format.hpp

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// Copyright (c) Lawrence Livermore National Security, LLC and
// other Smith Project Developers. See the top-level LICENSE file for
// details.
//
// SPDX-License-Identifier: (BSD-3-Clause)
 
#pragma once
 
#include <format>
#include <sstream>
#include <string>
#include <string_view>
 
namespace smith::format {
 
template <typename T>
std::string streamed(const T& value)
{
  std::ostringstream stream;
  stream << value;
  return stream.str();
}
 
struct OstreamFormatter {
  constexpr auto parse(std::format_parse_context& ctx) const { return ctx.begin(); }
 
  template <typename T>
  auto format(const T& value, std::format_context& ctx) const
  {
    return std::formatter<std::string_view>{}.format(streamed(value), ctx);
  }
};
 
}  // namespace smith::format