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::fsetpos – std::fsetpos Synopsis Defined in header<cstdio> int fsetpos(std::FILE *stream, const std::fpos_t *pos); Sets the file position indicator and the multibyte parsing state (if any) for the C file stream stream according to the value pointed to by pos. Besides establishing new parse state and position, a call to this function undoes the effects of…
std::fseek – std::fseek Synopsis Defined in header<cstdio> int fseek(std::FILE *stream, long offset, int origin); Sets the file position indicator for the file stream stream. If the stream is open in binary mode, the new position is exactly offset bytes measured from the beginning of the file if origin is SEEK_SET, from the current file position…
std::front_inserter – std::front_inserter Synopsis Defined in header <iterator> template< class Container > (until C++20) std::front_insert_iterator<Container> front_inserter( Container& c ); template< class Container > (since C++20) constexpr std::front_insert_iterator<Container> front_inserter( Container& c ); front_inserter is a convenience function template that constructs a std::front_insert_iterator for the container c with the type deduced from the type of the argument….
std::front_insert_iterator<Container>::operator= – std::front_insert_iterator<Container>::operator= Synopsis front_insert_iterator<Container> &(until C++ 11) operator=(typename Container::const_reference value); front_insert_iterator<Container> &(since C++ 11) operator=(const typename Container::value_type &value); (until C++ 20) constexpr front_insert_iterator<Container> &(1)(since C++ 20) operator=(const typename Container::value_type &value); front_insert_iterator<Container> &(since C++ 11) operator=(typename Container::value_type &&value); (2)(until C++ 20) constexpr front_insert_iterator<Container> &(since C++ 20) operator=(typename Container::value_type &&value); Inserts the given value value to…
std::front_insert_iterator<Container>::front_insert_iterator – std::front_insert_iterator<Container>::front_insert_iterator Synopsis constexpr front_insert_iterator() noexcept = default; (1) (since C++20) explicit front_insert_iterator( Container& c ); (2) (until C++20) constexpr explicit front_insert_iterator( Container& c ); (since C++20) 1) Initializes the underlying pointer to container with nullptr. (since C++20) 2) Initializes the underlying pointer to the container to std::addressof(c). Parameters c – container to initialize…
std::front_insert_iterator – std::front_insert_iterator Synopsis Defined in header<iterator> template <class Container> class front_insert_iterator : public std::iterator<std::output_iterator_tag, (until C++ 17) void, void, void, void> template <class Container> (since C++ 17) class front_insert_iterator; std::front_insert_iterator is an LegacyOutputIterator that prepends elements to a container for which it was constructed. The container’s push_front() member function is called whenever the iterator…
std::from_chars – std::from_chars Synopsis Defined in header<charconv> std::from_chars_result from_chars(const char *first, const char *last, (1)(since C++ 17) /*see below*/ & value, int base = 10); std::from_chars_result from_chars(const char *first, const char *last, float &value, (2)(since C++ 17) std::chars_format fmt = std::chars_format::general); std::from_chars_result from_chars(const char *first, const char *last, double &value, (3)(since C++ 17) std::chars_format fmt…
std::frexp,std::frexpf,std::frexpl – std::frexp,std::frexpf,std::frexpl Synopsis Defined in header <cmath> float frexp ( float arg, int* exp ); float frexpf( float arg, int* exp ); (since C++11) double frexp ( double arg, int* exp ); (1) (2) long double frexp ( long double arg, int* exp ); long double frexpl( long double arg, int* exp ); (3)…
std::freopen – std::freopen Synopsis Defined in header<cstdio> std::FILE *freopen(const char *filename, const char *mode, std::FILE *stream); First, attempts to close the file associated with stream, ignoring any errors. Then, if filename is not null, attempts to open the file specified by filename using mode as if by fopen, and associates that file with the file…
std::free – std::free Synopsis Defined in header<cstdlib> void free(void *ptr); Deallocates the space previously allocated by std::malloc, std::calloc , std::aligned_alloc (since C++17), or std::realloc. If ptr is a null pointer, the function does nothing. The behavior is undefined if the value of ptr does not equal a value returned earlier by std::malloc, std::calloc , std::aligned_alloc…
std::fread – std::fread Synopsis Defined in header<cstdio> std::size_t fread(void *buffer, std::size_t size, std::size_t count, std::FILE *stream); Reads up to count objects into the array buffer from the given input stream stream as if by calling std::fgetc size times for each object, and storing the results, in the order obtained, into the successive positions of buffer,…
std::fputws – std::fputws Synopsis Defined in header<cwchar> int fputws(const wchar_t *str, std::FILE *stream); Writes every wide character from the null-terminated wide string str to the output stream stream, as if by repeatedly executing std::fputwc. The terminating null wide character from str is not written. Parameters str – null-terminated wide string to be written stream –…
std::fputwc – std::fputwc Synopsis Defined in header <cwchar> wint_t fputwc( wchar_t ch, std::FILE* stream ); wint_t putwc( wchar_t ch, std::FILE* stream ); Writes a wide character ch to the given output stream stream. putwc() may be implemented as a macro and may evaluate stream more than once. Parameters ch – wide character to be written…
std::fputs – std::fputs Synopsis Defined in header<cstdio> int fputs(const char *str, std::FILE *stream); Writes every character from the null-terminated string str to the output stream stream, as if by repeatedly executing std::fputc. The terminating null character from str is not written. Parameters str – null-terminated character string to be written stream – output stream Return…
std::fputc,std::putc – std::fputc,std::putc Synopsis Defined in header<cstdio> int fputc(int ch, std::FILE *stream); int putc(int ch, std::FILE *stream); Writes a character ch to the given output stream stream. Internally, the character is converted to unsigned char just before being written. In C, putc() may be implemented as a macro, which is disallowed in C++. Therefore calls…
std::fpos<State>::state – std::fpos<State>::state Synopsis State state() const; (1) void state( State st ); (2) Manages the file position state. 1) Returns the value of the file position state 2) Replaces the file position state with the value of st. For the specializations of std::fpos that are used in the standard library, State is always std::mbstate_t…
std::fpos – std::fpos Synopsis Defined in header <ios> template< class State > class fpos; Specializations of the class template std::fpos identify absolute positions in a stream or in a file. Each object of type fpos holds the byte position in the stream (typically as a private member of type std::streamoff) and the current shift state,…
std::fpclassify – std::fpclassify Synopsis Defined in header <cmath> int fpclassify( float arg ); (1) (since C++11) int fpclassify( double arg ); (2) (since C++11) int fpclassify( long double arg ); (3) (since C++11) int fpclassify( IntegralType arg ); (4) (since C++11) 1-3) Categorizes floating point value arg into the following categories: zero, subnormal, normal, infinite,…
std::forward_list<T,Allocator>::~forward_list – std::forward_list<T,Allocator>::~forward_list Synopsis ~forward_list(); (since C++11) Destructs the container. The destructors of the elements are called and the used storage is deallocated. Note, that if the elements are pointers, the pointed-to objects are not destroyed. Complexity Linear in the size of the container.
std::forward_iterator_tag – Synopsis Inherits std::input_iterator_tag. Inherited by std::bidirectional_iterator_tag. Detailed Description Forward iterators support a superset of input iterator operations. Definition at line 95 of file stl_iterator_base_types.h. Author Generated automatically by Doxygen for libstdc++ from the source code.