Manual Reference Pages - cshift (3)
cshift(3f) - [FORTRAN:INTRINSIC:TRANSFORMATIONAL FUNCTION] Circular shift elements of an array
CONTENTS
Syntax
Description
Arguments
Return Value
Example
Standard
Class
SYNTAX
result = cshift(array, shift [, dim])
DESCRIPTION
cshift(array, shift [, dim]) performs a circular shift on elements of ARRAY along the dimension of DIM. If DIM is omitted it is taken to be 1. DIM is a scalar of type INTEGER in the range of 1 <= DIM <= n, where "n" is the rank of ARRAY. If the rank of ARRAY is one, then all elements of ARRAY are shifted by SHIFT places. If rank is greater than one, then all complete rank one sections of ARRAY along the given dimension are shifted. Elements shifted out one end of each rank one section are shifted back in the other end.
ARGUMENTS
ARRAY - Shall be an array of any type. SHIFT - The type shall be INTEGER. DIM - The type shall be INTEGER.
RETURN VALUE
Returns an array of same type and rank as the ARRAY argument.
EXAMPLE
Sample program:
program demo_cshift integer, dimension(3,3) :: a a = reshape( (/ 1, 2, 3, 4, 5, 6, 7, 8, 9 /), (/ 3, 3 /)) print ’(3i3)’, a(1,:) print ’(3i3)’, a(2,:) print ’(3i3)’, a(3,:) a = cshift(a, SHIFT=(/1, 2, -1/), DIM=2) print * print ’(3i3)’, a(1,:) print ’(3i3)’, a(2,:) print ’(3i3)’, a(3,:) end program demo_cshift
STANDARD
[[Fortran 95]] and later
CLASS
Transformational function
| cshift (3) | March 18, 2019 |
