1 files changed, 116 insertions, 0 deletions
diff --git a/src/armadillo/include/armadillo_bits/fn_normalise.hpp b/src/armadillo/include/armadillo_bits/fn_normalise.hpp
new file mode 100644
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--- /dev/null
+++ b/src/armadillo/include/armadillo_bits/fn_normalise.hpp
@@ -0,0 +1,116 @@
+// 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_normalise
+//! @{
+
+
+
+template<typename T1>
+arma_warn_unused
+inline
+typename
+enable_if2
+  <
+  is_arma_type<T1>::value && resolves_to_vector<T1>::yes,
+  const Op<T1, op_normalise_vec>
+  >::result
+normalise
+  (
+  const T1&   X,
+  const uword p = uword(2),
+  const arma_empty_class junk1 = arma_empty_class(),
+  const typename arma_real_or_cx_only<typename T1::elem_type>::result* junk2 = nullptr
+  )
+  {
+  arma_extra_debug_sigprint();
+  arma_ignore(junk1);
+  arma_ignore(junk2);
+  
+  return Op<T1, op_normalise_vec>(X, p, 0);
+  }
+
+
+
+template<typename T1>
+arma_warn_unused
+inline
+typename
+enable_if2
+  <
+  is_arma_type<T1>::value && resolves_to_vector<T1>::no,
+  const Op<T1, op_normalise_mat>
+  >::result
+normalise
+  (
+  const T1&   X,
+  const uword p = uword(2),
+  const uword dim = 0,
+  const typename arma_real_or_cx_only<typename T1::elem_type>::result* junk = nullptr
+  )
+  {
+  arma_extra_debug_sigprint();
+  arma_ignore(junk);
+  
+  return Op<T1, op_normalise_mat>(X, p, dim);
+  }
+
+
+
+template<typename T1>
+arma_warn_unused
+inline
+const SpOp<T1, spop_normalise>
+normalise
+  (
+  const SpBase<typename T1::elem_type, T1>& expr,
+  const uword p = uword(2),
+  const uword dim = 0,
+  const typename arma_real_or_cx_only<typename T1::elem_type>::result* junk = nullptr
+  )
+  {
+  arma_extra_debug_sigprint();
+  arma_ignore(junk);
+  
+  return SpOp<T1, spop_normalise>(expr.get_ref(), p, dim);
+  }
+
+
+
+//! for compatibility purposes: allows compiling user code designed for earlier versions of Armadillo
+template<typename T>
+arma_warn_unused
+arma_inline
+typename
+enable_if2
+  <
+  is_supported_blas_type<T>::value,
+  Col<T>
+  >::result
+normalise(const T& val)
+  {
+  Col<T> out(1, arma_nozeros_indicator());
+  
+  out[0] = (val != T(0)) ? T(val / (std::abs)(val)) : T(val);
+  
+  return out;
+  }
+
+
+
+//! @}