1#ifndef BENCHMARK_STRING_UTIL_H_
2#define BENCHMARK_STRING_UTIL_H_
3
4#include <sstream>
5#include <string>
6#include <utility>
7
8#include "internal_macros.h"
9
10namespace benchmark {
11
12void AppendHumanReadable(int n, std::string* str);
13
14std::string HumanReadableNumber(double n, double one_k = 1024.0);
15
16#if defined(__MINGW32__)
17__attribute__((format(__MINGW_PRINTF_FORMAT, 1, 2)))
18#elif defined(__GNUC__)
19__attribute__((format(printf, 1, 2)))
20#endif
21std::string
22StrFormat(const char* format, ...);
23
24inline std::ostream& StrCatImp(std::ostream& out) BENCHMARK_NOEXCEPT {
25 return out;
26}
27
28template <class First, class... Rest>
29inline std::ostream& StrCatImp(std::ostream& out, First&& f, Rest&&... rest) {
30 out << std::forward<First>(f);
31 return StrCatImp(out, std::forward<Rest>(rest)...);
32}
33
34template <class... Args>
35inline std::string StrCat(Args&&... args) {
36 std::ostringstream ss;
37 StrCatImp(ss, std::forward<Args>(args)...);
38 return ss.str();
39}
40
41std::vector<std::string> StrSplit(const std::string& str, char delim);
42
43// Disable lint checking for this block since it re-implements C functions.
44// NOLINTBEGIN
45#ifdef BENCHMARK_STL_ANDROID_GNUSTL
46/*
47 * GNU STL in Android NDK lacks support for some C++11 functions, including
48 * stoul, stoi, stod. We reimplement them here using C functions strtoul,
49 * strtol, strtod. Note that reimplemented functions are in benchmark::
50 * namespace, not std:: namespace.
51 */
52unsigned long stoul(const std::string& str, size_t* pos = nullptr,
53 int base = 10);
54int stoi(const std::string& str, size_t* pos = nullptr, int base = 10);
55double stod(const std::string& str, size_t* pos = nullptr);
56#else
57using std::stod; // NOLINT(misc-unused-using-decls)
58using std::stoi; // NOLINT(misc-unused-using-decls)
59using std::stoul; // NOLINT(misc-unused-using-decls)
60#endif
61// NOLINTEND
62
63} // end namespace benchmark
64
65#endif // BENCHMARK_STRING_UTIL_H_
66