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Re: [cdt-dev] resolution error

Hi

 

I think the problem origins from the fact that getID() is a constexpr function. If I replace "A::getID()" in the template argument of B with the corresponding part of its return statement "static_cast<uint16_t>(TEST_ID)" the problem vanishes. Therefore, it would be related to this bug: https://bugs.eclipse.org/bugs/show_bug.cgi?id=332829

I'm not sure whether your case should already be working or not.

 

Regards

Thomas

 

 

 

From: cdt-dev-bounces@xxxxxxxxxxx [mailto:cdt-dev-bounces@xxxxxxxxxxx] On Behalf Of scalpel4k
Sent: Freitag, 5. Juli 2013 12:00
To: CDT General developers list.
Subject: [cdt-dev] resolution error

 

Hi guys,

 

I am facing a little problem using templates. The following code example produces a symbol resolution error message while the compiler itself does not choke at all.

I tend to say that I don't need the explicit static_cast in class C, so is this a bug which I should report?

 

#include <stdint.h>

 

#define TEST_ID 0

 

struct A {

 

static constexpr uint16_t getID() {

return static_cast<uint16_t>(TEST_ID);

}

 

};

 

template<uint16_t ID>

struct B {

 

static constexpr uint16_t getID() {

return ID;

}

 

};

 

struct C {

 

static uint16_t getID_0 () {

return B<static_cast<uint16_t>(A::getID())>::getID(); // why do I

}

 

static uint16_t getID_1 () {

return B<A::getID()>::getID(); // resolution error

}

 

};


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