add typedef to get element type of array_t

[nbecker]

I believe this makes it a lot easier to write generic code using array_t

diff --git a/include/pybind11/numpy.h b/include/pybind11/numpy.h
index c224bd4..5795347 100644
--- a/include/pybind11/numpy.h
+++ b/include/pybind11/numpy.h
@@ -563,6 +563,7 @@ protected:
 
 template <typename T, int ExtraFlags = array::forcecast> class array_t : public array {
 public:
+    typedef T el_t;
     array_t() : array(0, static_cast<const T *>(nullptr)) {}
     array_t(handle h, borrowed_t) : array(h, borrowed) { }
     array_t(handle h, stolen_t) : array(h, stolen) { }

[jagerman]

Seems reasonable. Minor nitpick: maybe value_type rather than el_t?

[nbecker]

sure

…

On Tue, Jan 31, 2017 at 3:56 PM Jason Rhinelander ***@***.***> wrote: Seems reasonable. Minor nitpick: maybe value_type rather than el_t? — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub <#632 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/AAHK0D8VLpUUy6v1QCldDAdmlo4zzFkVks5rX5_hgaJpZM4LzJyV> .

[aldanor]

Looks reasonable.