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RocksDB for Erlang

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rocksdb deps snappy third_party benchmark src check.h
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deps/snappy/third_party/benchmark/src/check.h 

#ifndef CHECK_H_

#define CHECK_H_



#include <cmath>

#include <cstdlib>

#include <ostream>



#include "benchmark/export.h"

#include "internal_macros.h"

#include "log.h"



#if defined(__GNUC__) || defined(__clang__)

#define BENCHMARK_NOEXCEPT noexcept

#define BENCHMARK_NOEXCEPT_OP(x) noexcept(x)

#elif defined(_MSC_VER) && !defined(__clang__)

#if _MSC_VER >= 1900

#define BENCHMARK_NOEXCEPT noexcept

#define BENCHMARK_NOEXCEPT_OP(x) noexcept(x)

#else

#define BENCHMARK_NOEXCEPT

#define BENCHMARK_NOEXCEPT_OP(x)

#endif

#define __func__ __FUNCTION__

#else

#define BENCHMARK_NOEXCEPT

#define BENCHMARK_NOEXCEPT_OP(x)

#endif



namespace benchmark {

namespace internal {



typedef void(AbortHandlerT)();



BENCHMARK_EXPORT

AbortHandlerT*& GetAbortHandler();



BENCHMARK_NORETURN inline void CallAbortHandler() {

  GetAbortHandler()();

  std::abort();  // fallback to enforce noreturn

}



// CheckHandler is the class constructed by failing BM_CHECK macros.

// CheckHandler will log information about the failures and abort when it is

// destructed.

class CheckHandler {

 public:

  CheckHandler(const char* check, const char* file, const char* func, int line)

      : log_(GetErrorLogInstance()) {

    log_ << file << ":" << line << ": " << func << ": Check `" << check

         << "' failed. ";

  }



  LogType& GetLog() { return log_; }



#if defined(COMPILER_MSVC)

#pragma warning(push)

#pragma warning(disable : 4722)

#endif

  BENCHMARK_NORETURN ~CheckHandler() BENCHMARK_NOEXCEPT_OP(false) {

    log_ << std::endl;

    CallAbortHandler();

  }

#if defined(COMPILER_MSVC)

#pragma warning(pop)

#endif



  CheckHandler& operator=(const CheckHandler&) = delete;

  CheckHandler(const CheckHandler&) = delete;

  CheckHandler() = delete;



 private:

  LogType& log_;

};



}  // end namespace internal

}  // end namespace benchmark



// The BM_CHECK macro returns a std::ostream object that can have extra

// information written to it.

#ifndef NDEBUG

#define BM_CHECK(b)                                                          \

  (b ? ::benchmark::internal::GetNullLogInstance()                           \

     : ::benchmark::internal::CheckHandler(#b, __FILE__, __func__, __LINE__) \

           .GetLog())

#else

#define BM_CHECK(b) ::benchmark::internal::GetNullLogInstance()

#endif



// clang-format off

// preserve whitespacing between operators for alignment

#define BM_CHECK_EQ(a, b) BM_CHECK((a) == (b))

#define BM_CHECK_NE(a, b) BM_CHECK((a) != (b))

#define BM_CHECK_GE(a, b) BM_CHECK((a) >= (b))

#define BM_CHECK_LE(a, b) BM_CHECK((a) <= (b))

#define BM_CHECK_GT(a, b) BM_CHECK((a) > (b))

#define BM_CHECK_LT(a, b) BM_CHECK((a) < (b))



#define BM_CHECK_FLOAT_EQ(a, b, eps) BM_CHECK(std::fabs((a) - (b)) <  (eps))

#define BM_CHECK_FLOAT_NE(a, b, eps) BM_CHECK(std::fabs((a) - (b)) >= (eps))

#define BM_CHECK_FLOAT_GE(a, b, eps) BM_CHECK((a) - (b) > -(eps))

#define BM_CHECK_FLOAT_LE(a, b, eps) BM_CHECK((b) - (a) > -(eps))

#define BM_CHECK_FLOAT_GT(a, b, eps) BM_CHECK((a) - (b) >  (eps))

#define BM_CHECK_FLOAT_LT(a, b, eps) BM_CHECK((b) - (a) >  (eps))

//clang-format on



#endif  // CHECK_H_