➜ fortranRW g++ -shared -fPIC -o libmy_cpp_code.so ReadWrite.cpp In file included from ReadWrite.cpp:4: ReadWrite.h:4:34: error: ISO C++ forbids declaration of ‘string’ with no type [-fpermissive] 4 | void my_cpp_function(const & string fullName); | ^~~~~~ ReadWrite.h:4:41: error: expected ‘,’ or ‘...’ before ‘fullName’ 4 | void my_cpp_function(const & string fullName); | ^~~~~~~~

这个错误是因为你在函数声明中的参数类型不正确。正确的写法应该是:

void my_cpp_function(const std::string& fullName);

你需要将代码中的`& string`替换成`const std::string&`，这样才能正确地声明一个string类型的参数。