basic_format_context.hpp

Go to the documentation of this file.

// SPDX-License-Identifier: BSL-1.0
 
#ifndef TETL_FORMAT_BASIC_FORMAT_CONTEXT_HPP
#define TETL_FORMAT_BASIC_FORMAT_CONTEXT_HPP
 
#include <etl/_format/fmt_buffer.hpp>
#include <etl/_iterator/back_insert_iterator.hpp>
 
namespace etl {
template <typename T, typename CharT>
struct formatter;

template <typename OutputIt, typename CharT>
struct basic_format_context {
    using iterator  = OutputIt;
    using char_type = CharT;
 
    explicit constexpr basic_format_context(OutputIt pos) noexcept
        : _pos{pos}
    {
    }
 
    template <typename T>
    using formatter_type = formatter<T, CharT>;

    [[nodiscard]] constexpr auto out() noexcept -> iterator { return _pos; }

    constexpr auto advance_to(iterator it) noexcept -> void { _pos = it; }
 
private:
    OutputIt _pos;
};

using format_context  = basic_format_context<back_insert_iterator<detail::fmt_buffer<char>>, char>;
using wformat_context = basic_format_context<back_insert_iterator<detail::fmt_buffer<wchar_t>>, wchar_t>;
 
} // namespace etl
 
#endif // TETL_FORMAT_BASIC_FORMAT_CONTEXT_HPP