diff options
| author | Allan Sandfeld Jensen <allan.jensen@theqtcompany.com> | 2015-01-14 11:17:47 +0100 |
|---|---|---|
| committer | Allan Sandfeld Jensen <allan.jensen@theqtcompany.com> | 2015-02-16 16:21:15 +0000 |
| commit | 515e802ae20c045e5c47b400ee6ef6e92349c978 (patch) | |
| tree | f9f4be4c9e360611b5823ef28c2cb293733aee42 /examples/widgets/painting | |
| parent | 3d835eb62e70435fe32318441dc7c10aba3a6fba (diff) | |
Use C++ <cmath> instead of <math.h>
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 <rafael.roquetto@kdab.com>
Diffstat (limited to 'examples/widgets/painting')
| -rw-r--r-- | examples/widgets/painting/painterpaths/window.cpp | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/examples/widgets/painting/painterpaths/window.cpp b/examples/widgets/painting/painterpaths/window.cpp index 5b1acf9c01..d3311075f5 100644 --- a/examples/widgets/painting/painterpaths/window.cpp +++ b/examples/widgets/painting/painterpaths/window.cpp @@ -43,7 +43,7 @@ #include <QtWidgets> -#include <math.h> +#include <cmath> //! [0] const float Pi = 3.14159f; @@ -123,8 +123,8 @@ Window::Window() QPainterPath starPath; starPath.moveTo(90, 50); for (int i = 1; i < 5; ++i) { - starPath.lineTo(50 + 40 * cos(0.8 * i * Pi), - 50 + 40 * sin(0.8 * i * Pi)); + starPath.lineTo(50 + 40 * std::cos(0.8 * i * Pi), + 50 + 40 * std::sin(0.8 * i * Pi)); } starPath.closeSubpath(); //! [9] |