qreal-ization

In some places we do have direct math related calls. Almost all are
calling the double precision functions even if the args and results
are float.
This leads to unnecessary float->double and double->float transitions.
By using wrapper functions we can control which functrion variants
are effectively called.

Task-number: QTBUG-4894
Reviewed-by: Shane Kearns

1 files changed, 2 insertions, 2 deletions

diff --git a/src/corelib/tools/qline.cpp b/src/corelib/tools/qline.cpp
index d0afb7a..8112757 100644
--- a/src/corelib/tools/qline.cpp
+++ b/src/corelib/tools/qline.cpp
@@ -574,7 +574,7 @@ qreal QLineF::angle() const
     const qreal dx = pt2.x() - pt1.x();
     const qreal dy = pt2.y() - pt1.y();
 
-    const qreal theta = atan2(-dy, dx) * 360.0 / M_2PI;
+    const qreal theta = qAtan2(-dy, dx) * 360.0 / M_2PI;
 
     const qreal theta_normalized = theta < 0 ? theta + 360 : theta;
 
@@ -814,7 +814,7 @@ qreal QLineF::angle(const QLineF &l) const
     qreal cos_line = (dx()*l.dx() + dy()*l.dy()) / (length()*l.length());
     qreal rad = 0;
     // only accept cos_line in the range [-1,1], if it is outside, use 0 (we return 0 rather than PI for those cases)
-    if (cos_line >= -1.0 && cos_line <= 1.0) rad = acos( cos_line );
+    if (cos_line >= -1.0 && cos_line <= 1.0) rad = qAcos( cos_line );
     return rad * 360 / M_2PI;
 }