utils.hpp

#ifndef EXIV2_UTILS_HPP
#define EXIV2_UTILS_HPP
 
#include <string>
#include <string_view>
 
namespace Exiv2::Internal {
 
template <typename T>
constexpr bool startsWith(std::string_view s, T start) {
#ifdef __cpp_lib_starts_ends_with
  return s.starts_with(start);
#else
  return s.find(start) == 0;
#endif
}
 
template <typename T>
constexpr bool contains(std::string_view s, T c) {
#ifdef __cpp_lib_string_contains
  return s.contains(c);
#else
  return s.find(c) != std::string_view::npos;
#endif
}

std::string upper(const std::string& str);

std::string lower(const std::string& a);
 
}  // namespace Exiv2::Internal
 
#endif  // EXIV2_UTILS_HPP