I solved this. It did require the Python caller obtaining the string size
from the C++ DLL. The key part is to use ctypes.string_at() to then define
the string at the Python end.
lib.fun.argtypes = [c_void_p, c_void_p]
lib.fun.restype = c_void_p
size = c_int()
return_ptr = lib.fun(self.obj, b
I think if you have to work with C types then you will need to provide both
a char* and an integer length. That Python error makes it sound like the
Python code is probably trying to parse beyond the end of the serialized
message.
On Wed, Oct 14, 2020 at 3:55 PM Randy Nuss wrote:
> I am building
I am building a C++ library with protobuf messages for consumption by a
Python program. The issue is SerializeToString() takes std::string, but
only c_types (like char*) can be exported by the dll, which results in
numerical zeros being recognized as string terminators and truncating the
Parse
