1 files changed, 31 insertions, 0 deletions
diff --git a/src/corelib/tools/qtools_p.h b/src/corelib/tools/qtools_p.h
index 3876d3822c..53d5228c3b 100644
--- a/src/corelib/tools/qtools_p.h
+++ b/src/corelib/tools/qtools_p.h
@@ -46,9 +46,40 @@
 //
 
 #include "QtCore/qglobal.h"
+#include <limits>
 
 QT_BEGIN_NAMESPACE
 
+namespace QtMiscUtils {
+inline char toHexUpper(uint value)
+{
+    static const char hexdigits[] = "0123456789ABCDEF";
+    return hexdigits[value & 0xF];
+}
+
+inline char toHexLower(uint value)
+{
+    static const char hexdigits[] = "0123456789abcdef";
+    return hexdigits[value & 0xF];
+}
+
+inline int fromHex(uint c)
+{
+    if ((c >= '0') && (c <= '9'))
+        return c - '0';
+    if ((c >= 'A') && (c <= 'F'))
+        return c - 'A' + 10;
+    if ((c >= 'a') && (c <= 'f'))
+        return c - 'a' + 10;
+    return -1;
+}
+}
+
+// We typically need an extra bit for qNextPowerOfTwo when determining the next allocation size.
+enum {
+    MaxAllocSize = (1 << (std::numeric_limits<int>::digits - 1)) - 1
+};
+
 // implemented in qbytearray.cpp
 int Q_CORE_EXPORT qAllocMore(int alloc, int extra) Q_DECL_NOTHROW;