text: /* /////////////////////////////////////////////////////////////////////////
   * File:        stlsoft/string/case_functions.hpp
   *
   * Purpose:     String utility functions for manipulating case.
   *
   * Created:     1st April 2005
   * Updated:     19th February 2017
   *
   * Home:        http://stlsoft.org/
   *
   * Copyright (c) 2005-2017, Matthew Wilson and Synesis Software
   * All rights reserved.
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions are
   * met:
   *
   * - Redistributions of source code must retain the above copyright notice,
   *   this list of conditions and the following disclaimer.
   * - Redistributions in binary form must reproduce the above copyright
   *   notice, this list of conditions and the following disclaimer in the
   *   documentation and/or other materials provided with the distribution.
   * - Neither the name(s) of Matthew Wilson and Synesis Software nor the
   *   names of any contributors may be used to endorse or promote products
   *   derived from this software without specific prior written permission.
   *
   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
   * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
   * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
   * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
   * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
   * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
   * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
   * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
   * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
   * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
   * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   *
   * ////////////////////////////////////////////////////////////////////// */
  
  
  /** \file stlsoft/string/case_functions.hpp
   *
   * \brief [C++ only] String utility functions for manipulating case
   *   (\ref group__library__String "String" Library).
   */
  
  #ifndef STLSOFT_INCL_STLSOFT_STRING_HPP_CASE_FUNCTIONS
  #define STLSOFT_INCL_STLSOFT_STRING_HPP_CASE_FUNCTIONS
  
  #ifndef STLSOFT_DOCUMENTATION_SKIP_SECTION
  # define STLSOFT_VER_INCL_STLSOFT_STRING_HPP_CASE_FUNCTIONS_MAJOR       2
  # define STLSOFT_VER_INCL_STLSOFT_STRING_HPP_CASE_FUNCTIONS_MINOR       0
  # define STLSOFT_VER_INCL_STLSOFT_STRING_HPP_CASE_FUNCTIONS_REVISION    5
  # define STLSOFT_VER_INCL_STLSOFT_STRING_HPP_CASE_FUNCTIONS_EDIT        26
  #endif /* !STLSOFT_DOCUMENTATION_SKIP_SECTION */
  
  /* /////////////////////////////////////////////////////////////////////////
   * includes
   */
  
  #ifndef STLSOFT_INCL_STLSOFT_H_STLSOFT
  # include <stlsoft/stlsoft.h>
  #endif /* !STLSOFT_INCL_STLSOFT_H_STLSOFT */
  #ifdef STLSOFT_TRACE_INCLUDE
  # pragma message(__FILE__)
  #endif /* STLSOFT_TRACE_INCLUDE */
  
  #ifndef STLSOFT_INCL_STLSOFT_STRING_HPP_CTYPE_TRAITS
  # include <stlsoft/string/ctype_traits.hpp>
  #endif /* !STLSOFT_INCL_STLSOFT_STRING_HPP_CTYPE_TRAITS */
  #ifndef STLSOFT_INCL_STLSOFT_STRING_HPP_STRING_TRAITS
  # include <stlsoft/string/string_traits.hpp>
  #endif /* !STLSOFT_INCL_STLSOFT_STRING_HPP_STRING_TRAITS */
  #ifndef STLSOFT_INCL_STLSOFT_ALGORITHM_STD_HPP_ALT
  # include <stlsoft/algorithms/std/alt.hpp>
  #endif /* !STLSOFT_INCL_STLSOFT_ALGORITHM_STD_HPP_ALT */
  
  /* /////////////////////////////////////////////////////////////////////////
   * namespace
   */
  
  #ifndef STLSOFT_NO_NAMESPACE
  namespace stlsoft
  {
  #endif /* STLSOFT_NO_NAMESPACE */
  
  /* ////////////////////////////////////////////////////////////////////// */
  
  #ifndef STLSOFT_DOCUMENTATION_SKIP_SECTION
  
  template<   ss_typename_param_k S
          ,   ss_typename_param_k F
          >
  inline S& transform_impl(S& s, F f)
  {
      std_transform(s.begin(), s.end(), s.begin(), f);
  
      return s;
  }
  
  #endif /* !STLSOFT_DOCUMENTATION_SKIP_SECTION */
  
  /** Converts all characters in the string to upper case.
   *
   * \ingroup group__library__String
   */
  template <ss_typename_param_k S>
  inline S& make_upper(S& s)
  {
      typedef string_traits<S>                                string_traits_t;
      typedef ss_typename_type_k string_traits_t::char_type   char_t;
      typedef ctype_traits<char_t>                            ctype_traits_t;
  
      return transform_impl(s, &ctype_traits_t::to_upper);
  }
  
  /** Converts all characters in the string to lower case.
   *
   * \ingroup group__library__String
   */
  template <ss_typename_param_k S>
  inline S& make_lower(S& s)
  {
      typedef string_traits<S>                                string_traits_t;
      typedef ss_typename_type_k string_traits_t::char_type   char_t;
      typedef ctype_traits<char_t>                            ctype_traits_t;
  
      return transform_impl(s, &ctype_traits_t::to_lower);
  }
  
  /** Returns a copy of the source string in which all characters have
   *   been converted to upper case.
   *
   * \ingroup group__library__String
   */
  template <ss_typename_param_k S>
  inline S to_upper(S const& s)
  {
      S   r(s);
  
      make_upper(r);
  
      return r;
  }
  
  /** Returns a copy of the source string in which all characters have
   *   been converted to lower case.
   *
   * \ingroup group__library__String
   */
  template <ss_typename_param_k S>
  inline S to_lower(S const& s)
  {
      S   r(s);
  
      make_lower(r);
  
      return r;
  }
  
  /* ////////////////////////////////////////////////////////////////////// */
  
  #ifndef STLSOFT_NO_NAMESPACE
  } /* namespace stlsoft */
  #endif /* STLSOFT_NO_NAMESPACE */
  
  /* /////////////////////////////////////////////////////////////////////////
   * inclusion control
   */
  
  #ifdef STLSOFT_CF_PRAGMA_ONCE_SUPPORT
  # pragma once
  #endif /* STLSOFT_CF_PRAGMA_ONCE_SUPPORT */
  
  #endif /* !STLSOFT_INCL_STLSOFT_STRING_HPP_CASE_FUNCTIONS */
  
  /* ///////////////////////////// end of file //////////////////////////// */
  