v?Pack

Developer Reference for Intel® oneAPI Math Kernel Library for Fortran

Download PDF

ID 766686

Date 4/28/2026

Version

Public

Copies elements of an array with specified indexing to a vector with unit increment.

call vspacki ( n , a , inca , y )

call vspackv ( n , a , ia , y )

call vspackm ( n , a , ma , y )

call vdpacki ( n , a , inca , y )

call vdpackv ( n , a , ia , y )

call vdpackm ( n , a , ma , y )

call vcpacki ( n , a , inca , y )

call vcpackv ( n , a , ia , y )

call vcpackm ( n , a , ma , y )

call vzpacki ( n , a , inca , y )

call vzpackv ( n , a , ia , y )

call vzpackm ( n , a , ma , y )

Name	Type	Description
`n`	INTEGER , INTENT(IN)	Specifies the number of elements to be calculated.
`a`	DOUBLE PRECISION for `vdpacki` , `vdpackv` , `vdpackm` COMPLEX for `vcpacki` , `vcpackv` , `vcpackm` DOUBLE COMPLEX for `vzpacki` , `vzpackv` , `vzpackm`	Specifies the input vector `a` . * Array, DIMENSION at least `(1 + (n-1)inca)` for `v?packi` , Array, DIMENSION at least `max( n,max(ia[j]) ), j=0, …, n-1` for `v?packv` , * Array, DIMENSION at least `n` for `v?packm` .
`inca`		Specifies the increment for the elements of `a` .
`ia`	FORTRAN 77: INTEGER for `vspackv` , `vdpackv` , `vcpackv` , `vzpackv`Fortran 90: INTEGER , INTENT(IN) for `vspackv` , `vdpackv` , `vcpackv` , `vzpackv`	Array, DIMENSION at least `n` . Specifies the index vector for the elements of `a` .
`ma`	FORTRAN 77: INTEGER for `vspackm` , `vdpackm` , `vcpackm` , `vzpackm`Fortran 90: INTEGER , INTENT(IN) for `vspackm` , `vdpackm` , `vcpackm` , `vzpackm`	Array, DIMENSION at least `n` , Specifies the mask vector for the elements of `a` .

Name	Type	Description
`y`	Fortran 77: DOUBLE PRECISION for `vdpacki` , `vdpackv` , `vdpackm`Fortran 77: COMPLEX for `vcpacki` , `vcpackv` , `vcpackm`Fortran 77: DOUBLE COMPLEX for `vzpacki` , `vzpackv` , `vzpackm`Fortran 90: REAL , INTENT(OUT) for `vspacki` , `vspackv` , `vspackm`Fortran 90: DOUBLE PRECISION , INTENT(OUT) for `vdpacki` , `vdpackv` , `vdpackm`Fortran 90: COMPLEX , INTENT(OUT) for `vcpacki` , `vcpackv` , `vcpackm`Fortran 90: DOUBLE COMPLEX , INTENT(OUT) for `vzpacki` , `vzpackv` , `vzpackm`	Array, DIMENSION at least `n` . Specifies the output vector `y` .