Functions | |
| int | wxFinite (double x) |
| Returns a non-zero value if x is neither infinite nor NaN (not a number), returns 0 otherwise. More... | |
| unsigned int | wxGCD (unsigned int u, unsigned int v) |
| Returns the greatest common divisor of the two given numbers. More... | |
| bool | wxIsNaN (double x) |
| Returns a non-zero value if x is NaN (not a number), returns 0 otherwise. More... | |
| wxFloat64 | wxConvertFromIeeeExtended (const wxInt8 *bytes) |
| Converts the given array of 10 bytes (corresponding to 80 bits) to a float number according to the IEEE floating point standard format (aka IEEE standard 754). More... | |
| void | wxConvertToIeeeExtended (wxFloat64 num, wxInt8 *bytes) |
| Converts the given floating number num in a sequence of 10 bytes which are stored in the given array bytes (which must be large enough) according to the IEEE floating point standard format (aka IEEE standard 754). More... | |
| double | wxDegToRad (double deg) |
| Convert degrees to radians. More... | |
| double | wxRadToDeg (double rad) |
| Convert radians to degrees. More... | |
| unsigned int | wxCTZ (wxUint32 x) |
| Count the number of trailing zeros. More... | |
| template<typename T > | |
| int | wxRound (T x) |
| Small wrapper around std::lround(). More... | |
| bool | wxIsSameDouble (double x, double y) |
| Returns true if both double values are identical. More... | |
| bool | wxIsNullDouble (double x) |
| Return true of x is exactly zero. More... | |
Converts the given array of 10 bytes (corresponding to 80 bits) to a float number according to the IEEE floating point standard format (aka IEEE standard 754).
Converts the given floating number num in a sequence of 10 bytes which are stored in the given array bytes (which must be large enough) according to the IEEE floating point standard format (aka IEEE standard 754).
| unsigned int wxCTZ | ( | wxUint32 | x | ) |
Count the number of trailing zeros.
This function returns the number of trailing zeros in the binary notation of its argument x. E.g. for x equal to 4, or 0b100, the return value is 2.
| x | Strictly positive, i.e. non-zero, 32 bit number. |
| double wxDegToRad | ( | double | deg | ) |
Convert degrees to radians.
This function simply returns its argument multiplied by M_PI/180 but is more readable than writing this expression directly.
| int wxFinite | ( | double | x | ) |
Returns a non-zero value if x is neither infinite nor NaN (not a number), returns 0 otherwise.
Include file:
#include <wx/math.h>
| unsigned int wxGCD | ( | unsigned int | u, |
| unsigned int | v | ||
| ) |
Returns the greatest common divisor of the two given numbers.
Include file:
#include <wx/math.h>
| bool wxIsNaN | ( | double | x | ) |
Returns a non-zero value if x is NaN (not a number), returns 0 otherwise.
Include file:
#include <wx/math.h>
| bool wxIsNullDouble | ( | double | x | ) |
Return true of x is exactly zero.
This is only reliable if it has been assigned 0.
| bool wxIsSameDouble | ( | double | x, |
| double | y | ||
| ) |
Returns true if both double values are identical.
This is only reliable if both values have been assigned the same value.
| double wxRadToDeg | ( | double | rad | ) |
Convert radians to degrees.
This function simply returns its argument multiplied by 180/M_PI but is more readable than writing this expression directly.
| int wxRound | ( | T | x | ) |
Small wrapper around std::lround().
This function exists for compatibility, as it was more convenient than std::round() before C++11. Use std::lround() in the new code.
It is defined for all floating point types T and can be also used with integer types for compatibility, but such use is deprecated – simply remove the calls to wxRound() from your code if you're using it with integer types, it is unnecessary in this case.