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- // 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_min
- //! @{
- 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
- min(const T1& X)
- {
- arma_extra_debug_sigprint();
-
- return op_min::min(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_min> >::result
- min(const T1& X)
- {
- arma_extra_debug_sigprint();
-
- return Op<T1, op_min>(X, 0, 0);
- }
- template<typename T1>
- arma_warn_unused
- arma_inline
- typename enable_if2< is_arma_type<T1>::value, const Op<T1, op_min> >::result
- min(const T1& X, const uword dim)
- {
- arma_extra_debug_sigprint();
-
- return Op<T1, op_min>(X, dim, 0);
- }
- template<typename T>
- arma_warn_unused
- arma_inline
- typename arma_scalar_only<T>::result
- min(const T& x)
- {
- return x;
- }
- //! element-wise minimum
- template<typename T1, typename T2>
- arma_warn_unused
- arma_inline
- typename
- enable_if2
- <
- ( is_arma_type<T1>::value && is_arma_type<T2>::value && is_same_type<typename T1::elem_type, typename T2::elem_type>::value ),
- const Glue<T1, T2, glue_min>
- >::result
- min
- (
- const T1& X,
- const T2& Y
- )
- {
- arma_extra_debug_sigprint();
-
- return Glue<T1, T2, glue_min>(X, Y);
- }
- template<typename T1>
- arma_warn_unused
- arma_inline
- const OpCube<T1, op_min>
- min
- (
- const BaseCube<typename T1::elem_type, T1>& X,
- const uword dim = 0
- )
- {
- arma_extra_debug_sigprint();
-
- return OpCube<T1, op_min>(X.get_ref(), dim, 0);
- }
- template<typename T1, typename T2>
- arma_warn_unused
- arma_inline
- const GlueCube<T1, T2, glue_min>
- min
- (
- const BaseCube<typename T1::elem_type, T1>& X,
- const BaseCube<typename T1::elem_type, T2>& Y
- )
- {
- arma_extra_debug_sigprint();
-
- return GlueCube<T1, T2, glue_min>(X.get_ref(), Y.get_ref());
- }
- template<typename T1>
- arma_warn_unused
- inline
- typename
- enable_if2
- <
- is_arma_sparse_type<T1>::value && resolves_to_sparse_vector<T1>::yes,
- typename T1::elem_type
- >::result
- min(const T1& x)
- {
- arma_extra_debug_sigprint();
-
- return spop_min::vector_min(x);
- }
- template<typename T1>
- arma_warn_unused
- inline
- typename
- enable_if2
- <
- is_arma_sparse_type<T1>::value && resolves_to_sparse_vector<T1>::no,
- const SpOp<T1, spop_min>
- >::result
- min(const T1& X)
- {
- arma_extra_debug_sigprint();
-
- return SpOp<T1, spop_min>(X, 0, 0);
- }
- template<typename T1>
- arma_warn_unused
- inline
- typename
- enable_if2
- <
- is_arma_sparse_type<T1>::value,
- const SpOp<T1, spop_min>
- >::result
- min(const T1& X, const uword dim)
- {
- arma_extra_debug_sigprint();
-
- return SpOp<T1, spop_min>(X, dim, 0);
- }
- // elementwise sparse min
- template<typename T1, typename T2>
- arma_warn_unused
- inline
- typename
- enable_if2
- <
- (is_arma_sparse_type<T1>::value && is_arma_sparse_type<T2>::value && is_same_type<typename T1::elem_type, typename T2::elem_type>::value),
- const SpGlue<T1, T2, spglue_min>
- >::result
- min(const T1& x, const T2& y)
- {
- arma_extra_debug_sigprint();
- return SpGlue<T1, T2, spglue_min>(x, y);
- }
- //! elementwise min of dense and sparse objects with the same element type
- template<typename T1, typename T2>
- inline
- typename
- enable_if2
- <
- (is_arma_type<T1>::value && is_arma_sparse_type<T2>::value && is_same_type<typename T1::elem_type, typename T2::elem_type>::value),
- Mat<typename T1::elem_type>
- >::result
- min
- (
- const T1& x,
- const T2& y
- )
- {
- arma_extra_debug_sigprint();
-
- Mat<typename T1::elem_type> out;
-
- spglue_min::dense_sparse_min(out, x, y);
-
- return out;
- }
- //! elementwise min of sparse and dense objects with the same element type
- template<typename T1, typename T2>
- inline
- typename
- enable_if2
- <
- (is_arma_sparse_type<T1>::value && is_arma_type<T2>::value && is_same_type<typename T1::elem_type, typename T2::elem_type>::value),
- Mat<typename T1::elem_type>
- >::result
- min
- (
- const T1& x,
- const T2& y
- )
- {
- arma_extra_debug_sigprint();
-
- Mat<typename T1::elem_type> out;
-
- // Just call the other order (these operations are commutative)
- // TODO: if there is a matrix size mismatch, the debug assert will print the matrix sizes in wrong order
- spglue_min::dense_sparse_min(out, y, x);
-
- return out;
- }
- arma_warn_unused
- inline
- uword
- min(const SizeMat& s)
- {
- return (std::min)(s.n_rows, s.n_cols);
- }
- arma_warn_unused
- inline
- uword
- min(const SizeCube& s)
- {
- return (std::min)( (std::min)(s.n_rows, s.n_cols), s.n_slices );
- }
- //! @}
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