c++ - 如何将 C++ 标准库链接到 Monotouch 应用程序

Question

我正在将一个企业库绑定(bind)到我的 Monotouch 应用程序。这是一个艰巨的过程，因为 Objective Sharpie 未能创建 API，我不得不发挥创造力。
但是现在，在编译终于成功之后，我面临着一个链接问题

Undefined symbols for architecture armv7:
  "std::__1::__basic_string_common<true>::__throw_length_error() const", referenced from:
      __ZNSt3__112basic_stringIcNS_11char_traitsIcEENS_9allocatorIcEEE6__initIPcEENS_9enable_ifIXsr21__is_forward_iteratorIT_EE5valueEvE4typeES9_S9_ in libWeANDSFLibrary.a(WfStringBody.o)
  "std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >::resize(unsigned long, char)", referenced from:
      std::__1::basic_stringbuf<char, std::__1::char_traits<char>, std::__1::allocator<char> >::overflow(int)in libWeANDSFLibrary.a(WfStringBody.o)
      std::__1::basic_stringbuf<char, std::__1::char_traits<char>, std::__1::allocator<char> >::str(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&)in libWeANDSFLibrary.a(WfStringBody.o)
  "std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >::push_back(char)", referenced from:
      std::__1::basic_stringbuf<char, std::__1::char_traits<char>, std::__1::allocator<char> >::overflow(int)in libWeANDSFLibrary.a(WfStringBody.o)
  "std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >::~basic_string()", referenced from:
      wflang::CWfStringBody::Float64ToArray(double, unsigned short*)in libWeANDSFLibrary.a(WfStringBody.o)
      std::__1::basic_ostringstream<char, std::__1::char_traits<char>, std::__1::allocator<char> >::~basic_ostringstream()in libWeANDSFLibrary.a(WfStringBody.o)
      std::__1::basic_ostringstream<char, std::__1::char_traits<char>, std::__1::allocator<char> >::~basic_ostringstream()in libWeANDSFLibrary.a(WfStringBody.o)
      virtual thunk to std::__1::basic_ostringstream<char, std::__1::char_traits<char>, std::__1::allocator<char> >::~basic_ostringstream()in libWeANDSFLibrary.a(WfStringBody.o)
      virtual thunk to std::__1::basic_ostringstream<char, std::__1::char_traits<char>, std::__1::allocator<char> >::~basic_ostringstream()in libWeANDSFLibrary.a(WfStringBody.o)
      std::__1::basic_stringbuf<char, std::__1::char_traits<char>, std::__1::allocator<char> >::~basic_stringbuf()in libWeANDSFLibrary.a(WfStringBody.o)
      std::__1::basic_stringbuf<char, std::__1::char_traits<char>, std::__1::allocator<char> >::~basic_stringbuf()in libWeANDSFLibrary.a(WfStringBody.o)
      ...

等等。我尝试遵循 Wrapping a C++ library in Objective-C is not hiding the C++ symbols 中的建议但它没有用。有什么想法吗？

Answer 1

您好，您似乎正在使用非 C++ 编译器进行编译，您可能想尝试在 iOS 项目选项 或 LinkWith attribute 中设置它你应该设置 IsCxx = true在您的 iOS 绑定(bind)项目

iOS 项目构建选项 的可用选项是

• --编译器:gcc
• --编译器:g++
• --编译器:clang
• --编译器:clang++

你应该试试 --compiler:g++或 --compiler:clang++

希望对你有帮助

亚历克斯