c++ - Converting const struct reference to non-const pointer -

c++ - Converting const struct reference to non-const pointer -

i trying work out how convert const struct reference non-const struct pointer.

i have struct called foo:

struct foo { foo& somefunc() { //do homecoming *this; } };

i have method:

struct bar { foo* foopointer; void anotherfunc(const foo& foo) { // set foopointer foo's pointer } };

i phone call this:

foo foo; bar bar; bar.anotherfunc(foo.somefunc());

but how write anotherfunc()?

void anotherfunc(const foo& foo) { foopointer = &foo; // <-- doesn't work foo still const }

you take straight pointer or non-const reference foo.

the way you're passing foo, won't able without const_cast, feels wrong except in few precise case.

as you're storing pointer non-const foo, should take parameter non-const also. think interface: struct has function takes foo const qualification, implying "i peak @ it", function casts , stores in way allows modification. it's bit lying users of code (and first user of code).

c++ pointers struct reference