Linux Manuals

std::uniform_real_distribution<RealType>::a,b – std::uniform_real_distribution<RealType>::a,b Synopsis result_type a() const; (1) (since C++11) result_type b() const; (2) (since C++11) Returns the parameters the distribution has been constructed with. 1) Returns the a distribution parameter. It defines the minimum possibly generated value. The default value is 0.0. 2) Returns the b distribution parameter. It defines the maximum possibly generated…

std::uniform_real_distribution – std::uniform_real_distribution Synopsis Defined in header <random> template< class RealType = double > (since C++11) class uniform_real_distribution; Produces random floating-point values i, uniformly distributed on the interval [a, b), that is, distributed according to the probability density function:       P(i|a,b) =       1       b − a       . std::uniform_real_distribution satisfies all requirements of RandomNumberDistribution Template parameters RealType…

std::uniform_int_distribution< _IntType >::param_type – Synopsis Public Types typedef uniform_int_distribution < _IntType > distribution_type" Public Member Functions param_type (_IntType __a=0, _IntType __b=std::numeric_limits< _IntType >::max()) result_type a () const result_type b () const Friends bool operator== (const param_type &__p1, const param_type &__p2) Detailed Description template<typename _IntType = int>struct std::uniform_int_distribution< _IntType >::param_type Parameter type. Definition at line 1675…

std::uniform_int_distribution<IntType>::uniform_int_distribution – std::uniform_int_distribution<IntType>::uniform_int_distribution Synopsis uniform_int_distribution() : uniform_int_distribution(0){}(1)(since C++ 11) explicit uniform_int_distribution(IntType a, (2)(since C++ 11) IntType b = std::numeric_limits<IntType>::max()); explicit uniform_int_distribution(const param_type &params); (3)(since C++ 11) Constructs new distribution object. (2) uses a and b as the distribution parameters, (3) uses params as the distribution parameters. The behavior is undefined if a>b. Parameters a –…

std::uniform_int_distribution<IntType>::reset – std::uniform_int_distribution<IntType>::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::uniform_int_distribution<IntType>::param – std::uniform_int_distribution<IntType>::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::uniform_int_distribution<IntType>::operator() – std::uniform_int_distribution<IntType>::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 &params); 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::uniform_int_distribution<IntType>::min – std::uniform_int_distribution<IntType>::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::uniform_int_distribution<IntType>::max – std::uniform_int_distribution<IntType>::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::uniform_int_distribution<IntType>::a,b – std::uniform_int_distribution<IntType>::a,b Synopsis result_type a() const; (1) (since C++11) result_type b() const; (2) (since C++11) Returns the parameters the distribution has been constructed with. 1) Returns the a distribution parameter. It defines the minimum possibly generated value. The default value is 0. 2) Returns the b distribution parameter. It defines the maximum possibly generated…

std::uniform_int_distribution – std::uniform_int_distribution Synopsis Defined in header<random> template <class IntType = int> (since C++ 11) class uniform_int_distribution; Produces random integer values i, uniformly distributed on the closed interval [a, b], that is, distributed according to the discrete probability function       P(i|a,b) =       1       b − a + 1       . std::uniform_int_distribution satisfies all requirements of RandomNumberDistribution Template…

std::ungetwc – std::ungetwc Synopsis Defined in header <cwchar> wint_t ungetwc( wint_t ch, std::FILE* stream ); If ch does not equal WEOF, pushes the wide character ch into the input buffer associated with the stream stream in such a manner than subsequent read operation from stream will retrieve that wide character. The external device associated with…

std::ungetc – std::ungetc Synopsis Defined in header<cstdio> int ungetc(int ch, std::FILE *stream); If ch does not equal EOF, pushes the character ch (reinterpreted as unsigned char) into the input buffer associated with the stream stream in such a manner than subsequent read operation from stream will retrieve that character. The external device associated with the…

std::unexpected_handler – std::unexpected_handler Synopsis Defined in header <exception> typedef void (*unexpected_handler)(); (deprecated in C++11)                                        (removed in C++17) std::unexpected_handler is the function pointer type (pointer to function that takes no arguments and returns void), which is installed and queried by the functions std::set_unexpected and std::get_unexpected and called by std::unexpected. The C++ implementation provides a default std::unexpected_handler…

std::unexpected – std::unexpected Synopsis Defined in header <exception> void unexpected(); (until C++11)                                  (since C++11) [[noreturn]] void unexpected(); (deprecated)                                  (removed in C++17) std::unexpected() is called by the C++ runtime when a dynamic_exception_specification is violated: an exception is thrown from a function whose exception specification forbids exceptions of this type. std::unexpected() may also be called directly from…

std::underlying_type – std::underlying_type Synopsis Defined in header<type_traits> template <class T> (since C++ 11) struct underlying_type; If T is a complete enumeration type, provides a member typedef type that names the underlying type of T. Otherwise, the behavior is undefined. (until C++20) Otherwise, if T is not an enumeration type, there is no member type. Otherwise…

std::underflow_error – std::underflow_error Synopsis Defined in header <stdexcept> class underflow_error; Defines a type of object to be thrown as exception. It may be used to report arithmetic underflow errors (that is, situations where the result of a computation is a subnormal floating-point value) The standard library components do not throw this exception (mathematical functions report…

std::undeclare_reachable – std::undeclare_reachable Synopsis Defined in header <memory> template< class T > (since C++11) T* undeclare_reachable( T* p ); Removes the reachable status of the object, referenced by the pointer p, if it was previously set by std::declare_reachable. If the object was declared reachable multiple times, equal number of calls to undeclare_reachable would be needed…

std::undeclare_no_pointers – std::undeclare_no_pointers Synopsis Defined in header <memory> void undeclare_no_pointers( char *p, std::size_t n ); (since C++11) Unregisters a range earlier registered with std::declare_no_pointers(). Parameters p – pointer to the beginning of the range previosly registered with std::declare_no_pointers n – the number of bytes in the range, same value as previously used with std::declare_no_pointers Return…

std::uncaught_exception,std::uncaught_exceptions – std::uncaught_exception,std::uncaught_exceptions Synopsis Defined in header <exception> bool uncaught_exception() throw(); (until C++11)                                             (since C++11) bool uncaught_exception() noexcept; (1) (deprecated in C++17)                                             (removed in C++20) int uncaught_exceptions() noexcept; (2) (since C++17) 1) Detects if the current thread has a live exception object, that is, an exception has been thrown or rethrown and not yet entered…