| // Copyright 2023 Google LLC |
| // Licensed under the Apache License, Version 2.0, see LICENSE for details. |
| // SPDX-License-Identifier: Apache-2.0 |
| |
| #ifndef CRT_PRINTF_TRAITS_H_ |
| #define CRT_PRINTF_TRAITS_H_ |
| |
| #include <cstdint> |
| |
| // Intentionally left empty, so that |
| // types without an implementation will cause |
| // a compile failure. |
| template <typename T> |
| struct PrintfTraits { |
| }; |
| |
| template <> |
| struct PrintfTraits<int8_t> { |
| static constexpr const char* kFmt = "%d"; |
| static constexpr const char* kFmtHex = "0x%hhx"; |
| }; |
| |
| template <> |
| struct PrintfTraits<int16_t> { |
| static constexpr const char* kFmt = "%hd"; |
| static constexpr const char* kFmtHex = "0x%hx"; |
| }; |
| |
| template <> |
| struct PrintfTraits<int32_t> { |
| static constexpr const char* kFmt = "%ld"; |
| static constexpr const char* kFmtHex = "0x%lx"; |
| }; |
| |
| template <> |
| struct PrintfTraits<uint8_t> { |
| static constexpr const char* kFmt = "%u"; |
| static constexpr const char* kFmtHex = "0x%hhx"; |
| }; |
| |
| template <> |
| struct PrintfTraits<uint16_t> { |
| static constexpr const char* kFmt = "%hu"; |
| static constexpr const char* kFmtHex = "0x%hx"; |
| }; |
| |
| template <> |
| struct PrintfTraits<uint32_t> { |
| static constexpr const char* kFmt = "%lu"; |
| static constexpr const char* kFmtHex = "0x%lx"; |
| }; |
| |
| #endif // CRT_PRINTF_TRAITS_H_ |