Mark the QArrayData alloc/dealloc functions as nothrow

Throwing is handled at a higher level.

Change-Id: I573e4ded135b61e35fbe6e188be09acf449911fc
Reviewed-by: Marc Mutz <marc.mutz@kdab.com>

src/corelib/tools/qarraydata.cpp

@@ -68,7 +68,7 @@ static const QArrayData &qt_array_empty = qt_array[0];
 static const QArrayData &qt_array_unsharable_empty = qt_array[1];
 
 QArrayData *QArrayData::allocate(size_t objectSize, size_t alignment,
-        size_t capacity, AllocationOptions options)
+        size_t capacity, AllocationOptions options) Q_DECL_NOTHROW
 {
     // Alignment is a power of two
     Q_ASSERT(alignment >= Q_ALIGNOF(QArrayData)
@@ -111,7 +111,7 @@ QArrayData *QArrayData::allocate(size_t objectSize, size_t alignment,
 }
 
 void QArrayData::deallocate(QArrayData *data, size_t objectSize,
-        size_t alignment)
+        size_t alignment) Q_DECL_NOTHROW
 {
     // Alignment is a power of two
     Q_ASSERT(alignment >= Q_ALIGNOF(QArrayData)

src/corelib/tools/qarraydata.h

@@ -116,9 +116,9 @@ struct Q_CORE_EXPORT QArrayData
 
     static QArrayData *allocate(size_t objectSize, size_t alignment,
             size_t capacity, AllocationOptions options = Default)
-        Q_REQUIRED_RESULT;
+        Q_DECL_NOTHROW Q_REQUIRED_RESULT;
     static void deallocate(QArrayData *data, size_t objectSize,
-            size_t alignment);
+            size_t alignment) Q_DECL_NOTHROW;
 
     static const QArrayData shared_null[2];
     static QArrayData *sharedNull() { return const_cast<QArrayData*>(shared_null); }

src/corelib/tools/qbytearray.cpp

@@ -67,7 +67,7 @@ int qFindByteArray(
     const char *needle0, int needleLen);
 
 
-int qAllocMore(int alloc, int extra)
+int qAllocMore(int alloc, int extra) Q_DECL_NOTHROW
 {
     Q_ASSERT(alloc >= 0 && extra >= 0);
     Q_ASSERT_X(alloc < (1 << 30) - extra, "qAllocMore", "Requested size is too large!");

src/corelib/tools/qtools_p.h

@@ -58,7 +58,7 @@
 QT_BEGIN_NAMESPACE
 
 // implemented in qbytearray.cpp
-int Q_CORE_EXPORT qAllocMore(int alloc, int extra);
+int Q_CORE_EXPORT qAllocMore(int alloc, int extra) Q_DECL_NOTHROW;
 
 QT_END_NAMESPACE