今天在使用Mac編譯C++文件時，提示以下錯誤。
1 Undefined symbols for architecture x86_64: 2 "std::__1::__vector_base_common<true>::__throw_length_error() const", referenced from: 3 void std::__1::vector<E, std::__1::allocator<E> >::__push_back_slow_path<E const>(E const&) in main-8b5a99.o 4 "std::terminate()", referenced from: 5 ___clang_call_terminate in main-8b5a99.o 6 "operator delete(void*)", referenced from: 7 std::__1::__vector_base<E, std::__1::allocator<E> >::~__vector_base() in main-8b5a99.o 8 std::__1::__split_buffer<E, std::__1::allocator<E>&>::~__split_buffer() in main-8b5a99.o 9 "operator new(unsigned long)", referenced from: 10 std::__1::__split_buffer<E, std::__1::allocator<E>&>::__split_buffer(unsigned long, unsigned long, std::__1::allocator<E>&) in main-8b5a99.o 11 "___cxa_begin_catch", referenced from: 12 ___clang_call_terminate in main-8b5a99.o 13 "___cxa_call_unexpected", referenced from: 14 _main in main-8b5a99.o 15 "___gxx_personality_v0", referenced from: 16 _main in main-8b5a99.o 17 ___cxx_global_array_dtor in main-8b5a99.o 18 void std::__1::vector<E, std::__1::allocator<E> >::__push_back_slow_path<E const>(E const&) in main-8b5a99.o 19 Dwarf Exception Unwind Info (__eh_frame) in main-8b5a99.o 20 ld: symbol(s) not found for architecture x86_64 21 clang: error: linker command failed with exit code 1 (use -v to see invocation)
通過在stackoverflow翻閱找到相應的解決辦法。 發生這種狀況的原因是gcc默認文件時c文件，在編譯時不會鏈接c++標准庫。我們可以通過以下方式進行指定引入c++標准庫
gcc main.c -o macin -lstdc++
或者使用
g++ main.c -o main
參考鏈接:stackoverflow