Piotr Wach software developer

Bug in C++ standard library: std::bind

15 Jan 2014

While working on cross platform C++ library, I have found that this code crashes if compiled with Xcode 5:

#include <iostream>
#include <functional>

int main(int argc, const char * argv[])
{
    std::function<void(int)> function = [](int){};
    auto binding = std::bind(function, 10);
    // crashes here with EXC_BAD_ACCESS
    std::function<void()> jobFunctor = binding;
    return 0;
}

When converting the result of the bind to jobFunctor there is an infinite stack recursion in a std::function constructor.

clang version:

$ clang++ --version
Apple LLVM version 5.0 (clang-500.2.79) (based on LLVM 3.3svn)
Target: x86_64-apple-darwin12.5.0
Thread model: posix

Turns out there is official bug report about it: http://llvm.org/bugs/show_bug.cgi?id=18282

Above example works fine in Xcode 5.1.

Related Posts