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// file : odb/mssql/mssql-fwd.hxx
// copyright : Copyright (c) 2005-2019 Code Synthesis Tools CC
// 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
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