| //===- EndianStream.h - Stream ops with endian specific data ----*- 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 |
| // |
| //===----------------------------------------------------------------------===// |
| // |
| // This file defines utilities for operating on streams that have endian |
| // specific data. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #ifndef LLVM_SUPPORT_ENDIANSTREAM_H |
| #define LLVM_SUPPORT_ENDIANSTREAM_H |
| |
| #include "llvm/ADT/ArrayRef.h" |
| #include "llvm/Support/Endian.h" |
| #include "llvm/Support/raw_ostream.h" |
| |
| namespace llvm { |
| namespace support { |
| |
| namespace endian { |
| |
| template <typename value_type> |
| inline void write(raw_ostream &os, value_type value, endianness endian) { |
| value = byte_swap<value_type>(value, endian); |
| os.write((const char *)&value, sizeof(value_type)); |
| } |
| |
| template <> |
| inline void write<float>(raw_ostream &os, float value, endianness endian) { |
| write(os, FloatToBits(value), endian); |
| } |
| |
| template <> |
| inline void write<double>(raw_ostream &os, double value, |
| endianness endian) { |
| write(os, DoubleToBits(value), endian); |
| } |
| |
| template <typename value_type> |
| inline void write(raw_ostream &os, ArrayRef<value_type> vals, |
| endianness endian) { |
| for (value_type v : vals) |
| write(os, v, endian); |
| } |
| |
| /// Adapter to write values to a stream in a particular byte order. |
| struct Writer { |
| raw_ostream &OS; |
| endianness Endian; |
| Writer(raw_ostream &OS, endianness Endian) : OS(OS), Endian(Endian) {} |
| template <typename value_type> void write(ArrayRef<value_type> Val) { |
| endian::write(OS, Val, Endian); |
| } |
| template <typename value_type> void write(value_type Val) { |
| endian::write(OS, Val, Endian); |
| } |
| }; |
| |
| } // end namespace endian |
| |
| } // end namespace support |
| } // end namespace llvm |
| |
| #endif |