re PR c++/57397 (Off-by-one error in diagnostic when calling variadic function templa...

re PR c++/57397 (Off-by-one error in diagnostic when calling variadic function template with too few arguments)

/cp
2014-07-30  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/57397
	* pt.c (unify_arity): Add boolean parameter.
	(unify_too_few_arguments): Likewise.
	(type_unification_real): Diagnose correctly insufficient
	arguments in the presence of trailing variadic parameters;
	deducing multiple trailing packs as empty is fine.

/testsuite
2014-07-30  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/57397
	* g++.dg/cpp0x/vt-57397-1.C: New.
	* g++.dg/cpp0x/vt-57397-2.C: Likewise.

From-SVN: r213310