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author | Justin Bogner <mail@justinbogner.com> | 2014-03-28 19:14:43 +0000 |
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committer | Justin Bogner <mail@justinbogner.com> | 2014-03-28 19:14:43 +0000 |
commit | a655710ce00ba8b82cdaac15d675c26f909bd7d2 (patch) | |
tree | 2c035acf0f84b6570bd09cec7c8f3414c55a6f49 /include/llvm/Support/EndianStream.h | |
parent | a53735bcf1fae56a81f1a83f6988ff4eb6577c5c (diff) | |
download | llvm-a655710ce00ba8b82cdaac15d675c26f909bd7d2.tar.gz llvm-a655710ce00ba8b82cdaac15d675c26f909bd7d2.tar.bz2 llvm-a655710ce00ba8b82cdaac15d675c26f909bd7d2.tar.xz |
Support: Functions for writing endian specific data to streams.
This adds a new header, EndianStream.h, which supplies an adaptor for
writing endian specific data to a raw_ostream.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205032 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'include/llvm/Support/EndianStream.h')
-rw-r--r-- | include/llvm/Support/EndianStream.h | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/include/llvm/Support/EndianStream.h b/include/llvm/Support/EndianStream.h new file mode 100644 index 0000000000..89c66d3b84 --- /dev/null +++ b/include/llvm/Support/EndianStream.h @@ -0,0 +1,39 @@ +//===- 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_ENDIAN_STREAM_H_ +#define _LLVM_SUPPORT_ENDIAN_STREAM_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)); + } +}; +} // end namespace endian + +} // end namespace support +} // end namespace llvm + +#endif // _LLVM_SUPPORT_ENDIAN_STREAM_H_ |