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-rw-r--r--build2/variable.ixx8
1 files changed, 8 insertions, 0 deletions
diff --git a/build2/variable.ixx b/build2/variable.ixx
index e01e3d6..da86c39 100644
--- a/build2/variable.ixx
+++ b/build2/variable.ixx
@@ -158,6 +158,14 @@ namespace build2
}
template <typename T>
+ inline T
+ cast_false (const value& v) {return v && cast<T> (v);}
+
+ template <typename T>
+ inline T
+ cast_false (const lookup& l) {return l && cast<T> (l);}
+
+ template <typename T>
inline void
typify (value& v, const variable& var)
{