1 files changed, 49 insertions, 0 deletions
diff --git a/src/qdoc/catch_generators/src/catch_generators/utilities/statistics/percentages.h b/src/qdoc/catch_generators/src/catch_generators/utilities/statistics/percentages.h
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index 000000000..2d80a459f
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+++ b/src/qdoc/catch_generators/src/catch_generators/utilities/statistics/percentages.h
@@ -0,0 +1,49 @@
+// Copyright (C) 2022 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
+
+#pragma once
+
+#include "../../namespaces.h"
+
+#include <cassert>
+
+namespace QDOC_CATCH_GENERATORS_UTILITIES_ABSOLUTE_NAMESPACE {
+
+    /*!
+     * Returns the percentage of \amount over \a total.
+     *
+     * \a amount needs to be greater or equal to zero and \a total
+     * needs to be greater than zero.
+     */
+    inline double percent_of(double amount, double total) {
+        assert(amount >= 0.0);
+        assert(total > 0.0);
+
+        return (amount / total) * 100.0;
+    }
+
+    /*!
+     * Given the cardinality of a set, returns the percentage
+     * probability that applied to every element of the set generates
+     * a uniform distribution.
+     */
+    inline double uniform_probability(std::size_t cardinality) {
+        assert(cardinality > 0);
+
+        return (100.0 / static_cast<double>(cardinality));
+    }
+
+    /*!
+     * Returns a percentage probability that is equal to \a
+     * probability.
+     *
+     * \a probability must be in the range [0.0, 1.0]
+     */
+    inline double probability_to_percentage(double probability) {
+        assert(probability >= 0.0);
+        assert(probability <= 1.0);
+
+        return probability * 100.0;
+    }
+
+} // end QDOC_CATCH_GENERATORS_UTILITIES_ABSOLUTE_NAMESPACE