boehm::ffi::GC_debug_strndup
pub extern fn GC_debug_strndup(arg1: *c_schar, arg2: size_t, s: *c_schar, i: c_int) -> *mut c_schar
pub extern fn GC_debug_strndup(arg1: *c_schar, arg2: size_t, s: *c_schar, i: c_int) -> *mut c_schar
                Prefix searches with a type followed by a colon (e.g.
                fn:) to restrict the search to a given type.
            
                Accepted types are: fn, mod,
                struct (or str), enum,
                trait, typedef (or
                tdef).