Get information about a data type
dip_Error dip_DataTypeGetInfo( dataType, info, whatInfo )
| Data type | Name | Description |
| dip_DataType | dataType | The data type to get information about |
| void * | info | Pointer to a variable to put the information in |
| dipf_DataTypeGetInfo | whatInfo | What information should be returned |
Get information about a data type. Depending on the whatInfo flag this routine will return information about the data type through the info parameter. A pointer must be passed to this routine which must point to a variable of the proper type to contain the information which will be returned. This pointer is passed as a void pointer through the info parameter. Below is a table of the flags that determine what information is returned, the type of the variable that is used to store the information in and a description of the information that is returned.
| dipf_DataTypeGetInfo | type | description |
| DIP_DT_INFO_PROPS | dip_DataTypeProperties | a set of flags as shown in the table below |
| DIP_DT_INFO_SIZEOF | dip_int | sizeof( data type ) |
| DIP_DT_INFO_C2R | dip_DataType | for complex types returns the corresponding floating point type (i.e. dip_scomplex -> dip_sfloat) for other data types returns the data type itself |
The following table shows which dip_DataTypeProperties flags are set for which data types:
| Data type identifier group | data types |
| DIP_DT_IS_UINT | unsigned integer |
| DIP_DT_IS_UNSIGNED | unsigned integer |
| DIP_DT_IS_SINT | signed integer |
| DIP_DT_IS_INT | signed and unsigned integer |
| DIP_DT_IS_INTEGER | signed and unsigned intege |
| DIP_DT_IS_FLOAT | floating-point |
| DIP_DT_IS_REAL | integer and floating-point |
| DIP_DT_IS_COMPLEX | complex floating-point |
| DIP_DT_IS_SIGNED | signed integer, floating-point and complex |
| DIP_DT_IS_BINARY | binary |
| DIP_DT_IS_ANY | all |