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>

2 files changed, 0 insertions, 53 deletions

diff --git a/config.tests/unix/floatmath/floatmath.cpp b/config.tests/unix/floatmath/floatmath.cpp
deleted file mode 100644
index 4becf2a266..0000000000
--- a/config.tests/unix/floatmath/floatmath.cpp
+++ /dev/null
@@ -1,50 +0,0 @@
-/****************************************************************************
-**
-** Copyright (C) 2015 The Qt Company Ltd.
-** Contact: http://www.qt.io/licensing/
-**
-** This file is part of the config.tests of the Qt Toolkit.
-**
-** $QT_BEGIN_LICENSE:LGPL21$
-** Commercial License Usage
-** Licensees holding valid commercial Qt licenses may use this file in
-** accordance with the commercial license agreement provided with the
-** Software or, alternatively, in accordance with the terms contained in
-** a written agreement between you and The Qt Company. For licensing terms
-** and conditions see http://www.qt.io/terms-conditions. For further
-** information use the contact form at http://www.qt.io/contact-us.
-**
-** GNU Lesser General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU Lesser
-** General Public License version 2.1 or version 3 as published by the Free
-** Software Foundation and appearing in the file LICENSE.LGPLv21 and
-** LICENSE.LGPLv3 included in the packaging of this file. Please review the
-** following information to ensure the GNU Lesser General Public License
-** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
-** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
-**
-** As a special exception, The Qt Company gives you certain additional
-** rights. These rights are described in The Qt Company LGPL Exception
-** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
-**
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-
-#include <math.h>
-
-int main(int argc, char **argv)
-{
-    float c = ceilf(1.3f);
-    float f = floorf(1.7f);
-    float s = sinf(3.8);
-    float t = cosf(7.3);
-    float u = sqrtf(8.4);
-    float l = logf(9.2);
-
-    if (c == 1.0f && f == 2.0f && s == 3.0f && t == 4.0f && u == 5.0f && l == 6.0f)
-        return 0;
-    else
-        return 1;
-}
-
diff --git a/config.tests/unix/floatmath/floatmath.pro b/config.tests/unix/floatmath/floatmath.pro
deleted file mode 100644
index 4c785638b2..0000000000
--- a/config.tests/unix/floatmath/floatmath.pro
+++ /dev/null
@@ -1,3 +0,0 @@
-SOURCES = floatmath.cpp
-CONFIG -= x11 qt
-