diff options
| author | Michael Shepanski <michael@codesynthesis.com> | 2014-10-30 15:35:44 +1100 |
|---|---|---|
| committer | Michael Shepanski <michael@codesynthesis.com> | 2014-10-31 08:37:00 +1100 |
| commit | a3cf15ba206f5571342c829c06f6de1653928364 (patch) | |
| tree | af8abad639965217fcafee83d8aeb712f5a9bab3 | |
| parent | 049ec20555c741861f69647a07d9ca707b2c5646 (diff) | |
Allow lambdas & std::functions as query factories with C++-98 builds of libodb
| -rw-r--r-- | bug/list | 2 | ||||
| -rw-r--r-- | reference/list | 15 |
2 files changed, 15 insertions, 2 deletions
@@ -1,7 +1,5 @@ ! Copyright update [doc] -! C++11 support is not trully header only [c++11] - ! Statement name truncation in PostgreSQL [pgsql] There seems to be a limit on the prepared statement name in PG. The result diff --git a/reference/list b/reference/list index 570537e..8d95506 100644 --- a/reference/list +++ b/reference/list @@ -11,3 +11,18 @@ * support via bool flag and make user instantiate - burdensome * support via bool flag and instantiate stderr_full_tracer - code bloat but seems the best option + ++ C++11 support is not trully header only [c++11] + + Added a new class details::function_wrapper<F>, which can be used similarly + to std::function<F>. In particular, C++11 code can construct a + function_wrapper from a lambda, or a std::function, or another + function_wrapper. But it differs from std::function in this respect: + C++98 code can declare and define function_wrapper objects. + + Now all builds (98 or 11) of libodb keep their callbacks in + function_wrappers. C++11 user code can register std::functions or lambdas as + callbacks, and the glue that turns those into function_wrappers for libodb is + header-only. + + This technique is currently used for data migrations and query factories. |