#include <QtCore/qglobal.h>#include <cmath>#include <limits>#include <type_traits>
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Macros | |
| #define | Q_INFINITY (QT_PREPEND_NAMESPACE(qInf)()) |
| #define | Q_QNAN (QT_PREPEND_NAMESPACE(qQNaN)()) |
Functions | |
| template<typename T > | |
| constexpr QT_BEGIN_NAMESPACE std::enable_if< std::is_integral< T >::value, bool >::type | qIsInf (T) |
| template<typename T > | |
| constexpr std::enable_if< std::is_integral< T >::value, bool >::type | qIsNaN (T) |
| template<typename T > | |
| constexpr std::enable_if< std::is_integral< T >::value, bool >::type | qIsFinite (T) |
| Q_CORE_EXPORT Q_DECL_CONST_FUNCTION bool | qIsInf (double d) |
| Q_CORE_EXPORT Q_DECL_CONST_FUNCTION bool | qIsNaN (double d) |
| Q_CORE_EXPORT Q_DECL_CONST_FUNCTION bool | qIsFinite (double d) |
| Q_CORE_EXPORT Q_DECL_CONST_FUNCTION int | qFpClassify (double val) |
| Q_CORE_EXPORT Q_DECL_CONST_FUNCTION bool | qIsInf (float f) |
| Q_CORE_EXPORT Q_DECL_CONST_FUNCTION bool | qIsNaN (float f) |
| Q_CORE_EXPORT Q_DECL_CONST_FUNCTION bool | qIsFinite (float f) |
| Q_CORE_EXPORT Q_DECL_CONST_FUNCTION int | qFpClassify (float val) |
| Q_CORE_EXPORT Q_DECL_CONST_FUNCTION double | qQNaN () |
| Q_CORE_EXPORT Q_DECL_CONST_FUNCTION double | qInf () |
| Q_CORE_EXPORT quint32 | qFloatDistance (float a, float b) |
| Q_CORE_EXPORT quint64 | qFloatDistance (double a, double b) |
| template<typename T > | |
| std::enable_if_t< std::is_unsigned_v< T >, bool > | qAddOverflow (T v1, T v2, T *r) |
| template<typename T > | |
| std::enable_if_t< std::is_signed_v< T >, bool > | qAddOverflow (T v1, T v2, T *r) |
| template<typename T > | |
| std::enable_if_t< std::is_unsigned_v< T >, bool > | qSubOverflow (T v1, T v2, T *r) |
| template<typename T > | |
| std::enable_if_t< std::is_signed_v< T >, bool > | qSubOverflow (T v1, T v2, T *r) |
| template<typename T > | |
| std::enable_if_t< std::is_unsigned_v< T >||std::is_signed_v< T >, bool > | qMulOverflow (T v1, T v2, T *r) |
| template<typename T , T V2> | |
| bool | qAddOverflow (T v1, std::integral_constant< T, V2 >, T *r) |
| template<auto V2, typename T > | |
| bool | qAddOverflow (T v1, T *r) |
| template<typename T , T V2> | |
| bool | qSubOverflow (T v1, std::integral_constant< T, V2 >, T *r) |
| template<auto V2, typename T > | |
| bool | qSubOverflow (T v1, T *r) |
| template<typename T , T V2> | |
| bool | qMulOverflow (T v1, std::integral_constant< T, V2 >, T *r) |
| template<auto V2, typename T > | |
| bool | qMulOverflow (T v1, T *r) |
Macro Definition Documentation
◆ Q_INFINITY
| #define Q_INFINITY (QT_PREPEND_NAMESPACE(qInf)()) |
Definition at line 106 of file qnumeric.h.
◆ Q_QNAN
| #define Q_QNAN (QT_PREPEND_NAMESPACE(qQNaN)()) |
Definition at line 110 of file qnumeric.h.
Function Documentation
◆ qAddOverflow() [1/4]
◆ qAddOverflow() [2/4]
◆ qAddOverflow() [3/4]
◆ qAddOverflow() [4/4]
template<typename T >
|
inline |
Definition at line 152 of file qnumeric.h.
◆ qFloatDistance() [1/2]
| Q_CORE_EXPORT quint64 qFloatDistance | ( | double | a, |
| double | b | ||
| ) |
◆ qFloatDistance() [2/2]
| Q_CORE_EXPORT quint32 qFloatDistance | ( | float | a, |
| float | b | ||
| ) |
◆ qFpClassify() [1/2]
| Q_CORE_EXPORT Q_DECL_CONST_FUNCTION int qFpClassify | ( | double | val | ) |
Definition at line 123 of file qnumeric.cpp.
◆ qFpClassify() [2/2]
| Q_CORE_EXPORT Q_DECL_CONST_FUNCTION int qFpClassify | ( | float | val | ) |
Definition at line 124 of file qnumeric.cpp.
◆ qInf()
| Q_CORE_EXPORT Q_DECL_CONST_FUNCTION double qInf | ( | ) |
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◆ qIsFinite() [1/3]
| Q_CORE_EXPORT Q_DECL_CONST_FUNCTION bool qIsFinite | ( | double | d | ) |
◆ qIsFinite() [2/3]
| Q_CORE_EXPORT Q_DECL_CONST_FUNCTION bool qIsFinite | ( | float | f | ) |
◆ qIsFinite() [3/3]
template<typename T >
|
constexpr |
Definition at line 85 of file qnumeric.h.
◆ qIsInf() [1/3]
| Q_CORE_EXPORT Q_DECL_CONST_FUNCTION bool qIsInf | ( | double | d | ) |
◆ qIsInf() [2/3]
| Q_CORE_EXPORT Q_DECL_CONST_FUNCTION bool qIsInf | ( | float | f | ) |
◆ qIsInf() [3/3]
template<typename T >
|
constexpr |
Definition at line 79 of file qnumeric.h.
◆ qIsNaN() [1/3]
| Q_CORE_EXPORT Q_DECL_CONST_FUNCTION bool qIsNaN | ( | double | d | ) |
◆ qIsNaN() [2/3]
| Q_CORE_EXPORT Q_DECL_CONST_FUNCTION bool qIsNaN | ( | float | f | ) |
◆ qIsNaN() [3/3]
template<typename T >
|
constexpr |
Definition at line 82 of file qnumeric.h.
◆ qMulOverflow() [1/3]
◆ qMulOverflow() [2/3]
◆ qMulOverflow() [3/3]
◆ qQNaN()
| Q_CORE_EXPORT Q_DECL_CONST_FUNCTION double qQNaN | ( | ) |
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