string_util.h

#ifndef BENCHMARK_STRING_UTIL_H_
#defineBENCHMARK_STRING_UTIL_H_

#include<sstream>
#include<string>
#include<utility>
#include<vector>

#include"benchmark/benchmark.h"
#include"benchmark/export.h"
#include"check.h"
#include"internal_macros.h"

namespacebenchmark {

BENCHMARK_EXPORT
std::string HumanReadableNumber(double n, Counter::OneK one_k);

BENCHMARK_EXPORT
#if defined(__MINGW32__)
__attribute__((format(__MINGW_PRINTF_FORMAT, 1, 2)))
#elif defined(__GNUC__)
__attribute__((format(printf, 1, 2)))
#endif
std::string
StrFormat(constchar* format, ...);

inline std::ostream& StrCatImp(std::ostream& out) BENCHMARK_NOEXCEPT {
return out;
}

template <classFirst, class... Rest>
inline std::ostream& StrCatImp(std::ostream& out, First&& f, Rest&&... rest) {
 out << std::forward<First>(f);
returnStrCatImp(out, std::forward<Rest>(rest)...);
}

template <class... Args>
inline std::string StrCat(Args&&... args) {
 std::ostringstream ss;
StrCatImp(ss, std::forward<Args>(args)...);
return ss.str();
}

BENCHMARK_EXPORT
std::vector<std::string> StrSplit(const std::string& str, char delim);

// Disable lint checking for this block since it re-implements C functions.
// NOLINTBEGIN
#ifdef BENCHMARK_STL_ANDROID_GNUSTL
/*
 * GNU STL in Android NDK lacks support for some C++11 functions, including
 * stoul, stoi, stod. We reimplement them here using C functions strtoul,
 * strtol, strtod. Note that reimplemented functions are in benchmark::
 * namespace, not std:: namespace.
*/
unsignedlongstoul(const std::string& str, size_t* pos = nullptr,
int base = 10);
intstoi(const std::string& str, size_t* pos = nullptr, int base = 10);
doublestod(const std::string& str, size_t* pos = nullptr);
#else
using std::stod; // NOLINT(misc-unused-using-decls)
using std::stoi; // NOLINT(misc-unused-using-decls)
using std::stoul; // NOLINT(misc-unused-using-decls)
#endif
// NOLINTEND

} // end namespace benchmark

#endif// BENCHMARK_STRING_UTIL_H_