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Diffstat (limited to 'libodb-sqlite/odb/sqlite/traits.cxx')
| -rw-r--r-- | libodb-sqlite/odb/sqlite/traits.cxx | 219 |
1 files changed, 219 insertions, 0 deletions
diff --git a/libodb-sqlite/odb/sqlite/traits.cxx b/libodb-sqlite/odb/sqlite/traits.cxx new file mode 100644 index 0000000..a47455d --- /dev/null +++ b/libodb-sqlite/odb/sqlite/traits.cxx @@ -0,0 +1,219 @@ +// file : odb/sqlite/traits.cxx +// license : GNU GPL v2; see accompanying LICENSE file + +#include <odb/sqlite/traits.hxx> + +using namespace std; + +namespace odb +{ + namespace sqlite + { + using details::buffer; + + // + // default_value_traits<std::string> + // + void default_value_traits<string, id_text>:: + set_image (buffer& b, size_t& n, bool& is_null, const string& v) + { + is_null = false; + n = v.size (); + + if (n > b.capacity ()) + b.capacity (n); + + if (n != 0) + memcpy (b.data (), v.c_str (), n); + } + + // + // c_string_value_traits + // + void c_string_value_traits:: + set_image (buffer& b, size_t& n, bool& is_null, const char* v) + { + is_null = false; + n = strlen (v); + + if (n > b.capacity ()) + b.capacity (n); + + if (n != 0) + memcpy (b.data (), v, n); + } + + // + // c_array_value_traits_base + // + void c_array_value_traits_base:: + set_value (char* const& v, + const details::buffer& b, + size_t n, + bool is_null, + size_t N) + { + if (!is_null) + { + n = n < N ? n : N; + + if (n != 0) + memcpy (v, b.data (), n); + } + else + n = 0; + + if (n != N) // Append '\0' if there is space. + v[n] = '\0'; + } + + void c_array_value_traits_base:: + set_image (details::buffer& b, + size_t& n, + bool& is_null, + const char* v, + size_t N) + { + is_null = false; + + // Figure out the length. We cannot use strlen since it may + // not be 0-terminated (strnlen is not standard). + // + for (n = 0; n != N && v[n] != '\0'; ++n) ; + + if (n > b.capacity ()) + b.capacity (n); + + if (n != 0) + memcpy (b.data (), v, n); + } + + // + // default_value_traits<std::wstring> + // +#ifdef _WIN32 + void default_value_traits<wstring, id_text>:: + set_image (buffer& b, size_t& n, bool& is_null, const wstring& v) + { + is_null = false; + n = v.size () * 2; + + if (n > b.capacity ()) + b.capacity (n); + + if (n != 0) + memcpy (b.data (), v.c_str (), n); + } + + // + // c_wstring_value_traits + // + void c_wstring_value_traits:: + set_image (buffer& b, size_t& n, bool& is_null, const wchar_t* v) + { + is_null = false; + n = wcslen (v) * 2; + + if (n > b.capacity ()) + b.capacity (n); + + if (n != 0) + memcpy (b.data (), v, n); + } + + // + // c_warray_value_traits_base + // + void c_warray_value_traits_base:: + set_value (wchar_t* const& v, + const details::buffer& b, + size_t n, + bool is_null, + size_t N) + { + if (!is_null) + { + n /= 2; + n = n < N ? n : N; + + if (n != 0) + memcpy (v, b.data (), n * sizeof (wchar_t)); + } + else + n = 0; + + if (n != N) // Append '\0' if there is space. + v[n] = L'\0'; + } + + void c_warray_value_traits_base:: + set_image (details::buffer& b, + size_t& n, + bool& is_null, + const wchar_t* v, + size_t N) + { + is_null = false; + + // Figure out the length. We cannot use wcslen since it may + // not be 0-terminated (wcsnlen is not standard). + // + for (n = 0; n != N && v[n] != L'\0'; ++n) ; + + n *= 2; + + if (n > b.capacity ()) + b.capacity (n); + + if (n != 0) + memcpy (b.data (), v, n); + } +#endif // _WIN32 + + // + // default_value_traits<vector<char>, id_blob> + // + // std::vector has to be qualified for Sun CC. + // + void default_value_traits<std::vector<char>, id_blob>:: + set_image (details::buffer& b, + size_t& n, + bool& is_null, + const value_type& v) + { + is_null = false; + n = v.size (); + + if (n > b.capacity ()) + b.capacity (n); + + // std::vector::data() may not be available in older compilers. + // + if (n != 0) + memcpy (b.data (), &v.front (), n); + } + + // + // default_value_traits<vector<unsigned char>, id_blob> + // + // std::vector has to be qualified for Sun CC. + // + void default_value_traits<std::vector<unsigned char>, id_blob>:: + set_image (details::buffer& b, + size_t& n, + bool& is_null, + const value_type& v) + { + is_null = false; + n = v.size (); + + if (n > b.capacity ()) + b.capacity (n); + + // std::vector::data() may not be available in older compilers. + // + if (n != 0) + memcpy (b.data (), &v.front (), n); + } + } +} |