From bc524d70253a4ab2fe40c3ca3e5666e267c0a4d1 Mon Sep 17 00:00:00 2001
From: Lexi Winter <lexi@le-fay.org>
Date: Sun, 29 Jun 2025 19:25:29 +0100
Subject: import catch2 3.8.1

---
 src/catch2/benchmark/detail/catch_stats.hpp | 60 +++++++++++++++++++++++++++++
 1 file changed, 60 insertions(+)
 create mode 100644 src/catch2/benchmark/detail/catch_stats.hpp

(limited to 'src/catch2/benchmark/detail/catch_stats.hpp')

diff --git a/src/catch2/benchmark/detail/catch_stats.hpp b/src/catch2/benchmark/detail/catch_stats.hpp
new file mode 100644
index 0000000..3bea612
--- /dev/null
+++ b/src/catch2/benchmark/detail/catch_stats.hpp
@@ -0,0 +1,60 @@
+
+//              Copyright Catch2 Authors
+// Distributed under the Boost Software License, Version 1.0.
+//   (See accompanying file LICENSE.txt or copy at
+//        https://www.boost.org/LICENSE_1_0.txt)
+
+// SPDX-License-Identifier: BSL-1.0
+// Adapted from donated nonius code.
+
+#ifndef CATCH_STATS_HPP_INCLUDED
+#define CATCH_STATS_HPP_INCLUDED
+
+#include <catch2/benchmark/catch_estimate.hpp>
+#include <catch2/benchmark/catch_outlier_classification.hpp>
+
+#include <vector>
+
+namespace Catch {
+    namespace Benchmark {
+        namespace Detail {
+            using sample = std::vector<double>;
+
+            double weighted_average_quantile( int k,
+                                              int q,
+                                              double* first,
+                                              double* last );
+
+            OutlierClassification
+            classify_outliers( double const* first, double const* last );
+
+            double mean( double const* first, double const* last );
+
+            double normal_cdf( double x );
+
+            double erfc_inv(double x);
+
+            double normal_quantile(double p);
+
+            Estimate<double>
+            bootstrap( double confidence_level,
+                       double* first,
+                       double* last,
+                       sample const& resample,
+                       double ( *estimator )( double const*, double const* ) );
+
+            struct bootstrap_analysis {
+                Estimate<double> mean;
+                Estimate<double> standard_deviation;
+                double outlier_variance;
+            };
+
+            bootstrap_analysis analyse_samples(double confidence_level,
+                                               unsigned int n_resamples,
+                                               double* first,
+                                               double* last);
+        } // namespace Detail
+    } // namespace Benchmark
+} // namespace Catch
+
+#endif // CATCH_STATS_HPP_INCLUDED
-- 
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