Section 3: library functions
std::cauchy_distribution<RealType>::reset – std::cauchy_distribution<RealType>::reset Synopsis void reset(); (since C++ 11) Resets the internal state of the distribution object. After a call to this function, the next call to operator() on the distribution object will not be dependent on previous calls to operator(). Parameters (none) Return value (none) Complexity Constant.
std::cauchy_distribution<RealType>::param – std::cauchy_distribution<RealType>::param Synopsis param_type param() const; (1) (since C++11) void param( const param_type& params ); (2) (since C++11) Manages the associated distribution parameter set. 1) Returns the associated parameter set. 2) Sets the associated parameter set to params Parameters params – new contents of the associated parameter set Return value 1) The associated parameter…
std::cauchy_distribution<RealType>::operator() – std::cauchy_distribution<RealType>::operator() Synopsis template <class Generator> (1)(since C++ 11) result_type operator()(Generator &g); template <class Generator> (2)(since C++ 11) result_type operator()(Generator &g, const param_type ¶ms); Generates random numbers that are distributed according to the associated probability function. The entropy is acquired by calling g.operator(). The first version uses the associated parameter set, the second version…
std::cauchy_distribution<RealType>::min – std::cauchy_distribution<RealType>::min Synopsis result_type min() const; (since C++11) Returns the minimum value potentially generated by the distribution. Parameters (none) Return value The minimum value potentially generated by the distribution Complexity Constant. See also returns the maximum potentially generated value max (public member function)
std::cauchy_distribution<RealType>::max – std::cauchy_distribution<RealType>::max Synopsis result_type max() const; (since C++11) Returns the maximum value potentially generated by the distribution. Parameters (none) Return value The maximum value potentially generated by the distribution. Complexity Constant. See also returns the minimum potentially generated value min (public member function)
std::cauchy_distribution<RealType>::cauchy_distribution – std::cauchy_distribution<RealType>::cauchy_distribution Synopsis cauchy_distribution() : cauchy_distribution(0.0){}(1)(since C++ 11) explicit cauchy_distribution(RealType a, RealType b = 1.0); (2)(since C++ 11) explicit cauchy_distribution(const param_type ¶ms); (3)(since C++ 11) Constructs a new distribution object. (2) uses a and b as the distribution parameters. (3) uses params as the distribution parameters. Parameters a – the a distribution parameter (location)…
std::cauchy_distribution<RealType>::a,b – std::cauchy_distribution<RealType>::a,b Synopsis RealType a() const; (1) (since C++11) RealType b() const; (2) (since C++11) Returns the distribution parameters with which the distribution was constructed. 1) Returns the a parameter. It specifies the location of the peak and is also called location parameter. The default value is 0.0. 2) Returns the b parameter. It…
std::cauchy_distribution – std::cauchy_distribution Synopsis Defined in header <random> template< class RealType = double > (since C++11) class cauchy_distribution; Produces random numbers according to a Cauchy distribution (also called Lorentz distribution): f(x; a,b) = ⎛ ⎜ ⎝bπ ⎡ ⎢ ⎣1 + ⎛ ⎜ ⎝ x – a b ⎞ ⎟ ⎠2 ⎤ ⎥ ⎦⎞ ⎟ ⎠-1…
std::calloc – std::calloc Synopsis Defined in header<cstdlib> void *calloc(std::size_t num, std::size_t size); Allocates memory for an array of num objects of size size and initializes it to all bits zero. If allocation succeeds, returns a pointer to the lowest (first) byte in the allocated memory block that is suitably aligned for any object type. If…
std::call_once – std::call_once Synopsis Defined in header<mutex> template <class Callable, class… Args> (since C++ 11) void call_once(std::once_flag &flag, Callable &&f, Args &&…args); Executes the Callable object f exactly once, even if called concurrently, from several threads. In detail: * If, by the time call_once is called, flag indicates that f was already called, call_once returns…
std::c8rtomb – std::c8rtomb Synopsis Defined in header <cuchar> std::size_t c8rtomb( char* s, char8_t c8, std::mbstate_t* ps ); (since C++20) Converts a single code point from UTF-8 to a narrow multibyte character representation. If s is not a null pointer and c8 is the last code unit in a valid UTF-8 encoding of a code point,…
std::c32rtomb – std::c32rtomb Synopsis Defined in header <cuchar> std::size_t c32rtomb( char* s, char32_t c32, std::mbstate_t* ps ); (since C++11) Converts a UTF-32 character to its narrow multibyte representation. If s is not a null pointer, the function determines the number of bytes necessary to store the multibyte character representation of c32 (including any shift sequences,…
std::c16rtomb – std::c16rtomb Synopsis Defined in header <cuchar> std::size_t c16rtomb( char* s, char16_t c16, std::mbstate_t* ps ); (since C++11) Converts a single code point from variable-length 16-bit character representation (typically, UTF-16) to a narrow multibyte character representation. If s is not a null pointer and c16 is the last 16-bit code unit in a valid…
std::byte – std::byte Synopsis Defined in header <cstddef> enum class byte : unsigned char {} ; (since C++17) std::byte is a distinct type that implements the concept of byte as specified in the C++ language definition. Like char and unsigned char, it can be used to access raw memory occupied by other objects (object_representation), but…
std::btowc – std::btowc Synopsis Defined in header<cwchar> std::wint_t btowc(int c); Widens a single-byte character c to its wide character equivalent. Most multibyte character encodings use single-byte codes to represent the characters from the ASCII character set. This function may be used to convert such characters to wchar_t. Parameters c – single-byte character to widen Return…
std::bsearch – std::bsearch Synopsis Defined in header<cstdlib> void *bsearch(const void *key, const void *ptr, std::size_t count, std::size_t size, /*compare-pred*/ *comp); (1) void *bsearch(const void *key, const void *ptr, std::size_t count, std::size_t size, /*c-compare-pred*/ *comp); extern "C++" using /*compare-pred*/ = int(const void *, const void *); // exposition-only (2) extern "C" using /*c-compare-pred*/ = int(const void…
std::boyer_moore_searcher – std::boyer_moore_searcher Synopsis Defined in header <functional> template< class RandomIt1, class Hash = std::hash<typename std::iterator_traits<RandomIt1>::value_type>, (since C++17) class BinaryPredicate = std::equal_to<> > class boyer_moore_searcher; A searcher suitable for use with the Searcher overload of std::search that implements the Boyer-Moore_string_searching_algorithm. boyer_moore_searcher is CopyConstructible and CopyAssignable. RandomIt1 must meet the requirements of LegacyRandomAccessIterator. Member functions std::boyer_moore_searcher::boyer_moore_searcher…
std::boyer_moore_horspool_searcher – std::boyer_moore_horspool_searcher Synopsis Defined in header <functional> template< class RandomIt1, class Hash = std::hash<typename std::iterator_traits<RandomIt1>::value_type>, (since C++17) class BinaryPredicate = std::equal_to<> > class boyer_moore_horspool_searcher; A searcher suitable for use with the Searcher overload of std::search that implements the Boyer-Moore-Horspool_string_searching_algorithm. boyer_moore_horspool_searcher is CopyConstructible and CopyAssignable. RandomIt1 must meet the requirements of LegacyRandomAccessIterator. Member functions std::boyer_moore_horspool_searcher::boyer_moore_horspool_searcher…
std::boolalpha,std::noboolalpha – std::boolalpha,std::noboolalpha Synopsis Defined in header <ios> std::ios_base& boolalpha( std::ios_base& str ); (1) std::ios_base& noboolalpha( std::ios_base& str ); (2) 1) Enables the boolalpha flag in the stream str as if by calling str.setf(std::ios_base::boolalpha) 2) Disables the boolalpha flag in the stream str as if by calling str.unsetf(std::ios_base::boolalpha) std::boolalpha is an I/O manipulator, so it…
std::bitset<N>::to_ulong – std::bitset<N>::to_ulong Synopsis unsigned long to_ulong() const Converts the contents of the bitset to an unsigned long integer. The first bit of the bitset corresponds to the least significant digit of the number and the last bit corresponds to the most significant digit. Parameters (none) Return value the converted integer Exceptions throws std::overflow_error if…