1 files changed, 81 insertions, 0 deletions
diff --git a/src/armadillo/include/armadillo_bits/fn_prod.hpp b/src/armadillo/include/armadillo_bits/fn_prod.hpp
new file mode 100644
index 0000000..c15110f
--- /dev/null
+++ b/src/armadillo/include/armadillo_bits/fn_prod.hpp
@@ -0,0 +1,81 @@
+// SPDX-License-Identifier: Apache-2.0
+// 
+// Copyright 2008-2016 Conrad Sanderson (http://conradsanderson.id.au)
+// Copyright 2008-2016 National ICT Australia (NICTA)
+// 
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+// http://www.apache.org/licenses/LICENSE-2.0
+// 
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+// ------------------------------------------------------------------------
+
+
+//! \addtogroup fn_prod
+//! @{
+
+
+//! \brief
+//! Delayed product of elements of a matrix along a specified dimension (either rows or columns).
+//! The result is stored in a dense matrix that has either one column or one row.
+//! For dim = 0, find the sum of each column (ie. traverse across rows)
+//! For dim = 1, find the sum of each row (ie. traverse across columns)
+//! The default is dim = 0.
+//! NOTE: this function works differently than in Matlab/Octave.
+
+template<typename T1>
+arma_warn_unused
+inline
+typename enable_if2< is_arma_type<T1>::value && resolves_to_vector<T1>::yes, typename T1::elem_type >::result
+prod(const T1& X)
+  {
+  arma_extra_debug_sigprint();
+  
+  return op_prod::prod(X);
+  }
+
+
+
+template<typename T1>
+arma_warn_unused
+arma_inline
+typename enable_if2< is_arma_type<T1>::value && resolves_to_vector<T1>::no, const Op<T1, op_prod> >::result
+prod(const T1& X)
+  {
+  arma_extra_debug_sigprint();
+  
+  return Op<T1, op_prod>(X, 0, 0);
+  }
+
+
+
+template<typename T1>
+arma_warn_unused
+arma_inline
+typename enable_if2< is_arma_type<T1>::value, const Op<T1, op_prod> >::result
+prod(const T1& X, const uword dim)
+  {
+  arma_extra_debug_sigprint();
+  
+  return Op<T1, op_prod>(X, dim, 0);
+  }
+
+
+
+template<typename T>
+arma_warn_unused
+arma_inline
+typename arma_scalar_only<T>::result
+prod(const T& x)
+  {
+  return x;
+  }
+
+
+
+//! @}