icc.test.cc

/**************************************************************************
 * basf2 (Belle II Analysis Software Framework)                           *
 * Author: The Belle II Collaboration                                     *
 *                                                                        *
 * See git log for contributors and copyright holders.                    *
 * This file is licensed under LGPL-3.0, see LICENSE.md.                  *
 **************************************************************************/
 
/*
This file tests whether the C++ compiler of Intel implements C++.
*/
 
#include <gtest/gtest.h>
 
namespace {
 
  template<class T>
  class Wrapper {
 
  public:
    explicit Wrapper(T t) : m_t(t)
    {}
 
  public:
    /*explicit*/ operator T& ()
    { return m_t; }
 
  private:
    T m_t;
  };
 
  TEST(IntelCompiler, static_cast_calls_conversion_operator_template)
  {
    Wrapper<int> wrappedInt(6);
 
    int& i1(wrappedInt.operator int& ());
    int& i2(static_cast<int&>(wrappedInt));
    int& i3(wrappedInt);
 
    EXPECT_EQ(6, i1);
    EXPECT_EQ(6, i2);
    EXPECT_EQ(6, i3);
  }
 
 
  class IntWrapper {
 
  public:
    explicit IntWrapper(int t) : m_t(t)
    {}
 
  public:
    /*explicit*/ operator int& ()
    { return m_t; }
 
  private:
    int m_t;
  };
 
  TEST(IntelCompiler, static_cast_calls_conversion_operator_notemplate)
  {
    IntWrapper wrappedInt(6);
 
    int& i1(wrappedInt.operator int& ());
    int& i2(static_cast<int&>(wrappedInt));
    int& i3(wrappedInt);
 
    EXPECT_EQ(6, i1);
    EXPECT_EQ(6, i2);
    EXPECT_EQ(6, i3);
  }
 
}