c++ - Capture a void* argument from a mock function call -

mocking library used: gmock

im trying capture void* argument passed part of function call on mock object. im able capture int values passed through savearg<n> when try use capture void* argument throws compilation error

error: gmock/include/gmock/gmock-more-actions.h:155: error: ‘const void*’ not pointer-to-object type

code (relevant parts):

struct blah {     int a;     int b; };  class someclass {     void some_function(const void* arg0, u64 arg1); };  class mocksomeclass : public someclass { . .  // holds mock definition . };  class myclass {    someclass* _dep;     myclass(someclass* dep)    {        _dep = dep;    };     void test_function()    {        blah b = new blah();        _dep->some_function(b, sizeof(blah));    } };  test(sometestcase, one) {     mocksomeclass mock_object = new mocksomeclass();     void* actual_arg;      expect_call(*mock_object, some_function(_,_)).willonce(savearg<0>(actual_arg)); // throws compilation err      myclass test_obj = new myclass(mock_object);     test_obj->test_function(); } 

the problem savearg expects address location save contents. since im capturing pointer save address arg-pointer points in address-location give savearg. had savearg<0>(&actual_arg). bottom line: got confused since im capturing pointer, though actual_arg pointer savearg expects address in memory can save contents.