From 515e802ae20c045e5c47b400ee6ef6e92349c978 Mon Sep 17 00:00:00 2001 From: Allan Sandfeld Jensen Date: Wed, 14 Jan 2015 11:17:47 +0100 Subject: Use C++ instead of Including math.h can pollute the default namespace, and break some compilers if cmath versions of the method are declared as using. Switching to C++ math functions also greatly simplifies handling of float qreal as C++ automatically chooses the right method. [ChangeLog][QtCore][QtMath] qmath.h no longer includes math.h, so any sources depending on that indirect inclusion may fail to build. Change-Id: I4d0e331dafba354ec05dc5052e61ef4ff8d387fe Reviewed-by: Rafael Roquetto --- src/plugins/platforms/windows/qwindowstabletsupport.cpp | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'src/plugins/platforms/windows/qwindowstabletsupport.cpp') diff --git a/src/plugins/platforms/windows/qwindowstabletsupport.cpp b/src/plugins/platforms/windows/qwindowstabletsupport.cpp index 1818d614fd..7b871be015 100644 --- a/src/plugins/platforms/windows/qwindowstabletsupport.cpp +++ b/src/plugins/platforms/windows/qwindowstabletsupport.cpp @@ -455,10 +455,10 @@ bool QWindowsTabletSupport::translateTabletPacketEvent() // X Tilt = arctan(X / Z) // Y Tilt = arctan(Y / Z) const double radAzim = (packet.pkOrientation.orAzimuth / 10.0) * (M_PI / 180); - const double tanAlt = tan((abs(packet.pkOrientation.orAltitude / 10.0)) * (M_PI / 180)); + const double tanAlt = std::tan((std::abs(packet.pkOrientation.orAltitude / 10.0)) * (M_PI / 180)); - const double degX = atan(sin(radAzim) / tanAlt); - const double degY = atan(cos(radAzim) / tanAlt); + const double degX = std::atan(std::sin(radAzim) / tanAlt); + const double degY = std::atan(std::cos(radAzim) / tanAlt); tiltX = int(degX * (180 / M_PI)); tiltY = int(-degY * (180 / M_PI)); rotation = 360.0 - (packet.pkOrientation.orTwist / 10.0); -- cgit v1.2.3