mv_value_def.h File Reference

Type definitions for values. More...

Typedefs
typedef enum MVDataType_t	MVDataType_t
typedef enum MVValueType_t	MVValueType_t
typedef struct _MVValue_t *	MVValue_t
	Opaque data type which holds a single (scalar or array) value. More...

Enumerations
enum	MVDataType_t {   eMVDataType_Null = 0,   eMVDataType_Bool = 1,   eMVDataType_Int8 = 2,   eMVDataType_UInt8 = 3,   eMVDataType_Int16 = 4,   eMVDataType_UInt16 = 5,   eMVDataType_Int32 = 6,   eMVDataType_UInt32 = 7,   eMVDataType_Int64 = 8,   eMVDataType_UInt64 = 9,   eMVDataType_Float = 10,   eMVDataType_Double = 11,   eMVDataType_String = 12,   eMVDataType_Variant = 14 }
	Enumeration of the data types of scalar values or array elements. More...
enum	MVValueType_t {   eMVValueType_Null = 0,   eMVValueType_Scalar = 1,   eMVValueType_Array = 2 }
	Enumeration of the types of values which are supported. More...

Detailed Description

Type definitions for values.

Typedef Documentation

MVValue_t

typedef struct _MVValue_t* MVValue_t

Opaque data type which holds a single (scalar or array) value.

MVValue_t is a pointer to an opaque data structure. The data structure is initialized by MV_Value_Scalar_Init() and MV_Value_Array_Init(), and needs to be freed by MV_Value_Clear(). See mv_value.h for further functions for reading from and writing to values.

Enumeration Type Documentation

MVDataType_t

enum MVDataType_t

Enumeration of the data types of scalar values or array elements.

Remarks

The eMVDataType_Variant option only applies to inhomogeneous arrays in which each element may have a different data type. The data types of the individual elements can then be obtained through MV_Value_Array_GetDataType(). The other options apply to both scalar and array values. In case of the latter, they indicate homogeneous arrays.

Enumerator
eMVDataType_Null	Placeholder for an invalid default data type.
eMVDataType_Bool	Boolean value, true or false.
eMVDataType_Int8	Signed 8-bit integer.
eMVDataType_UInt8	Unsigned 8-bit integer.
eMVDataType_Int16	Signed 16-bit integer.
eMVDataType_UInt16	Unsigned 16-bit integer.
eMVDataType_Int32	Signed 32-bit integer.
eMVDataType_UInt32	Unsigned 32-bit integer.
eMVDataType_Int64	Signed 64-bit integer.
eMVDataType_UInt64	Unsigned 64-bit integer.
eMVDataType_Float	Single precision floating-point number.
eMVDataType_Double	Double precision floating-point number.
eMVDataType_String	UTF-8 encoded string.
eMVDataType_Variant	Inhomogeneous array value.

MVValueType_t

enum MVValueType_t

Enumeration of the types of values which are supported.

Enumerator
eMVValueType_Null	Placeholder for an invalid default value type.
eMVValueType_Scalar	A scalar value holds a single number or string.
eMVValueType_Array	An array holds a variable number of elements.