v?Pack

Developer Reference for Intel® oneAPI Math Kernel Library for Fortran

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ID 766686

Date 10/15/2026

Version

Public

v?Pack

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

Syntax

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)

Include Files

mkl_vml.f90

Input Parameters

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` .

Output Parameters

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` .

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Developer Reference for Intel® oneAPI Math Kernel Library for Fortran

v?Pack

Syntax

Include Files

Input Parameters

Output Parameters