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string_util.h
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Tue, May 7, 03:56

string_util.h
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#ifndef BENCHMARK_STRING_UTIL_H_
#define BENCHMARK_STRING_UTIL_H_
#include <sstream>
#include <string>
#include <utility>
#include <vector>
#include "benchmark/export.h"
#include "check.h"
#include "internal_macros.h"
namespace benchmark {
void AppendHumanReadable(int n, std::string* str);
std::string HumanReadableNumber(double n, double one_k = 1024.0);
BENCHMARK_EXPORT
#if defined(__MINGW32__)
__attribute__((format(__MINGW_PRINTF_FORMAT, 1, 2)))
#elif defined(__GNUC__)
__attribute__((format(printf, 1, 2)))
#endif
std::string
StrFormat(const char* format, ...);
inline std::ostream& StrCatImp(std::ostream& out) BENCHMARK_NOEXCEPT {
return out;
}
template <class First, class... Rest>
inline std::ostream& StrCatImp(std::ostream& out, First&& f, Rest&&... rest) {
out << std::forward<First>(f);
return StrCatImp(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.
*/
unsigned long stoul(const std::string& str, size_t* pos = nullptr,
int base = 10);
int stoi(const std::string& str, size_t* pos = nullptr, int base = 10);
double stod(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_

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