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::numeric_limits<T>::lowest – std::numeric_limits<T>::lowest Synopsis static constexpr T lowest() noexcept; (since C++11) Returns the lowest finite value representable by the numeric type T, that is, a finite value x such that there is no other finite value y where y < x. This is different from std::numeric_limits<T>::min() for floating-point types. Only meaningful for bounded types. Return…
std::numeric_limits<T>::is_specialized – std::numeric_limits<T>::is_specialized Synopsis static const bool is_specialized; (until C++ 11) static constexpr bool is_specialized; (since C++ 11) The value of std::numeric_limits<T>::is_specialized is true for all T for which there exists a specialization of std::numeric_limits. Standard specializations T value of std::numeric_limits<T>::is_specialized /* non-specialized */ false bool true char true signed char true unsigned char true…
std::numeric_limits<T>::is_signed – std::numeric_limits<T>::is_signed Synopsis static const bool is_signed; (until C++ 11) static constexpr bool is_signed; (since C++ 11) The value of std::numeric_limits<T>::is_signed is true for all signed arithmetic types T and false for the unsigned types. This constant is meaningful for all specializations. Standard specializations T value of std::numeric_limits<T>::is_signed /* non-specialized */ false bool false…
std::numeric_limits<T>::is_modulo – std::numeric_limits<T>::is_modulo Synopsis static const bool is_modulo; (until C++ 11) static constexpr bool is_modulo; (since C++ 11) The value of std::numeric_limits<T>::is_modulo is true for all arithmetic types T that are possible to (until C++11)handle overflows with modulo arithmetic, that is, if the result of addition, subtraction, multiplication, or division of this type would fall…
std::numeric_limits<T>::is_integer – std::numeric_limits<T>::is_integer Synopsis static const bool is_integer; (until C++ 11) static constexpr bool is_integer; (since C++ 11) The value of std::numeric_limits<T>::is_integer is true for all integer arithmetic types T and false otherwise. This constant is meaningful for all specializations. Standard specializations T value of std::numeric_limits<T>::is_integer /* non-specialized */ false bool true char true signed…
std::numeric_limits<T>::is_iec559 – std::numeric_limits<T>::is_iec559 Synopsis static const bool is_iec559; (until C++ 11) static constexpr bool is_iec559; (since C++ 11) The value of std::numeric_limits<T>::is_iec559 is true for all floating-point types T which fulfill the requirements of IEC 559 (IEEE_754) standard. If std::numeric_limits<T>::is_iec559 is true, then std::numeric_limits<T>::has_infinity, std::numeric_limits<T>::has_quiet_NaN, and std::numeric_limits<T>::has_signaling_NaN are also true. Standard specializations T value of…
std::numeric_limits<T>::is_exact – std::numeric_limits<T>::is_exact Synopsis static const bool is_exact; (until C++ 11) static constexpr bool is_exact; (since C++ 11) The value of std::numeric_limits<T>::is_exact is true for all arithmetic types T that use exact representation. Standard specializations T value of std::numeric_limits<T>::is_exact /* non-specialized */ false bool true char true signed char true unsigned char true wchar_t true…
std::numeric_limits<T>::is_bounded – std::numeric_limits<T>::is_bounded Synopsis static const bool is_bounded; (until C++ 11) static constexpr bool is_bounded; (since C++ 11) The value of std::numeric_limits<T>::is_bounded is true for all arithmetic types T that represent a finite set of values. While all fundamental types are bounded, this constant would be false in a specialization of std::numeric_limits for a library-provided…
std::numeric_limits<T>::infinity – std::numeric_limits<T>::infinity Synopsis static T infinity() throw(); (until C++11) static constexpr T infinity() noexcept; (since C++11) Returns the special value "positive infinity", as represented by the floating-point type T. Only meaningful if std::numeric_limits<T>::has_infinity == true. In IEEE 754, the most common binary representation of floating-point numbers, the positive infinity is the value with all…
std::numeric_limits<T>::has_signaling_NaN – std::numeric_limits<T>::has_signaling_NaN Synopsis static const bool has_signaling_NaN; (until C++ 11) static constexpr bool has_signaling_NaN; (since C++ 11) The value of std::numeric_limits<T>::has_signaling_NaN is true for all types T capable of representing the special value "Signaling Not-A-Number". This constant is meaningful for all floating-point types and is guaranteed to be true if std::numeric_limits<T>::is_iec559 == true. Standard…
std::numeric_limits<T>::has_quiet_NaN – std::numeric_limits<T>::has_quiet_NaN Synopsis static const bool has_quiet_NaN; (until C++ 11) static constexpr bool has_quiet_NaN; (since C++ 11) The value of std::numeric_limits<T>::has_quiet_NaN is true for all types T capable of representing the special value "Quiet Not-A-Number". This constant is meaningful for all floating-point types and is guaranteed to be true if std::numeric_limits<T>::is_iec559 == true. Standard…
std::numeric_limits<T>::has_infinity – std::numeric_limits<T>::has_infinity Synopsis static const bool has_infinity; (until C++ 11) static constexpr bool has_infinity; (since C++ 11) The value of std::numeric_limits<T>::has_infinity is true for all types T capable of representing the positive infinity as a distinct special value. This constant is meaningful for all floating-point types and is guaranteed to be true if std::numeric_limits<T>::is_iec559…
std::numeric_limits<T>::has_denorm_loss – std::numeric_limits<T>::has_denorm_loss Synopsis static const bool has_denorm_loss; (until C++ 11) static constexpr bool has_denorm_loss; (since C++ 11) The value of std::numeric_limits<T>::has_denorm_loss is true for all floating-point types T that detect loss of precision when creating a subnormal number as denormalization loss rather than as inexact result (see below). Standard specializations T value of std::numeric_limits<T>::has_denorm_loss…
std::numeric_limits<T>::has_denorm – std::numeric_limits<T>::has_denorm Synopsis static const std::float_denorm_style has_denorm; (until C++ 11) static constexpr std::float_denorm_style has_denorm; (since C++ 11) The value of std::numeric_limits<T>::has_denorm identifies the floating-point types that support subnormal_values. Standard specializations T value of std::numeric_limits<T>::has_denorm /* non-specialized */ std::denorm_absent bool std::denorm_absent char std::denorm_absent signed char std::denorm_absent unsigned char std::denorm_absent wchar_t std::denorm_absent char8_t std::denorm_absent char16_t std::denorm_absent…
std::numeric_limits<T>::epsilon – std::numeric_limits<T>::epsilon Synopsis static T epsilon() throw(); (until C++11) static constexpr T epsilon() noexcept; (since C++11) Returns the machine epsilon, that is, the difference between 1.0 and the next value representable by the floating-point type T. It is only meaningful if std::numeric_limits<T>::is_integer == false. Return value T std::numeric_limits<T>::epsilon() /* non-specialized */ T() bool false…
std::numeric_limits<T>::digits10 – std::numeric_limits<T>::digits10 Synopsis static const int digits10; (until C++ 11) static constexpr int digits10(since C++ 11) The value of std::numeric_limits<T>::digits10 is the number of base-10 digits that can be represented by the type T without change, that is, any number with this many significant decimal digits can be converted to a value of type…
std::numeric_limits<T>::digits – std::numeric_limits<T>::digits Synopsis static const int digits; (until C++ 11) static constexpr int digits; (since C++ 11) The value of std::numeric_limits<T>::digits is the number of digits in base-radix that can be represented by the type T without change. For integer types, this is the number of bits not counting the sign bit and the…
std::numeric_limits<T>::denorm_min – std::numeric_limits<T>::denorm_min Synopsis static T denorm_min() throw(); (until C++11) static constexpr T denorm_min() noexcept; (since C++11) Returns the minimum positive subnormal_value of the type T, if std::numeric_limits<T>::has_denorm != std::denorm_absent, otherwise returns std::numeric_limits<T>::min(). Only meaningful for floating-point types. Return value T std::numeric_limits<T>::denorm_min() /* non-specialized */ T() bool false char 0 signed char 0 unsigned char…
std::numeric_limits – std::numeric_limits Synopsis Defined in header <limits> template< class T > class numeric_limits; The numeric_limits class template provides a standardized way to query various properties of arithmetic types (e.g. the largest possible value for type int is std::numeric_limits<int>::max()). This information is provided via specializations of the numeric_limits template. The standard library makes available specializations…
std::num_put<CharT,OutputIt>::~num_put – std::num_put<CharT,OutputIt>::~num_put Synopsis Defined in header <locale> protected: ~num_put(); Destructs a std::num_put facet. This destructor is protected and virtual (due to base_class destructor being virtual). An object of type std::num_put, like most facets, can only be destroyed when the last std::locale object that implements this facet goes out of scope or if a user-defined…