include/comphelper/optional.hxx

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  14  *   ownership. The ASF licenses this file to you under the Apache
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  19 #ifndef INCLUDED_COMPHELPER_OPTIONAL_HXX
  20 #define INCLUDED_COMPHELPER_OPTIONAL_HXX
  21
  22 #include <com/sun/star/beans/Optional.hpp>
  23 #include <boost/optional.hpp>
  24
  25 namespace comphelper {
  26
  27 /// Object generators for boost::optional<T>, beans::Optional<T>:
  28
  29 template <typename T>
  30 inline ::boost::optional<T> make_optional( T const& v )
  31 {
  32     return ::boost::optional<T>(v);
  33 }
  34
  35 template <typename T>
  36 inline ::boost::optional<T> make_optional(
  37     ::com::sun::star::beans::Optional<T> const& o )
  38 {
  39     if (o.IsPresent)
  40         return ::boost::optional<T>(o.Value);
  41     else
  42         return ::boost::optional<T>();
  43 }
  44
  45 template <typename T>
  46 inline ::com::sun::star::beans::Optional<T> makeOptional( T const& v )
  47 {
  48 //     CPPU_IS_CPP_MAPPING_OF_NON_VOID_UNO_TYPE(T);
  49     return ::com::sun::star::beans::Optional<T>(true, v);
  50 }
  51
  52 template <typename T>
  53 inline ::com::sun::star::beans::Optional<T> makeOptional(
  54     ::boost::optional<T> const& o )
  55 {
  56 //     CPPU_IS_CPP_MAPPING_OF_NON_VOID_UNO_TYPE(T);
  57     if (o)
  58         return ::com::sun::star::beans::Optional<T>(true, *o);
  59     else
  60         return ::com::sun::star::beans::Optional<T>();
  61 }
  62
  63 inline ::com::sun::star::beans::Optional<sal_Bool> makeOptional(
  64     ::boost::optional<bool> const& o )
  65 {
  66     if (o)
  67         return ::com::sun::star::beans::Optional<sal_Bool>(true, *o);
  68     else
  69         return ::com::sun::star::beans::Optional<sal_Bool>();
  70 }
  71
  72 inline ::com::sun::star::beans::Optional<sal_Bool> makeOptional( bool v )
  73 {
  74     return ::com::sun::star::beans::Optional<sal_Bool>(true, v);
  75 }
  76
  77 } // namespace comphelper
  78
  79 #endif // ! defined(INCLUDED_COMPHELPER_OPTIONAL_HXX)
  80
  81 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */