sopc_numeric_range.h File Reference

#include <stddef.h>
#include <stdint.h>
#include "sopc_enums.h"

Go to the source code of this file.

Data Structures
struct	_SOPC_Dimension
struct	_SOPC_NumericRange

Typedefs
typedef struct _SOPC_Dimension	SOPC_Dimension
typedef struct _SOPC_NumericRange	SOPC_NumericRange

Functions
SOPC_ReturnStatus	SOPC_NumericRange_Parse (const char *range, SOPC_NumericRange **result)
	Parses a numeric range as described in Part 4 § 7.22.
void	SOPC_NumericRange_Delete (SOPC_NumericRange *range)

Typedef Documentation

SOPC_Dimension

typedef struct _SOPC_Dimension SOPC_Dimension

SOPC_NumericRange

typedef struct _SOPC_NumericRange SOPC_NumericRange

Function Documentation

SOPC_NumericRange_Parse()

SOPC_ReturnStatus SOPC_NumericRange_Parse	(	const char *	range,
		SOPC_NumericRange **	result )

Parses a numeric range as described in Part 4 § 7.22.

Parameters

range	the string describing the range, range validity is checked (the first integer shall have a lower value than the second)
result	the allocated parsed range in case of success, or NULL in case of failure

Returns

SOPC_STATUS_OK in case of success, or an error code in case of failure.

The specification does not explicitly tell on how many bits range bounds are to be encoded. Array/string/bytestring sizes in OPC-UA are 32 bit signed integers. In order to reflect the positive nature of range bounds while covering the range of valid value sizes and minimizing memory usage, we use unsigned 32 bit integers for range bounds. Passing range bounds that don't fit in an unsigned 32 bit integer will make this function return SOPC_STATUS_NOK .

SOPC_NumericRange_Delete()

void SOPC_NumericRange_Delete

(

SOPC_NumericRange *

range

)