1//===- EndianStream.h - Stream ops with endian specific data ----*- C++ -*-===// 2// 3// The LLVM Compiler Infrastructure 4// 5// This file is distributed under the University of Illinois Open Source 6// License. See LICENSE.TXT for details. 7// 8//===----------------------------------------------------------------------===// 9// 10// This file defines utilities for operating on streams that have endian 11// specific data. 12// 13//===----------------------------------------------------------------------===// 14 15#ifndef LLVM_SUPPORT_ENDIANSTREAM_H 16#define LLVM_SUPPORT_ENDIANSTREAM_H 17 18#include "llvm/ADT/ArrayRef.h" 19#include "llvm/Support/Endian.h" 20#include "llvm/Support/raw_ostream.h" 21 22namespace llvm { 23namespace support { 24 25namespace endian { 26/// Adapter to write values to a stream in a particular byte order. 27template <endianness endian> struct Writer { 28 raw_ostream &OS; 29 Writer(raw_ostream &OS) : OS(OS) {} 30 template <typename value_type> void write(ArrayRef<value_type> Vals) { 31 for (value_type V : Vals) 32 write(V); 33 } 34 template <typename value_type> void write(value_type Val) { 35 Val = byte_swap<value_type, endian>(Val); 36 OS.write((const char *)&Val, sizeof(value_type)); 37 } 38}; 39 40template <> 41template <> 42inline void Writer<little>::write<float>(float Val) { 43 write(FloatToBits(Val)); 44} 45 46template <> 47template <> 48inline void Writer<little>::write<double>(double Val) { 49 write(DoubleToBits(Val)); 50} 51 52template <> 53template <> 54inline void Writer<big>::write<float>(float Val) { 55 write(FloatToBits(Val)); 56} 57 58template <> 59template <> 60inline void Writer<big>::write<double>(double Val) { 61 write(DoubleToBits(Val)); 62} 63 64} // end namespace endian 65 66} // end namespace support 67} // end namespace llvm 68 69#endif 70