diff options
| -rw-r--r-- | build2/variable.cxx | 2 | ||||
| -rw-r--r-- | build2/variable.hxx | 5 |
2 files changed, 5 insertions, 2 deletions
diff --git a/build2/variable.cxx b/build2/variable.cxx index 8d9aa14..ce88712 100644 --- a/build2/variable.cxx +++ b/build2/variable.cxx @@ -1135,7 +1135,7 @@ namespace build2 variable& r (p.first->second); - if (!p.second) + if (!p.second) // Note: overridden variable will always exist. { if (t != nullptr || v != nullptr || o != nullptr) update (r, t, v, o); // Not changing the key. diff --git a/build2/variable.hxx b/build2/variable.hxx index 60a1699..c5e1a13 100644 --- a/build2/variable.hxx +++ b/build2/variable.hxx @@ -117,6 +117,9 @@ namespace build2 // reset() before any other variables. Project wide overrides are entered in // main(). Overriding happens in scope::find_override(). // + // NULL type and normal visibility are the defaults and can be overridden by + // "tighter" values. + // struct variable { string name; @@ -804,7 +807,7 @@ namespace build2 class variable_pool { public: - // Find existing or insert new. + // Find existing (assert exists). // const variable& operator[] (const string& name) const; |