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constrain calculate_stddev with std::ranges::input_range + std::is_arithmetic_v #150

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constrain calculate_stddev with std::ranges::input_range + std::is_arithmetic_v #150

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7 changes: 5 additions & 2 deletions rttest/include/rttest/math_utils.hpp
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Expand Up @@ -18,10 +18,13 @@
#include <algorithm>
#include <cmath>
#include <numeric>
#include <ranges>
#include <type_traits>
#include <vector>

template<typename container>
double calculate_stddev(const container & vec)
template<std::ranges::input_range Container>
requires std::is_arithmetic_v<std::ranges::range_value_t<Container>>
double calculate_stddev(const Container & vec)
{
double n = vec.size();
double mean = std::accumulate(
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