llvm/lib/Bitcode/Writer/BitWriter.cpp
Gordon Henriksen a068fd32e2 Better test for availability of __gnu_cxx::stdio_filebuf.
If this doesn't work, I'll write a configure test.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52213 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-11 10:46:24 +00:00

59 lines
1.6 KiB
C++

//===-- BitWriter.cpp -----------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "llvm-c/BitWriter.h"
#include "llvm/Bitcode/ReaderWriter.h"
#include <fstream>
using namespace llvm;
/*===-- Operations on modules ---------------------------------------------===*/
int LLVMWriteBitcodeToFile(LLVMModuleRef M, const char *Path) {
std::ofstream OS(Path, std::ios_base::out|std::ios::trunc|std::ios::binary);
if (!OS.fail())
WriteBitcodeToFile(unwrap(M), OS);
if (OS.fail())
return -1;
return 0;
}
#if defined(__GNUC__) && (__GNUC__ > 3 || __GNUC__ == 3 && __GNUC_MINOR >= 4)
#include <ext/stdio_filebuf.h>
// FIXME: Control this with configure? Provide some portable abstraction in
// libSystem? As is, the user will just get a linker error if they use this on
// non-GCC. Some C++ stdlibs even have ofstream::ofstream(int fd).
int LLVMWriteBitcodeToFileHandle(LLVMModuleRef M, int FileHandle) {
__gnu_cxx::stdio_filebuf<char> Buffer(FileHandle, std::ios_base::out |
std::ios::trunc |
std::ios::binary);
std::ostream OS(&Buffer);
if (!OS.fail())
WriteBitcodeToFile(unwrap(M), OS);
if (OS.fail())
return -1;
return 0;
}
#else
int LLVMWriteBitcodeToFileHandle(LLVMModuleRef M, int FileHandle) {
return -1; // Not supported.
}
#endif