makeTransformedSpanDocumentation1TestClass Struct Reference

Public Member Functions
float	accumulate (std::vector< std::unique_ptr< float >> const &v)
void	scale (std::vector< std::unique_ptr< float >> &v, float factor)
void	analyse_accumulate ()
void	analyse_scale ()
void	analyse ()

Detailed Description

Definition at line 290 of file span_test.cc.

Member Function Documentation

float makeTransformedSpanDocumentation1TestClass::accumulate ( std::vector< std::unique_ptr< float >> const &  v )

inline

Definition at line 304 of file span_test.cc.

    {
      float sum = 0.0F;
      for (float v: util::make_transformed_span(v, [](auto& ptr){ return *ptr; }))
        sum += v;

      return sum;
    } // accumulate()

void makeTransformedSpanDocumentation1TestClass::analyse ( )

inline

Definition at line 362 of file span_test.cc.

      {
        analyse_accumulate();
        analyse_scale();
      }

void makeTransformedSpanDocumentation1TestClass::analyse_accumulate ( )

inline

Definition at line 330 of file span_test.cc.

    {
      float const salt = 3.0;
      constexpr std::size_t N = 10;

      std::vector<std::unique_ptr<float>> data;
      for (auto i: util::counter(N))
        data.push_back(std::make_unique<float>(salt * i));

      float sum = accumulate(data);
      float const expectedSum = (N * (N - 1) / 2) * salt;

      BOOST_TEST(sum == expectedSum);

    } // analyse_accumulate()

void makeTransformedSpanDocumentation1TestClass::analyse_scale ( )

inline

Definition at line 346 of file span_test.cc.

    {
      constexpr std::size_t N = 10;
      const float factor = 3.0F;

      std::vector<std::unique_ptr<float>> data;
      for (auto i: util::counter(N))
        data.push_back(std::make_unique<float>(i));

      scale(data, factor);

      for (auto&& [ i, ptr ]: util::enumerate(data))
        BOOST_TEST(*ptr == factor * i);

    } // analyse_scale()

void makeTransformedSpanDocumentation1TestClass::scale ( std::vector< std::unique_ptr< float >> &  v, float  factor  )

inline

Definition at line 322 of file span_test.cc.

    {

      for (float& v: util::make_transformed_span(v, [](auto& ptr) -> float& { return *ptr; }))
        v *= factor;

    } // scale()

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The documentation for this struct was generated from the following file:

• larcorealg/test/CoreUtils/span_test.cc