remove copy

wolfv · wolfv · commit dd4d875095ae · 2018-01-26T17:44:13.000+01:00
diff --git a/include/xtensor-python/pycontainer.hpp b/include/xtensor-python/pycontainer.hpp
@@ -329,8 +329,7 @@ namespace xt
             throw std::runtime_error("Cannot reshape with unknown layout_type.");
         }
 
-        std::vector<npy_intp> int_shape(shape.begin(), shape.end());
-        PyArray_Dims dims({int_shape.data(), static_cast<int>(shape.size())});
+        PyArray_Dims dims({reinterpret_cast<npy_intp*>(shape.data()), static_cast<int>(shape.size())});
         PyArray_Newshape((PyArrayObject*) this->ptr(), &dims, npy_layout);
     }
 

Original file line number	Diff line number	Diff line change
`@@ -329,8 +329,7 @@ namespace xt`
`329`	`329`	`throw std::runtime_error("Cannot reshape with unknown layout_type.");`
`330`	`330`	`}`
`331`	`331`
`332`		`- std::vector<npy_intp> int_shape(shape.begin(), shape.end());`
`333`		`- PyArray_Dims dims({int_shape.data(), static_cast<int>(shape.size())});`
	`332`	`+ PyArray_Dims dims({reinterpret_cast<npy_intp*>(shape.data()), static_cast<int>(shape.size())});`
`334`	`333`	`PyArray_Newshape((PyArrayObject*) this->ptr(), &dims, npy_layout);`
`335`	`334`	`}`
`336`	`335`