mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-10-19 19:12:56 +02:00
a2edc5eab3
Provide some free functions to reduce verbosity of endian-writing a single value, and replace the endianness template parameter with a field. Part of PR37466. Differential Revision: https://reviews.llvm.org/D47032 llvm-svn: 332757
70 lines
1.9 KiB
C++
70 lines
1.9 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/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
|