Struct containing std::string being passed to lua

Answer 1

You need to add %include <std_string.i> to your SWIG module. Otherwise, it does not know how to map a Lua string to an C++ std::string.

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A common problem that people encounter is that of classes/structures containing a std::string. This can be overcome by defining a typemap. For example:

%module example
%include "std_string.i"

%apply const std::string& {std::string* foo};

struct my_struct
{
  std::string foo;
};