INIファイルからkeyvalのmapを作る

CreateMapFromIni.cc

#include <map>
#include <string>

std::map<std::string, std::map<std::string, std::string>>
GetPrivateProfileMap(std::string inifile)
{
  std::map<std::string, std::map<std::string, std::string>> mainmap;
  char sections[8192], keys[8192], value[8192];
  ::GetPrivateProfileString(NULL, NULL, "", sections, sizeof(sections), inifile.c_str());
  char* section = sections;
  while (*section) {
    std::map<std::string, std::string> keyval;
    ::GetPrivateProfileString(section, NULL, "", keys, sizeof(keys), inifile.c_str());
    char* key = keys;
    while (*key) {
      ::GetPrivateProfileString(section, key, "", value, sizeof(value), inifile.c_str());
      keyval.insert(std::make_pair(std::string(key), std::string(value)));
      key += strlen(key) + 1;
    }
    mainmap.insert(std::make_pair(std::string(section), keyval));
    section += strlen(section) + 1;
  }
  return mainmap;
}