[Bug c++/69521] -Wdeprecated-declarations errors in unused inline methods

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69521

Richard Biener  changed:

   What|Removed |Added

   Keywords||diagnostic
 Status|UNCONFIRMED |NEW
   Last reconfirmed||2016-01-28
 Ever confirmed|0   |1
   Severity|normal  |enhancement

--- Comment #2 from Richard Biener  ---
Kind-of confirmed.  I understand this makes sense if both deprecated functions
are "related" but you might be interested in a warning about using a deprecated
function from an unrelated library even in your own deprecated function.

Also kind-of confirmed for

__attribute__((deprecated)) inline void qLess() {}

inline void qLowerBound()
{
  qLess();
} 

int main()
{
  return 0;
} 

thus for use in an unused inline function.  As above you might be interested
in this kind of warning nevertheless.

A good solution might be to have two levels of this warning.

[Bug c++/69521] -Wdeprecated-declarations errors in unused inline methods

[loic.yhuel at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69521

Loïc Yhuel  changed:

   What|Removed |Added

 CC||loic.yhuel at gmail dot com

--- Comment #1 from Loïc Yhuel  ---
> If it's easier to do, perhaps using a deprecated function in a deprecated
> function shouldn't produce a warning (deprecated code would be able to use
> other deprecated code).
Clang seems to do this.
Testing with clang 3.7, the 3 cases (first code, second code in C++ mode,
second code in C mode) don't produce any warning, unless I remove the
deprecated attribute from qLowerBound.