The functions in this section are typically related with math operations and floating point numbers.
Functions | |
| int | wxFinite (double x) |
| Returns a non-zero value if x is neither infinite nor NaN (not a number), returns 0 otherwise. 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... | |
| int | wxRound (double x) |
| Small wrapper around round(). 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).
| 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>
| 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.
| int wxRound | ( | double | x | ) |
Small wrapper around round().