::operator[] basic_string::front (C++11) basic_string::back (C++11) basic_string::data basic_string::c_str

std::basic_string_view - C++中文 - API参考文档 - API Ref

WebThe character container type used in the implementation of class template basic_regex. X::size_type An unsigned integer type, capable of holding the length of a null-terminated string of charT's. X::string_type std::basic_string or std::vector Webstd::basic_string_view 类模板 basic_string_view 描述一个能指代常量连续仿 char 对象序列的对象，序列首元素在零位置。 典型的实现仅保有二个成员：指向常 CharT 的指针和大小。 提供数种对常用字符类型的 typedef ： 模板形参 成员类型 注解： iterator 与 const_iterator 是同一类型，因为 string_view 是到常字符序列中的视图。 容器 (Container) 的迭代器类型上 … milo shortland street

c++ - std::string to char* - Stack Overflow

Webstd:: string ::string C++98 C++11 Construct string object Constructs a string object, initializing its value depending on the constructor version used: (1) empty string constructor (default constructor) Constructs an empty string, with a length of zero characters. (2) copy constructor Constructs a copy of str. (3) substring constructor Webstd::basic_string提供了大量的字符串操作函数，如比较、连接、搜索、替换、获得子串等。 并可与C语言风格字符串双向转换。 std::basic_string属于C++ STL容器类，用户自定义的类也可以作为它的模板参数，因此也适用C++ STL Algorithm库。 string本质上是以字符作为元素的vector特化版本；不存在0字符结尾这个概念，能装入'\0'这种数据。 string类 … Webwchar_t*. const_pointer. const wchar_t*. iterator. a random access iterator to wchar_t (convertible ... milosh on seinfeld