Crash when using boost::iostreams

Question

I'm trying to use boost::iostreams(1.53.0) to uncompress a HTTP request body and later process it. But I get a crash when I run the following code.

try {
    using namespace boost::iostreams;
    ifstream file(argv[1], std::ios_base::in | std::ios_base::binary);
    boost::iostreams::filtering_istream in;
    in.push(gzip_decompressor());
    in.push(file);
    std::stringstream strstream;
    boost::iostreams::copy(in, strstream);
} catch (std::exception& e) {
    cout << e.what() << endl;
}

The crash occurs in gzip_decompressor(), more specifically in gzip_header() { reset(); } from boost's gzip.hpp (by looking at the call stack).

I have compiled myself the boost::iostreams library and also tried to use boost from macports, but the same crash occurs. I also tried using the gzstream library, but that crashes also in a constructor, more specifically in the constructor of igzstream.

I tend to believe that this is a zlib-related problem. I didn't specify, I'm using a MacBook Pro with Mountain Lion and xCode 4.6 to build and run the code.

Did any of you encounter such a problem before?

Can you attach a debugger and post a stack trace of the crash? — Sam Miller, Apr 02 '13 at 00:01
Have you confirmed that the argv[1] actually points to a file? — Zac, Apr 02 '13 at 00:27
@Zac The gzip_decompressor() crashing has nothing to do with the argv supplied. Nevertheless, it points to a correct file path. — afp, Apr 02 '13 at 19:58

score 1 · Answer 1 · answered Apr 02 '13 at 20:03

I found the problem: Apple's LLVM compiler. I was sure I was using GCC, but it seems I wasn't.

I discovered this by stumbling upon another weird crash, which happened just by instantiating a std::string object. This made me check the project settings, where I found I was using the LLVM compiler, which probably wasn't happy with me linking gcc-built libraries.

Thanks for your replies.

Crash when using boost::iostreams

1 Answers1