llvm/libc/src/stdio/printf_core/int_converter.h

//===-- Integer Converter for printf ----------------------------*- C++ -*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//

#ifndef LLVM_LIBC_SRC_STDIO_PRINTF_CORE_INT_CONVERTER_H
#define LLVM_LIBC_SRC_STDIO_PRINTF_CORE_INT_CONVERTER_H

#include "src/__support/CPP/span.h"
#include "src/__support/CPP/string_view.h"
#include "src/__support/integer_to_string.h"
#include "src/__support/macros/config.h"
#include "src/stdio/printf_core/converter_utils.h"
#include "src/stdio/printf_core/core_structs.h"
#include "src/stdio/printf_core/writer.h"

#include <inttypes.h>
#include <stddef.h>

namespace LIBC_NAMESPACE_DECL {
namespace printf_core {

// These functions only work on characters that are already known to be in the
// alphabet. Their behavior is undefined otherwise.
LIBC_INLINE constexpr char to_lower(char a) { … }
LIBC_INLINE constexpr bool is_lower(char a) { … }

namespace details {

using HexFmt = IntegerToString<uintmax_t, radix::Hex>;
using HexFmtUppercase = IntegerToString<uintmax_t, radix::Hex::Uppercase>;
using OctFmt = IntegerToString<uintmax_t, radix::Oct>;
using DecFmt = IntegerToString<uintmax_t>;
using BinFmt = IntegerToString<uintmax_t, radix::Bin>;

LIBC_INLINE constexpr size_t num_buf_size() { … }

LIBC_INLINE cpp::optional<cpp::string_view>
num_to_strview(uintmax_t num, cpp::span<char> bufref, char conv_name) { … }

} // namespace details

LIBC_INLINE int convert_int(Writer *writer, const FormatSection &to_conv) { … }

} // namespace printf_core
} // namespace LIBC_NAMESPACE_DECL

#endif // LLVM_LIBC_SRC_STDIO_PRINTF_CORE_INT_CONVERTER_H