1 files changed, 35 insertions, 10 deletions
diff --git a/src/corelib/kernel/qmath.h b/src/corelib/kernel/qmath.h
index a9e4378..ef3a4b0 100644
--- a/src/corelib/kernel/qmath.h
+++ b/src/corelib/kernel/qmath.h
@@ -45,6 +45,7 @@
 #include <math.h>
 
 #include <QtCore/qglobal.h>
+#include <private/qnumeric_p.h>
 
 QT_BEGIN_HEADER
 
@@ -106,6 +107,16 @@ inline qreal qAcos(qreal v)
         return acos(v);
 }
 
+inline qreal qAsin(qreal v)
+{
+#ifdef QT_USE_MATH_H_FLOATS
+    if (sizeof(qreal) == sizeof(float))
+        return asinf(float(v));
+    else
+#endif
+        return asin(v);
+}
+
 inline qreal qSqrt(qreal v)
 {
 #ifdef QT_USE_MATH_H_FLOATS
@@ -136,28 +147,42 @@ inline qreal qPow(qreal x, qreal y)
         return pow(x, y);
 }
 
-#ifndef M_PI
-#define M_PI (3.14159265358979323846)
-#endif
-
 inline qreal qFastSin(qreal x)
 {
-    int si = int(x * (0.5 * QT_SINE_TABLE_SIZE / M_PI)); // Would be more accurate with qRound, but slower.
-    qreal d = x - si * (2.0 * M_PI / QT_SINE_TABLE_SIZE);
+    int si = int(x * (qreal(0.5) * QT_SINE_TABLE_SIZE / Q_PI)); // Would be more accurate with qRound, but slower.
+    qreal d = x - si * (qreal(2.0) * Q_PI / QT_SINE_TABLE_SIZE);
     int ci = si + QT_SINE_TABLE_SIZE / 4;
     si &= QT_SINE_TABLE_SIZE - 1;
     ci &= QT_SINE_TABLE_SIZE - 1;
-    return qt_sine_table[si] + (qt_sine_table[ci] - 0.5 * qt_sine_table[si] * d) * d;
+    return qt_sine_table[si] + (qt_sine_table[ci] - qreal(0.5) * qt_sine_table[si] * d) * d;
 }
 
 inline qreal qFastCos(qreal x)
 {
-    int ci = int(x * (0.5 * QT_SINE_TABLE_SIZE / M_PI)); // Would be more accurate with qRound, but slower.
-    qreal d = x - ci * (2.0 * M_PI / QT_SINE_TABLE_SIZE);
+    int ci = int(x * (qreal(0.5) * QT_SINE_TABLE_SIZE / Q_PI)); // Would be more accurate with qRound, but slower.
+    qreal d = x - ci * (qreal(2.0) * Q_PI / QT_SINE_TABLE_SIZE);
     int si = ci + QT_SINE_TABLE_SIZE / 4;
     si &= QT_SINE_TABLE_SIZE - 1;
     ci &= QT_SINE_TABLE_SIZE - 1;
-    return qt_sine_table[si] - (qt_sine_table[ci] + 0.5 * qt_sine_table[si] * d) * d;
+    return qt_sine_table[si] - (qt_sine_table[ci] + qreal(0.5) * qt_sine_table[si] * d) * d;
+}
+
+inline qreal qFabs(qreal x)
+{
+#ifdef QT_USE_MATH_H_FLOATS
+    if(sizeof(qreal) == sizeof(float))
+        return fabsf(x);
+#endif
+    return fabs(x);
+}
+
+inline qreal qAtan2(qreal x, qreal y)
+{
+#ifdef QT_USE_MATH_H_FLOATS
+    if(sizeof(qreal) == sizeof(float))
+        return atan2f(x, y);
+#endif
+    return atan2(x, y);
 }
 
 QT_END_NAMESPACE