Developer Reference for Intel® oneAPI Math Kernel Library for C
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vsldNewAbstractStream
Creates and initializes an abstract random stream for double precision floating-point arrays.
Syntax
status = vsldNewAbstractStream( &stream, n, dbuf, a, b, dcallback );
Include Files
- mkl.h
 
Input Parameters
Name  |  
      Type  |  
      Description  |  
     
|---|---|---|
n  |  
      const MKL_INT  |  
      Size of the array dbuf  |  
     
dbuf  |  
      const double  |  
      Array of n double precision floating-point random numbers with uniform distribution over interval (a,b)  |  
     
a  |  
      const double  |  
      Left boundary a  |  
     
b  |  
      const double  |  
      Right boundary b  |  
     
dcallback  |  
      See Note below  |  
      Pointer to the callback function used for update of the array dbuf  |  
     
Output Parameters
Name  |  
      Type  |  
      Description  |  
     
|---|---|---|
stream  |  
      VSLStreamStatePtr*  |  
      Descriptor of the stream state structure  |  
     
Format of the callback function:
int dUpdateFunc( VSLStreamStatePtr stream, int* n, double dbuf[], int* nmin, int* nmax, int* idx );
The callback function returns the number of elements in the array actually updated by the function.Table dcallback Callback Function Parameters gives the description of the callback function parameters.
Parameters  |  
        Short Description  |  
       
|---|---|
stream  |  
        Abstract random stream descriptor  |  
       
n  |  
        Size of dbuf  |  
       
dbuf  |  
        Array of random numbers associated with the stream stream  |  
       
nmin  |  
        Minimal quantity of numbers to update  |  
       
nmax  |  
        Maximal quantity of numbers that can be updated  |  
       
idx  |  
        Position in cyclic buffer dbuf to start update 0≤idx<n.  |  
       
Description
The vsldNewAbstractStream function creates a new abstract stream for double precision floating-point arrays with random numbers of the uniform distribution over interval (a,b). The function associates the stream with a double precision array dbuf and your callback function dcallback that is intended for updating of dbuf content.
Return Values
- VSL_ERROR_OK, VSL_STATUS_OK
 -  
     
Indicates no error, execution is successful.
 - VSL_ERROR_BADARGS
 -  
     
Parameter n is not positive.
 - VSL_ERROR_MEM_FAILURE
 -  
     
System cannot allocate memory for stream.
 - VSL_ERROR_NULL_PTR
 -  
     
Either buffer or callback function parameter is a NULL pointer.