Add DepIterator::IsSatisfied(PkgIterator)

This allows checking if a dependency is satisfied by all versions
of a package.

2 files changed, 8 insertions, 0 deletions

diff --git a/apt-pkg/cacheiterators.h b/apt-pkg/cacheiterators.h
index 31ce1b295..38b4b8635 100644
--- a/apt-pkg/cacheiterators.h
+++ b/apt-pkg/cacheiterators.h
@@ -330,6 +330,7 @@ class APT_PUBLIC pkgCache::DepIterator : public Iterator<Dependency, DepIterator
 	   but change architecture nonetheless as a Conflicts: foo does applies for all archs */
 	bool IsImplicit() const APT_PURE;
 
+	bool IsSatisfied(PkgIterator const &Pkg) const APT_PURE;
 	bool IsSatisfied(VerIterator const &Ver) const APT_PURE;
 	bool IsSatisfied(PrvIterator const &Prv) const APT_PURE;
 	void GlobOr(DepIterator &Start,DepIterator &End);
diff --git a/apt-pkg/pkgcache.cc b/apt-pkg/pkgcache.cc
index bccd7798f..1f1aadf59 100644
--- a/apt-pkg/pkgcache.cc
+++ b/apt-pkg/pkgcache.cc
@@ -776,6 +776,13 @@ bool pkgCache::DepIterator::IsIgnorable(PrvIterator const &Prv) const
 }
 									/*}}}*/
 // DepIterator::IsSatisfied - check if a version satisfied the dependency /*{{{*/
+bool pkgCache::DepIterator::IsSatisfied(PkgIterator const &Pkg) const
+{
+   for (auto ver = Pkg.VersionList(); not ver.end(); ++ver)
+      if (not IsSatisfied(ver))
+	 return false;
+   return not Pkg.VersionList().end();
+}
 bool pkgCache::DepIterator::IsSatisfied(VerIterator const &Ver) const
 {
    return Owner->VS->CheckDep(Ver.VerStr(),S2->CompareOp,TargetVer());