1 files changed, 22 insertions, 0 deletions
diff --git a/src/core/bufferfragment_p.h b/src/core/bufferfragment_p.h
index e2154a59..a86e2922 100644
--- a/src/core/bufferfragment_p.h
+++ b/src/core/bufferfragment_p.h
@@ -150,6 +150,11 @@ public:
         return (other.size() != (int)len || memcmp(d, other.constData(), len) != 0);
     }
 
+    bool operator==(const BufferFragment &other) const
+    {
+        return other.len == len && !memcmp(d, other.d, len);
+    }
+
     int indexOf(char c, unsigned int from = 0) const
     {
         const char *cursor = d + from - 1;
@@ -190,4 +195,21 @@ private:
     unsigned int len;
 };
 
+uint qHash(const KConfigIniBackend::BufferFragment &fragment)
+{
+    const uchar *p = reinterpret_cast<const uchar*>(fragment.constData());
+    const int len = fragment.length();
+
+    // This algorithm is copied from qhash.cpp (Qt5 version).
+    // Sadly this code is not accessible from the outside without going through abstraction
+    // layers. Even QByteArray::fromRawData would do an allocation internally...
+    uint h = 0;
+
+    for (int i = 0; i < len; ++i) {
+        h = 31 * h + p[i];
+    }
+
+    return h;
+}
+
 #endif