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VEC_$IADD_ADD_VECTOR_I            Domain/OS             VEC_$IADD_ADD_VECTOR_I


NAME
     vec_$iadd_add_vector_i - add three 32-bit integer vectors

SYNOPSIS (C)
     #include <apollo/base.h>
     #include <apollo/vec.h>

     void vec_$iadd_add_vector_i(
          long int *start_vec,
          long int &start_inc,
          long int *add_vec,
          long int &add_inc,
          long int *add_vec_2,
          long int &add_inc_2,
          long int &length,
          long int *result_vec,
          long int &result_inc)

SYNOPSIS (Pascal)
     %include '/sys/ins/base.ins.pas';
     %include '/sys/ins/vec.ins.pas';

     procedure vec_$iadd_add_vector_i(
          in start_vec: univ vec_$integer32_vector;
          in start_inc: integer32;
          in add_vec: univ vec_$integer32_vector;
          in add_inc: integer32;
          in add_vec_2: univ vec_$integer32_vector;
          in add_inc_2: integer32;
          in length: integer32;
          out result_vec: univ vec_$integer32_vector;
          in result_inc: integer32);

SYNOPSIS (FORTRAN)
     %include '/sys/ins/base.ins.ftn'
     %include '/sys/ins/vec.ins.ftn'

           parameter (nvec = 10)

           integer*4 start_vec(nvec), result_vec(nvec), add_vec(nvec), add_vec_2(nvec)
           integer*4 length
           integer*4 start_inc, add_inc, add_inc_2, result_inc

           call vec_$iadd_add_vector_i(start_vec, start_inc, add_vec, add_inc,
          & add_vec_2, add_inc_2, length, result_vec, result_inc)

DESCRIPTION
     Vec_$iadd_add_vector_i adds the vectors start_vec,  add_vec, and
     add_vec_2 and stores the final result in result_vec.  It differs from
     vec_$add_add_vector_i in that the vectors being handled contain 32-bit
     integers.

     This call, like all vec_$ calls ending in _i, takes a set of extra stride
     arguments, one for every vector argument.  The stride arguments determine
     which elements in the array are actually processed.  For instance, if the
     stride for a particular array is set to 3, every third element in the
     array will be processed by the routine.  The stride arguments need not be
     identical.  If all stride arguments are set to 1, this call behaves
     exactly like the version without the _i in its name.

     Initialize the counter variables J, K, L, and M to the low indices of the
     arrays start_vec, add_vec, add_vec_2, and result_vec.  In Fortran, the
     low index will be 1;  in C, it will be 0; in Pascal, it varies depending
     on the declaration.
     Execute the following equations length times:
     result_vec(M) = start_vec(J) + add_vec(K) + add_vec_2(L)
     J = J + start_inc
     K = K + add_inc
     L = L + add_inc_2
     M = M + result_inc

     start_vec
          An addend vector.

     start_inc
          The stride for start_vec.

     add_vec
          An addend vector.

     add_inc
          The stride for add_vec.

     add_vec_2
          An addend vector.

     add_inc_2
          The stride for add_vec_2.

     length
          The number of elements to be operated on;  normally the same as the
          number of elements in the vectors.

     result_vec
          The vector created by adding start_vec, add_vec, and add_vec_2.

     result_inc
          The stride for result_vec.

NOTES
     When vec_$iadd_add_vector_i is used to operate on matrixes in C and Pas-
     cal, start_vec, add_vec, add_vec_2, and result_vec are row vectors; in
     FORTRAN, they are column vectors.

     As in all the vec_$ calls, the result array must not overlap any of the
     input arrays; the result array may be identical to an input, but must not
     contain any subset of it.   Because of pipelining, using overlapping
     input and output arrays may cause incorrect results.


SEE ALSO
     vec_$add_mult_vector, vec_$sub_mult_vector, vec_$mult_add_vector,
     vec_$mult_sub_vector, vec_$mult_rsub_vector, vec_$sub_add_vector,
     vec_$mult_mult_vector, vec_$add_add_vector_i, vec_$add_add_vector_i,
     vec_$dadd_add_vector, vec_$dadd_add_vector_i, vec_$iadd_add_vector,
     vec_$iadd_add_vector16, vec_$iadd_add_vector16_i.