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string - C++ Users
Strings are objects that represent sequences of characters. The standard string class provides support for such objects with an interface similar to that of a standard container of bytes, but adding features specifically designed to operate with strings of single-byte characters. The string class is an instantiation of the basic_string class template that uses char (i.e., bytes) as its ...
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std:: basic_string - Reference
The class template basic_string stores and manipulates sequences of character-like objects, which are non-array objects of TrivialType and StandardLayoutType.The class is dependent neither on the character type nor on the nature of operations on that type. The definitions of the operations are supplied via the Traits template parameter - a specialization of std::char_traits or a compatible ...
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Strings library - cppreference.com
String classes (std::string etc.) The class template std::basic_string generalizes how sequences of characters are manipulated and stored. String creation, manipulation, and destruction are all handled by a convenient set of class methods and related functions. Several specializations of std::basic_string are provided for commonly-used types:
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<cstring> (string.h) - C++ Users
Concatenate strings (function) strncat Append characters from string (function) Comparison: memcmp Compare two blocks of memory (function) strcmp Compare two strings (function) strcoll Compare two strings using locale (function) strncmp Compare characters of two strings (function) strxfrm Transform string using locale (function) Searching: memchr
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<string> - C++ Users
string String class (class) u16string String of 16-bit characters (class) u32string String of 32-bit characters (class) wstring Wide string (class) Functions Convert from strings stoi Convert string to integer (function template) stol Convert string to long int (function template) stoul Convert string to unsigned integer (function template) stoll
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C++ string Library Reference (string functions) - W3Schools
Returns the length of a string: size() Alias of length(). Returns the length of a string: max_size() Returns the maximum length of a string: empty() Checks wheter a string is empty or not: append() Appends a string (or a part of a string) to another string: substr() Returns a part of a string from a start index (position) and length: find()
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basic_string - C++ Reference - cplusplus.com
The basic_string is the generalization of class string for any character type (see string for a description). Template parameters charT Character type. The string is formed by a sequence of characters of this type. This shall be a non-array POD type. traits Character traits class that defines essential properties of the characters used by basic_string objects (see char_traits).
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string - C++ Users
Length of the substring to be copied (if the string is shorter, as many characters as possible are copied). A value of string::npos indicates all characters until the end of str. s Pointer to an array of characters (such as a c-string). n Number of characters to copy. c Character to fill the string with.
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【C++】【STL】(一)String的用法 - 腾讯云
STL库中String类提供多种构造函数及操作方法,包括插入、拼接、删除、查找、比较、交换、替换等,支持元素访问、子字符串提取及与C风格字符串转换,还涉及大小和容量管理,以及输入输出流操作。
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string::substr - C++ Reference - cplusplus.com
Complexity Unspecified, but generally linear in the length of the returned object. Iterator validity No changes. Data races The object is accessed. Exception safety Strong guarantee: if an exception is thrown, there are no changes in the string. If pos is greater than the string length, an out_of_range exception is thrown. A bad_alloc exception is thrown if the function needs to allocate ...