XSD Simple Type to C/C++ Type Mappings

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XSD built-in simple type declarations are mapped directly to C types defined in the osSysTypes.h run-time header file. The general mapping of each XSD simple type to a C type is as follows:

XSD Built-In Type	C Type (in osSysTypes)	C Type (base)
anyURI	OSXMLSTRING	unsigned char*
anyType	OSXSDAnyType	struct
base64Binary	OSDynOctStr	struct
boolean	OSBOOL	unsigned char
byte	OSINT8	char
date	OSXMLSTRING	unsigned char*
dateTime	OSXMLSTRING	unsigned char*
decimal	OSREAL	double
double	OSREAL	double
duration	OSXMLSTRING	unsigned char*
ENTITIES	OSRTDList	linked list struct
ENTITY	OSXMLSTRING	unsigned char*
float	OSREAL	double
gDay	OSXMLSTRING	unsigned char*
gMonth	OSXMLSTRING	unsigned char*
gMonthDay	OSXMLSTRING	unsigned char*
gYear	OSXMLSTRING	unsigned char*
gYearMonth	OSXMLSTRING	unsigned char*
hexBinary	OSDynOctStr	struct
ID	OSXMLSTRING	unsigned char*
IDREF	OSXMLSTRING	unsigned char*
IDREFS	OSRTDList	linked list struct
integer	OSINT32	int
int	OSINT32	int
language	OSXMLSTRING	unsigned char*
long	OSINT64	long (64-bit integer type)
Name	OSXMLSTRING	unsigned char*
NCName	OSXMLSTRING	unsigned char*
negativeInteger	OSINT32	int
NMTOKEN	OSXMLSTRING	unsigned char*
NMTOKENS	OSRTDList	linked list struct
nonNegativeInteger	OSUINT32	unsigned int
nonPositiveInteger	OSINT32	int
normalizedString	OSXMLSTRING	unsigned char*
positiveInteger	OSUINT32	unsigned int
short	OSINT16	short
string	OSXMLSTRING	unsigned char*
time	OSXMLSTRING	unsigned char*
token	OSXMLSTRING	unsigned char*
unsignedByte	OSUINT8	unsigned char
unsignedShort	OSUINT16	unsigned short
unsignedInt	OSUINT32	unsigned int
unsignedLong	OSUINT64	unsigned long (64-bit)

For C++, class wrappers are added around each of these types when they are used in simple type declarations. In most cases, these classes contain a single public member variable called value that holds the value of the type. They also contain a constructor and assignment operator for setting the value.

The following sections provide more detail on these mappings.