Merge branch 'qdoc-simplified' into mimir-simplified

Conflicts:
	doc/src/platforms/compiler-notes.qdoc
	tools/qdoc3/ditaxmlgenerator.cpp
	tools/qdoc3/ditaxmlgenerator.h
	tools/qdoc3/htmlgenerator.cpp
	tools/qdoc3/htmlgenerator.h
	tools/qdoc3/node.cpp
	tools/qdoc3/pagegenerator.h

9 files changed, 39 insertions, 19 deletions

diff --git a/src/corelib/tools/qbytearray.cpp b/src/corelib/tools/qbytearray.cpp
index b0c784e..fac0f45 100644
--- a/src/corelib/tools/qbytearray.cpp
+++ b/src/corelib/tools/qbytearray.cpp
@@ -1812,7 +1812,7 @@ QByteArray &QByteArray::replace(int pos, int len, const QByteArray &after)
         return *this;
     } else {
         QByteArray copy(after);
-        // ### optimise me
+        // ### optimize me
         remove(pos, len);
         return insert(pos, copy);
     }
@@ -1853,7 +1853,7 @@ QByteArray &QByteArray::replace(int pos, int len, const char *after, int alen)
     }
 }
 
-// ### optimise all other replace method, by offering
+// ### optimize all other replace method, by offering
 // QByteArray::replace(const char *before, int blen, const char *after, int alen)
 
 /*!
diff --git a/src/corelib/tools/qlocale.cpp b/src/corelib/tools/qlocale.cpp
index 6b1de5e..b817eb2 100644
--- a/src/corelib/tools/qlocale.cpp
+++ b/src/corelib/tools/qlocale.cpp
@@ -77,7 +77,7 @@ QT_END_NAMESPACE
 #include <qdebug.h>
 #include <time.h>
 
-#if defined(Q_OS_LINUX) && !defined(__UCLIBC__)
+#if defined(__GLIBC__) && !defined(__UCLIBC__)
 #    include <fenv.h>
 #endif
 
@@ -1576,8 +1576,6 @@ QDataStream &operator>>(QDataStream &ds, QLocale &l)
        defaults to the default locale (see setDefault()).
     \endlist
 
-    The "C" locale is identical in behavior to \l{English}/\l{UnitedStates}.
-
     Use language() and country() to determine the actual language and
     country values used.
 
@@ -6637,7 +6635,7 @@ Q_CORE_EXPORT char *qdtoa ( double d, int mode, int ndigits, int *decpt, int *si
     _control87(MCW_EM, MCW_EM);
 #endif
 
-#if defined(Q_OS_LINUX) && !defined(__UCLIBC__)
+#if defined(__GLIBC__) && !defined(__UCLIBC__)
     fenv_t envp;
     feholdexcept(&envp);
 #endif
@@ -6653,7 +6651,7 @@ Q_CORE_EXPORT char *qdtoa ( double d, int mode, int ndigits, int *decpt, int *si
 #endif //_M_X64
 #endif //Q_OS_WIN
 
-#if defined(Q_OS_LINUX) && !defined(__UCLIBC__)
+#if defined(__GLIBC__) && !defined(__UCLIBC__)
     fesetenv(&envp);
 #endif
 
@@ -7308,6 +7306,7 @@ Q_CORE_EXPORT char *qdtoa( double d, int mode, int ndigits, int *decpt, int *sig
 
 Q_CORE_EXPORT double qstrtod(const char *s00, const char **se, bool *ok)
 {
+    errno = 0;
     double ret = strtod((char*)s00, (char**)se);
     if (ok) {
       if((ret == 0.0l && errno == ERANGE)
diff --git a/src/corelib/tools/qlocale.h b/src/corelib/tools/qlocale.h
index 8b424bb..1af2cb4 100644
--- a/src/corelib/tools/qlocale.h
+++ b/src/corelib/tools/qlocale.h
@@ -114,7 +114,7 @@ class Q_CORE_EXPORT QLocale
     friend class QString;
     friend class QByteArray;
     friend class QIntValidator;
-    friend class QDoubleValidator;
+    friend class QDoubleValidatorPrivate;
     friend class QTextStream;
     friend class QTextStreamPrivate;
 
diff --git a/src/corelib/tools/qpoint.cpp b/src/corelib/tools/qpoint.cpp
index 66f06e9..c297709 100644
--- a/src/corelib/tools/qpoint.cpp
+++ b/src/corelib/tools/qpoint.cpp
@@ -438,8 +438,12 @@ QDebug operator<<(QDebug d, const QPointF &p)
 /*!
     \fn bool QPointF::isNull() const
 
-    Returns true if both the x and y coordinates are set to 0.0,
+    Returns true if both the x and y coordinates are set to +0.0;
     otherwise returns false.
+
+    \note Since this function treats +0.0 and -0.0 differently, points
+    with zero-valued coordinates where either or both values have a
+    negative sign are not defined to be null points.
 */
 
 
diff --git a/src/corelib/tools/qsharedpointer_impl.h b/src/corelib/tools/qsharedpointer_impl.h
index 4cce339..2895bba 100644
--- a/src/corelib/tools/qsharedpointer_impl.h
+++ b/src/corelib/tools/qsharedpointer_impl.h
@@ -378,6 +378,13 @@ namespace QtSharedPointer {
 
         inline ExternalRefCount() : d(0) { }
         inline ExternalRefCount(Qt::Initialization i) : Basic<T>(i) { }
+
+        inline ExternalRefCount(T *ptr) : Basic<T>(Qt::Uninitialized) // throws
+        { internalConstruct(ptr); }
+        template <typename Deleter>
+        inline ExternalRefCount(T *ptr, Deleter deleter) : Basic<T>(Qt::Uninitialized) // throws
+        { internalConstruct(ptr, deleter); }
+
         inline ExternalRefCount(const ExternalRefCount<T> &other) : Basic<T>(other), d(other.d)
         { if (d) ref(); }
         template <class X>
@@ -448,11 +455,12 @@ public:
     inline QSharedPointer() { }
     // inline ~QSharedPointer() { }
 
-    inline explicit QSharedPointer(T *ptr) : BaseClass(Qt::Uninitialized)
-    { BaseClass::internalConstruct(ptr); }
+    inline explicit QSharedPointer(T *ptr) : BaseClass(ptr) // throws
+    { }
 
     template <typename Deleter>
-    inline QSharedPointer(T *ptr, Deleter d) { BaseClass::internalConstruct(ptr, d); }
+    inline QSharedPointer(T *ptr, Deleter d) : BaseClass(ptr, d) // throws
+    { }
 
     inline QSharedPointer(const QSharedPointer<T> &other) : BaseClass(other) { }
     inline QSharedPointer<T> &operator=(const QSharedPointer<T> &other)
diff --git a/src/corelib/tools/qsimd.cpp b/src/corelib/tools/qsimd.cpp
index b2fe2da..63ebafb 100644
--- a/src/corelib/tools/qsimd.cpp
+++ b/src/corelib/tools/qsimd.cpp
@@ -135,7 +135,7 @@ static inline uint detectProcessorFeatures()
 #if defined(QT_HAVE_IWMMXT)
     // runtime detection only available when running as a previlegied process
     features = IWMMXT;
-#elif defined(QT_HAVE_NEON)
+#elif defined(QT_ALWAYS_HAVE_NEON)
     features = NEON;
 #endif
 
diff --git a/src/corelib/tools/qsimd_p.h b/src/corelib/tools/qsimd_p.h
index 664543b..2dbed76 100644
--- a/src/corelib/tools/qsimd_p.h
+++ b/src/corelib/tools/qsimd_p.h
@@ -87,9 +87,13 @@ QT_BEGIN_HEADER
 #include <tmmintrin.h>
 #endif
 
-// SSE4.1 and SSE4.2 intrinsics
-#if (defined(QT_HAVE_SSE4_1) || defined(QT_HAVE_SSE4_2)) && (defined(__SSE4_1__) || defined(Q_CC_MSVC))
+// SSE4.1 intrinsics
+#if defined(QT_HAVE_SSE4_1) && (defined(__SSE4_1__) || defined(Q_CC_MSVC))
 #include <smmintrin.h>
+#endif
+
+// SSE4.2 intrinsics
+#if defined(QT_HAVE_SSE4_2) && (defined(__SSE4_2__) || defined(Q_CC_MSVC))
 #include <nmmintrin.h>
 #endif
 
@@ -105,7 +109,8 @@ QT_BEGIN_HEADER
 #endif // defined(QT_HAVE_SSE2) && (defined(__SSE2__) || defined(Q_CC_MSVC))
 
 // NEON intrinsics
-#if defined(QT_HAVE_NEON)
+#if defined __ARM_NEON__
+#define QT_ALWAYS_HAVE_NEON
 #include <arm_neon.h>
 #endif
 
diff --git a/src/corelib/tools/qsize.cpp b/src/corelib/tools/qsize.cpp
index 20ac344..12287ab 100644
--- a/src/corelib/tools/qsize.cpp
+++ b/src/corelib/tools/qsize.cpp
@@ -492,9 +492,13 @@ QDebug operator<<(QDebug dbg, const QSize &s) {
 /*!
     \fn bool QSizeF::isNull() const
 
-    Returns true if both the width and height is 0; otherwise returns
+    Returns true if both the width and height are +0.0; otherwise returns
     false.
 
+    \note Since this function treats +0.0 and -0.0 differently, sizes with
+    zero width and height where either or both values have a negative
+    sign are not defined to be null sizes.
+
     \sa isValid(), isEmpty()
 */
 
diff --git a/src/corelib/tools/qstring.cpp b/src/corelib/tools/qstring.cpp
index 8083aee..114c4ee 100644
--- a/src/corelib/tools/qstring.cpp
+++ b/src/corelib/tools/qstring.cpp
@@ -567,7 +567,7 @@ const QString::Null QString::null = { };
     strings from a string list that contain a particular substring or
     that match a particular QRegExp using the QStringList::filter()
     function.
-:
+
     \section1 Querying String Data
 
     If you want to see if a QString starts or ends with a particular
@@ -3573,7 +3573,7 @@ static QByteArray toLatin1_helper(const QChar *data, int length)
             }
             length = length % 16;
         }
-#elif QT_HAVE_NEON
+#elif defined(QT_ALWAYS_HAVE_NEON)
         // Refer to the documentation of the SSE2 implementation
         // this use eactly the same method as for SSE except:
         // 1) neon has unsigned comparison