Hi,

when is it posible to define a "string" type safely? I think, the only situation is for const char * input parameter. Because otherwise we are gonna have memory leaks.

For example, for a function like:

char *foo();

if we attach it with:

attach_function :foo, :foo, [], :string

We are gonna have a nice memory leak because nobody is gonna release that string. When we call "foo" method in ruby, we get a String object, we cannot (or I don't know how) get the actual char pointer to release it (either from ruby or with another attached function where we pass the pointer and that function calls free, delete o whatever is necessary).

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