diff options
Diffstat (limited to 'libbuild2/variable.hxx')
| -rw-r--r-- | libbuild2/variable.hxx | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/libbuild2/variable.hxx b/libbuild2/variable.hxx index eebb767..e55a121 100644 --- a/libbuild2/variable.hxx +++ b/libbuild2/variable.hxx @@ -124,12 +124,13 @@ namespace build2 const location& sloc, const location& bloc); - // Custom iteration function. It should invoked the specified function for + // Custom iteration function. It should invoke the specified function for // each element in order. If NULL, then the generic implementation is - // used. The passed value is never NULL. + // used. The passed value is never NULL. If the specified function returns + // false, then stop the iteration and return false. Otherwise return true. // - void (*const iterate) (const value&, - const function<void (value&&, bool first)>&); + bool (*const iterate) (const value&, + const function<bool (value&&, bool first)>&); }; // The order of the enumerators is arranged so that their integral values @@ -1379,6 +1380,9 @@ namespace build2 extern template struct LIBBUILD2_DECEXPORT value_traits<vector<pair<string, optional<bool>>>>; + extern template struct LIBBUILD2_DECEXPORT + value_traits<vector<pair<optional<string>, bool>>>; + extern template struct LIBBUILD2_DECEXPORT value_traits<set<string>>; extern template struct LIBBUILD2_DECEXPORT value_traits<set<json_value>>; |