The following code, which compiles cleanly in gcc 4.2.3, produces an error with
4.3.0:
----
template< typename T >
struct X {
void f(const char *fmt, ...)
__attribute__((format (printf, 2, 3) ));
};
template class X< void >;
----
fmt_et.cc: In instantiation of 'X<void>':
fmt_et.cc:7: instantiated from here
fmt_et.cc:4: error: 'printf' was not declared in this scope
fmt_et.cc:4: error: unrecognized format specifier
The error occurs both with explicit instantiation of the class (as above) and
with implicit instantiation via an invocation of the method X<void>::f. It
does not occur either for a non-template class or if the template is never
instantiated.
--
Summary: __attribute__((format)) fails for methods of template
classes
Product: gcc
Version: 4.3.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: zak at transversal dot com
GCC build triplet: x86_64_pc_linux_gnu
GCC host triplet: x86_64-pc-linux-gnu
GCC target triplet: x86_64_pc_linux_gnu
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35890
