c++ structs and consts

JHi

I have a problem with structs and const members:

struct foo
{
const int16 a;
const int16 n;
};

foo foobar = {1, 2};

With C this works without warnings, but with C++ I get the following warning (C2000 compiler TI v6.1.1):

warning #370-D: class "foo" defines no constructor to initialize the following:
const member "foo::a"
const member "foo::n"

Is there a way to get rid of this warning because this should be valid code, or?

0 Bill Finger over 12 years ago

Genius 3735 points

In C++ you need to have a constructor for such a struct.

Replace 'foo foobar = {1, 2};' with foo foobar(1,2);

Into the struct add:

foo(_a,_n) : a(_a), n(_n) {}

Of course, the simplest thing to do would be to remove const from the members, and just make the struct const.

Thus,

const foo foobar = {1,2};

This would be correct in both languages.

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