diff options
Diffstat (limited to 'libodb-mssql/odb/mssql/mssql-fwd.hxx')
| -rw-r--r-- | libodb-mssql/odb/mssql/mssql-fwd.hxx | 216 |
1 files changed, 216 insertions, 0 deletions
diff --git a/libodb-mssql/odb/mssql/mssql-fwd.hxx b/libodb-mssql/odb/mssql/mssql-fwd.hxx new file mode 100644 index 0000000..44ac428 --- /dev/null +++ b/libodb-mssql/odb/mssql/mssql-fwd.hxx @@ -0,0 +1,216 @@ +// file : odb/mssql/mssql-fwd.hxx +// license : ODB NCUEL; see accompanying LICENSE file + +#ifndef ODB_MSSQL_MSSQL_FWD_HXX +#define ODB_MSSQL_MSSQL_FWD_HXX + +#include <odb/pre.hxx> + +#include <cstddef> // std::size_t + +// Forward declaration for some of the types defined in sqltypes.h or +// sqlncli.h. This allows us to avoid having to include these files +// in public headers. +// +#ifdef _WIN32 + +// Keep consistent with Windows ODBC headers. +// + +typedef long SQLINTEGER; +typedef unsigned long SQLUINTEGER; + +#ifdef _WIN64 +typedef __int64 SQLLEN; +typedef unsigned __int64 SQLULEN; +#else +#ifndef SQLLEN +typedef SQLINTEGER SQLLEN; +typedef SQLUINTEGER SQLULEN; +#endif +#endif + +#else // _WIN32 + +// Keep consistent with unixODBC headers. +// + +template <std::size_t sizeof_long> +struct odbc_types; + +template <> +struct odbc_types<4> +{ + typedef long integer; + typedef unsigned long uinteger; + + typedef integer len; + typedef uinteger ulen; +}; + +template <> +struct odbc_types<8> +{ + typedef int integer; + typedef unsigned int uinteger; + + typedef long len; + typedef unsigned long ulen; +}; + +typedef odbc_types<sizeof (long)>::integer SQLINTEGER; +typedef odbc_types<sizeof (long)>::uinteger SQLUINTEGER; + +#ifndef SQLLEN +typedef odbc_types<sizeof (long)>::len SQLLEN; +typedef odbc_types<sizeof (long)>::ulen SQLULEN; +#endif + +#endif // _WIN32 + +typedef short SQLSMALLINT; +typedef unsigned short SQLUSMALLINT; + +typedef SQLSMALLINT SQLRETURN; + +typedef void* SQLHANDLE; +typedef SQLHANDLE SQLHENV; +typedef SQLHANDLE SQLHDBC; +typedef SQLHANDLE SQLHSTMT; +typedef SQLHANDLE SQLHDESC; + +// If you get a redefinition error or warning for one of these macros, +// then that means you included this header (or one that includes it), +// before <sql.h> or <sqlext.h>. As a general rule, include <sql.h> or +// <sqlext.h> before any of the ODB headers. +// +#ifndef SQL_HANDLE_ENV +# define SQL_HANDLE_ENV 1 +# define SQL_HANDLE_DBC 2 +# define SQL_HANDLE_STMT 3 +# define SQL_HANDLE_DESC 4 +#endif + +#ifndef SQL_NULL_DATA +# define SQL_NULL_DATA (-1) +# define SQL_DATA_AT_EXEC (-2) +# define SQL_NO_TOTAL (-4) +#endif + +// The following types are our own equivalents of ODBC and Native Client +// ODBC driver types. They are all PODs and should be layout-compatible +// with the original types, which means they can be used interchangeably. +// +namespace odb +{ + namespace mssql + { + // UCS-2 character type (SQLWCHAR). + // +#ifdef _WIN32 + typedef wchar_t ucs2_char; +#else + typedef unsigned short ucs2_char; +#endif + + // SQL_NUMERIC_STRUCT + // +#ifndef SQL_MAX_NUMERIC_LEN +#define SQL_MAX_NUMERIC_LEN 16 +#else +# if SQL_MAX_NUMERIC_LEN != 16 +# error unexpected SQL_NUMERIC_STRUCT value +# endif +#endif + + struct decimal + { + unsigned char precision; + signed char scale; + unsigned char sign; // 1 - positive, 0 - negative + unsigned char val[SQL_MAX_NUMERIC_LEN]; + }; + + // DBMONEY + // + struct money + { + // 8-byte signed integer containing value * 10,000. + // + int high; + unsigned int low; + }; + + // DBMONEY4 + // + struct smallmoney + { + int value; // 4-byte signed integer containing value * 10,000. + }; + + // SQL_DATE_STRUCT + // + struct date + { + SQLSMALLINT year; + SQLUSMALLINT month; + SQLUSMALLINT day; + }; + + // SQL_SS_TIME2_STRUCT + // +#pragma pack(push,8) + struct time + { + SQLUSMALLINT hour; + SQLUSMALLINT minute; + SQLUSMALLINT second; + SQLUINTEGER fraction; + }; +#pragma pack(pop) + + // SQL_TIMESTAMP_STRUCT + // + struct datetime + { + SQLSMALLINT year; + SQLUSMALLINT month; + SQLUSMALLINT day; + SQLUSMALLINT hour; + SQLUSMALLINT minute; + SQLUSMALLINT second; + SQLUINTEGER fraction; + }; + + // SQL_SS_TIMESTAMPOFFSET_STRUCT + // +#pragma pack(push,8) + struct datetimeoffset + { + SQLSMALLINT year; + SQLUSMALLINT month; + SQLUSMALLINT day; + SQLUSMALLINT hour; + SQLUSMALLINT minute; + SQLUSMALLINT second; + SQLUINTEGER fraction; + SQLSMALLINT timezone_hour; + SQLSMALLINT timezone_minute; + }; +#pragma pack(pop) + + // SQLGUID + // + struct uniqueidentifier + { + unsigned int data1; + unsigned short data2; + unsigned short data3; + unsigned char data4[8]; + }; + } +} + +#include <odb/post.hxx> + +#endif // ODB_MSSQL_MSSQL_FWD_HXX |