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#ifndef CHECK_H_
#define CHECK_H_
#include <cstdlib>
#include <ostream>
#include "internal_macros.h"
#include "log.h"
namespace benchmark {
namespace internal {
typedef void(AbortHandlerT)();
inline AbortHandlerT*& GetAbortHandler() {
static AbortHandlerT* handler = &std::abort;
return handler;
}
BENCHMARK_NORETURN inline void CallAbortHandler() {
GetAbortHandler()();
std::abort(); // fallback to enforce noreturn
}
// CheckHandler is the class constructed by failing 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. ";
}
std::ostream& GetLog() {
return log_;
}
BENCHMARK_NORETURN ~CheckHandler() BENCHMARK_NOEXCEPT_OP(false) {
log_ << std::endl;
CallAbortHandler();
}
CheckHandler & operator=(const CheckHandler&) = delete;
CheckHandler(const CheckHandler&) = delete;
CheckHandler() = delete;
private:
std::ostream& log_;
};
} // end namespace internal
} // end namespace benchmark
// The CHECK macro returns a std::ostream object that can have extra information
// written to it.
#ifndef NDEBUG
# define CHECK(b) (b ? ::benchmark::internal::GetNullLogInstance() \
: ::benchmark::internal::CheckHandler( \
#b, __FILE__, __func__, __LINE__).GetLog())
#else
# define CHECK(b) ::benchmark::internal::GetNullLogInstance()
#endif
#define CHECK_EQ(a, b) CHECK((a) == (b))
#define CHECK_NE(a, b) CHECK((a) != (b))
#define CHECK_GE(a, b) CHECK((a) >= (b))
#define CHECK_LE(a, b) CHECK((a) <= (b))
#define CHECK_GT(a, b) CHECK((a) > (b))
#define CHECK_LT(a, b) CHECK((a) < (b))
#endif // CHECK_H_
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