llvm-6502/include/llvm/Support/EndianStream.h
Matt Arsenault 7575430de4 Add support for double / float to EndianStream
Also add new unit tests for endian::Writer

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@228269 91177308-0d34-0410-b5e6-96231b3b80d8
2015-02-05 03:30:08 +00:00

65 lines
1.5 KiB
C++

//===- EndianStream.h - Stream ops with endian specific data ----*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// 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/Support/Endian.h"
#include "llvm/Support/raw_ostream.h"
namespace llvm {
namespace support {
namespace endian {
/// Adapter to write values to a stream in a particular byte order.
template <endianness endian> struct Writer {
raw_ostream &OS;
Writer(raw_ostream &OS) : OS(OS) {}
template <typename value_type> void write(value_type Val) {
Val = byte_swap<value_type, endian>(Val);
OS.write((const char *)&Val, sizeof(value_type));
}
};
template <>
template <>
inline void Writer<little>::write<float>(float Val) {
write(FloatToBits(Val));
}
template <>
template <>
inline void Writer<little>::write<double>(double Val) {
write(DoubleToBits(Val));
}
template <>
template <>
inline void Writer<big>::write<float>(float Val) {
write(FloatToBits(Val));
}
template <>
template <>
inline void Writer<big>::write<double>(double Val) {
write(DoubleToBits(Val));
}
} // end namespace endian
} // end namespace support
} // end namespace llvm
#endif