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-rw-r--r--build/target16
1 files changed, 10 insertions, 6 deletions
diff --git a/build/target b/build/target
index f2b093e..d451851 100644
--- a/build/target
+++ b/build/target
@@ -609,14 +609,18 @@ namespace build
g_.count = 1;
}
- // Iterate over this group's members. Similar to leave_group(),
- // you should increment the iterator after calling this function.
+ // Iterate over this group's members. Return false if the member
+ // information is not available. Similar to leave_group(), you
+ // should increment the iterator after calling this function
+ // (provided it returned true).
//
- void
+ bool
enter_group ()
{
- switch_members ();
- --j_; // Compensate for the increment that will follow.
+ bool r (switch_members ());
+ if (r)
+ --j_; // Compensate for the increment that will follow.
+ return r;
}
value_type operator* () const
@@ -646,7 +650,7 @@ namespace build
operator!= (const iterator& x, const iterator& y) {return !(x == y);}
private:
- void
+ bool
switch_members ();
private: