The Linux Manuals (man pages) document is an important part of Linux documents. Linux Manuals are organized as several sections. Each section has a group of commands for a specific area in Linux usage, administration or development.
std::strstream::freeze – std::strstream::freeze Synopsis void freeze(bool flag = true); If the stream is using a dynamically-allocated array for output, disables (flag == true) or enables (flag == false) automatic allocation/deallocation of the buffer. Effectively calls rdbuf()->freeze(flag) Notes After a call to str(), dynamic streams become frozen automatically. A call to freeze(false) is required before exiting…
std::strstream – std::strstream Synopsis Defined in header <strstream> class strstream : public std::iostream (deprecated in C++98) The class strstream implements input and output operations on array-backed streams. It essentially wraps a raw array I/O device implementation (std::strstreambuf) into the higher-level interface of std::basic_iostream. The typical implementation of strstream holds only one non-derived data member: an…
std::strstr – std::strstr Synopsis Defined in header<cstring> const char *strstr(const char *str, const char *target); char *strstr(char *str, const char *target); Finds the first occurrence of the byte string target in the byte string pointed to by str. The terminating null characters are not compared. Parameters str – pointer to the null-terminated byte string to…
std::strspn – std::strspn Synopsis Defined in header<cstring> size_t strspn(const char *dest, const char *src); Returns the length of the maximum initial segment (span) of the byte string pointed to by dest, that consists of only the characters found in byte string pointed to by src. Parameters dest – pointer to the null-terminated byte string to…
std::strrchr – std::strrchr Synopsis Defined in header<cstring> const char *strrchr(const char *str, int ch); char *strrchr(char *str, int ch); Finds the last occurrence of ch (after conversion to char) in the byte string pointed to by str. The terminating null character is considered to be a part of the string and can be found if…
std::strpbrk – std::strpbrk Synopsis Defined in header<cstring> const char *strpbrk(const char *dest, const char *breakset); char *strpbrk(char *dest, const char *breakset); Scans the null-terminated byte string pointed to by dest for any character from the null-terminated byte string pointed to by breakset, and returns a pointer to that character. Parameters dest – pointer to the…
std::strong_ordering – std::strong_ordering Synopsis Defined in header <compare> class strong_ordering; (since C++20) The class type std::strong_ordering is the result type of a three-way_comparison that * admits all six relational operators (==, !=, <, <=, >, >=) * implies substitutability: if a is equivalent to b, f(a) is also equivalent to f(b), where f denotes a…
std::strong_order – std::strong_order Synopsis Defined in header<compare> template <class T> (since C++ 20) constexpr std::strong_ordering strong_order(const T &a, const T &b); Compares two values using 3-way comparison and produces a result of type std::strong_ordering Specifically, * First, if std::numeric_limits<T>::is_iec559 is true, performs the ISO/IEC/IEEE 60559 totalOrder comparison of floating-point values and returns that result as…
std::strong_equality – std::strong_equality Synopsis Defined in header <compare> class strong_equality; (since C++20) The class type std::strong_equality is the result type of a three-way_comparison that * admits only equality and inequality comparisons (no less-than/greater-than) * implies substitutability: if a is equivalent to b, f(a) is also equivalent to f(b), where f denotes a function that reads…
std::strong_equal – std::strong_equal Synopsis Defined in header<compare> template <class T> (since C++ 20) constexpr std::strong_equality strong_equal(const T &a, const T &b); Compares two values using 3-way comparison and produces a result of type std::strong_equality Specifically, * If the expression a <=> b is well-formed and its result is convertible to std::strong_equality, returns that result. *…
std::strncpy – std::strncpy Synopsis Defined in header<cstring> char *strncpy(char *dest, const char *src, std::size_t count); Copies at most count characters of the byte string pointed to by src (including the terminating null character) to character array pointed to by dest. If count is reached before the entire string src was copied, the resulting character array…
std::strncmp – std::strncmp Synopsis Defined in header<cstring> int strncmp(const char *lhs, const char *rhs, size_t count); Compares at most count characters of two null-terminated byte strings. The comparison is done lexicographically. The sign of the result is the sign of the difference between the values of the first pair of characters (both interpreted as unsigned…
std::strncat – std::strncat Synopsis Defined in header<cstring> char *strncat(char *dest, const char *src, std::size_t count); Appends a byte string pointed to by src to a byte string pointed to by dest. At most count characters are copied. The resulting byte string is null-terminated. The destination byte string must have enough space for the contents of…
std::strlen – std::strlen Synopsis Defined in header<cstring> std::size_t strlen(const char *str); Returns the length of the given byte string, that is, the number of characters in a character array whose first element is pointed to by str up to and not including the first null character. The behavior is undefined if there is no null…
std::basic_stringstream::swap – std::basic_stringstream::swap Synopsis void swap(basic_stringstream &other); (since C++ 11) Exchanges the state of the stream with those of other. This is done by callingbasic_iostream<CharT, Traits>::swap(other) and rdbuf()->swap(*other.rdbuf()). Parameters other – stream to exchange the state with Return value (none) Example This section is incomplete Reason: no example See also operator= moves the string stream…
std::basic_stringstream::rdbuf – std::basic_stringstream::rdbuf Synopsis std::basic_stringbuf<CharT, Traits, Allocator> *rdbuf() const; Returns pointer to the underlying raw string device object. Parameters (none) Return value Pointer to the underlying raw string device. Example This section is incomplete Reason: no example
std::basic_stringstream::operator= – std::basic_stringstream::operator= Synopsis basic_stringstream& operator=( basic_stringstream&& other ); (since C++11) Move assigns the string stream other to *this, effectively move-assigning both the std::basic_iostream base class and the associated std::basic_stringbuf. Note that the base class move assignment swaps all stream state variables (except for rdbuf) between *this and other. Parameters other – string stream to…
std::basic_stringstream – std::basic_stringstream Synopsis Defined in header <sstream> template< class CharT, (until C++11) class Traits = std::char_traits<CharT> > class basic_stringstream; template< class CharT, class Traits = std::char_traits<CharT>, (since C++11) class Allocator = std::allocator<CharT> > class basic_stringstream; The class template std::basic_stringstream implements input/output operations on memory (std::basic_string) based streams. It essentially wraps a raw string device…
std::basic_stringbuf – std::basic_stringbuf Synopsis Defined in header <sstream> template< class CharT, class Traits = std::char_traits<CharT>, class Allocator = std::allocator<CharT> > class basic_stringbuf : public std::basic_streambuf<CharT, Traits> std::basic_stringbuf is a std::basic_streambuf whose associated character sequence is a memory-resident sequence of arbitrary characters, which can be initialized from or made available as an instance of std::basic_string. Typical…
std::basic_string – std::basic_string Synopsis Defined in header <string> template< class CharT, class Traits = std::char_traits<CharT>, (1) class Allocator = std::allocator<CharT> > class basic_string; namespace pmr { template <class CharT, class Traits = std::char_traits<CharT>> using basic_string = std::basic_string< CharT, Traits, (2) (since C++17) std::polymorphic_allocator<CharT>> } The class template basic_string stores and manipulates sequences of char-like objects,…