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Implement wxRound() with dedicated C++11 standard library function

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This commit is contained in:
Artur Wieczorek
2020-09-17 13:29:06 +02:00
parent 864034bddc
commit 4b491c19a2
1 changed files with 20 additions and 12 deletions
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32
include/wx/math.h
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@@ -62,6 +62,14 @@
#define wxFinite(x) std::isfinite(x) #define wxFinite(x) std::isfinite(x)
#define wxIsNaN(x) std::isnan(x) #define wxIsNaN(x) std::isnan(x)
inline int wxRound(double x)
{
wxASSERT_MSG(x > (double)INT_MIN - 0.5 && x < (double)INT_MAX + 0.5,
wxT("argument out of supported range"));
return std::lround(x);
}
#else /* C++98 */ #else /* C++98 */
#if defined(__VISUALC__) || defined(__BORLANDC__) #if defined(__VISUALC__) || defined(__BORLANDC__)
@@ -104,6 +112,18 @@
#define wxIsNaN(x) ((x) != (x)) #define wxIsNaN(x) ((x) != (x))
#endif #endif
inline int wxRound(double x)
{
wxASSERT_MSG(x > (double)INT_MIN - 0.5 && x < (double)INT_MAX + 0.5,
wxT("argument out of supported range"));
#if defined(HAVE_ROUND)
return int(round(x));
#else
return (int)(x < 0 ? x - 0.5 : x + 0.5);
#endif
}
#endif /* C++11/C++98 */ #endif /* C++11/C++98 */
#ifdef __INTELC__ #ifdef __INTELC__
@@ -134,18 +154,6 @@
inline bool wxIsNullDouble(double x) { return wxIsSameDouble(x, 0.); } inline bool wxIsNullDouble(double x) { return wxIsSameDouble(x, 0.); }
inline int wxRound(double x)
{
wxASSERT_MSG( x > (double)INT_MIN - 0.5 && x < (double)INT_MAX + 0.5,
wxT("argument out of supported range") );
#if defined(HAVE_ROUND)
return int(round(x));
#else
return (int)(x < 0 ? x - 0.5 : x + 0.5);
#endif
}
// Convert between degrees and radians. // Convert between degrees and radians.
inline double wxDegToRad(double deg) { return (deg * M_PI) / 180.0; } inline double wxDegToRad(double deg) { return (deg * M_PI) / 180.0; }
inline double wxRadToDeg(double rad) { return (rad * 180.0) / M_PI; } inline double wxRadToDeg(double rad) { return (rad * 180.0) / M_PI; }