chromium/third_party/fast_float/src/tests/powersoffive_hardround.cpp

#include "fast_float/fast_float.h"

#include <ios>
#include <iostream>
#include <random>
#include <sstream>
#include <string>
#include <system_error>
#include <utility>
#include <vector>

#if defined(__CYGWIN__) || defined(__MINGW32__) || defined(__MINGW64__) ||     \
    defined(sun) || defined(__sun)
// Anything at all that is related to cygwin, msys and so forth will
// always use this fallback because we cannot rely on it behaving as normal
// gcc.
#include <locale>
// workaround for CYGWIN
double cygwin_strtod_l(const char *start, char **end) {
  double d;
  std::stringstream ss;
  ss.imbue(std::locale::classic());
  ss << start;
  ss >> d;
  if (ss.fail()) {
    *end = nullptr;
  }
  if (ss.eof()) {
    ss.clear();
  }
  auto nread = ss.tellg();
  *end = const_cast<char *>(start) + nread;
  return d;
}
float cygwin_strtof_l(const char *start, char **end) {
  float d;
  std::stringstream ss;
  ss.imbue(std::locale::classic());
  ss << start;
  ss >> d;
  if (ss.fail()) {
    *end = nullptr;
  }
  if (ss.eof()) {
    ss.clear();
  }
  auto nread = ss.tellg();
  *end = const_cast<char *>(start) + nread;
  return d;
}
#endif

std::pair<double, bool> strtod_from_string(const char *st) { … }

std::pair<float, bool> strtof_from_string(char *st) { … }

bool tester() { … }

int main() { … }