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author | Karen Arutyunov <karen@codesynthesis.com> | 2024-01-25 17:28:38 +0300 |
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committer | Karen Arutyunov <karen@codesynthesis.com> | 2024-01-25 17:28:38 +0300 |
commit | d9f372d7b1bc1abbff5fdf9735118290cd024d5e (patch) | |
tree | 49bc3160ea184e19cd5cb6a7404dee42311c0fd7 /libodb-pgsql/odb/pgsql/details/conversion.hxx | |
parent | 55e14d8f9697adeeb05fcd23cf8f19c33452bb56 (diff) |
Turn libodb-pgsql repository into package for muti-package repositorylibodb-pgsql
Diffstat (limited to 'libodb-pgsql/odb/pgsql/details/conversion.hxx')
-rw-r--r-- | libodb-pgsql/odb/pgsql/details/conversion.hxx | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/libodb-pgsql/odb/pgsql/details/conversion.hxx b/libodb-pgsql/odb/pgsql/details/conversion.hxx new file mode 100644 index 0000000..b4d7e4f --- /dev/null +++ b/libodb-pgsql/odb/pgsql/details/conversion.hxx @@ -0,0 +1,58 @@ +// file : odb/pgsql/details/conversion.hxx +// license : GNU GPL v2; see accompanying LICENSE file + +#ifndef ODB_PGSQL_DETAILS_CONVERSION_HXX +#define ODB_PGSQL_DETAILS_CONVERSION_HXX + +#include <odb/pgsql/traits.hxx> + +#include <odb/details/meta/answer.hxx> + +namespace odb +{ + // @@ Revise this. + // + namespace details {} + + namespace pgsql + { + namespace details + { + using namespace odb::details; + + // Detect whether conversion is specified in type_traits. + // + template <typename T> + meta::yes + conversion_p_test (typename type_traits<T>::conversion*); + + template <typename T> + meta::no + conversion_p_test (...); + + template <typename T> + struct conversion_p + { + static const bool value = + sizeof (conversion_p_test<T> (0)) == sizeof (meta::yes); + }; + + template <typename T, bool = conversion_p<T>::value> + struct conversion; + + template <typename T> + struct conversion<T, true> + { + static const char* to () {return type_traits<T>::conversion::to ();} + }; + + template <typename T> + struct conversion<T, false> + { + static const char* to () {return 0;} + }; + } + } +} + +#endif // ODB_PGSQL_DETAILS_CONVERSION_HXX |