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-rw-r--r--kcontrol/background/bghash.h22
1 files changed, 22 insertions, 0 deletions
diff --git a/kcontrol/background/bghash.h b/kcontrol/background/bghash.h
new file mode 100644
index 000000000..932c6ebab
--- /dev/null
+++ b/kcontrol/background/bghash.h
@@ -0,0 +1,22 @@
+#ifndef BGHASH_H
+#define BGHASH_H
+
+/*
+ * QString -> int hash. From Qt's QGDict::hashKeyString().
+ */
+
+static int QHash(QString key)
+{
+ int g, h = 0;
+ const QChar *p = key.unicode();
+ for (unsigned i=0; i < key.length(); i++) {
+ h = (h << 4) + p[i].cell();
+ if ((g = (h & 0xf0000000)))
+ h ^= (g >> 24);
+ h &= ~g;
+ }
+ return h;
+}
+
+#endif
+