undefined reference to 'std::basic_string

最新推荐文章于 2024-05-23 16:24:13 发布

翻译最新推荐文章于 2024-05-23 16:24:13 发布 · 7.1k 阅读

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#reference #basic #string #gcc #ios #c

在使用GCC编译C++文件时，若出现未定义引用到std::basic_string相关函数的问题，可通过添加-lstdc++参数进行解决。此外，g++编译器会自动连接stdc++库。

[c/c++][gcc] undefined reference to 'std::basic_string ...'

我在使用 gcc 对c++ 文件进行编译的时候 (命令是 "gcc HelloWorld -o HelloWorld" )报出了错误：

undefined reference to `std::basic_string<char, std::char_traits<char>, std::allocator<char> >::s
ize() const'
undefined reference to `std::basic_string<char, std::char_traits<char>, std::allocator<char> >::
operator[](unsigned int) const'
undefined reference to `std::basic_string<char, std::char_traits<char>, std::allocator<char> >::
operator[](unsigned int) const'
undefined reference to `std::basic_string<char, std::char_traits<char>, std::allocator<char> >::
operator[](unsigned int) const'
undefined reference to `std::cout'
undefined reference to `std::basic_ostream<char, std::char_traits<char> >& std::operator<< <std
::char_traits<char> >(std::basic_ostream<char, std::char_traits<char> >&, char const*)'
undefined reference to `std::ios_base::Init::Init()'
undefined reference to `std::ios_base::Init::~Init()'
collect2: ld returned 1 exit status

解决方法是用如下命令进行编译(使用 -l 来连接 stdc++):

gcc HelloWorld.cpp -lstdc++ -o HelloWorld

另外，你也可以使用 g++, 效果是一样的, stdc++会被自动连接:

g++ HelloWorld.cpp -o HelloWorld