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Diffstat (limited to 'src/armadillo/include/armadillo_bits/fn_min.hpp')
-rw-r--r-- | src/armadillo/include/armadillo_bits/fn_min.hpp | 277 |
1 files changed, 277 insertions, 0 deletions
diff --git a/src/armadillo/include/armadillo_bits/fn_min.hpp b/src/armadillo/include/armadillo_bits/fn_min.hpp new file mode 100644 index 0000000..3baa128 --- /dev/null +++ b/src/armadillo/include/armadillo_bits/fn_min.hpp @@ -0,0 +1,277 @@ +// 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_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 ); + } + + + +//! @} |