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C Library Functions  - union (3)

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NAME

union(3f) - [M_sets] return union values in array A

CONTENTS

Synopsis
Description
Options
Example
Authors
License

SYNOPSIS

union(A,B, setOrder)

DESCRIPTION

Set union of two arrays.
	C = union(A,B) returns the combined data from A and B with no repetitions. C is in sorted order.

OPTIONS

A	input array
B	input array
setOrder
	May be "sort" or "stable"

EXAMPLE

sample program:

   program demo_union
   use M_sets, only: union
   character(len=*),parameter :: g=’(*(g0,1x))’
   integer, allocatable      :: A(:)
   integer, allocatable      :: B(:)

      write(*,g) ’UNION’, ’Find the union of vectors A and B.’
      A=[5, 7, 1]
      B=[3, 1, 1]
      write(*,g) ’A=’, A
      write(*,g) ’B=’, B
      write(*,g) union(A,B)

      A=[5, 5, 3]
      B=[1, 2, 5]
      write(*,g) ’A=’, A
      write(*,g) ’B=’, B
      write(*,g) union(A, B, ’sorted’)
      write(*,g) union(A, B, ’stable’)

   end program demo_union

‘‘‘ Results:

 > UNION Find the union of vectors A and B.
 > A= 5 7 1
 > B= 3 1 1
 > 1 3 5 7
 > A= 5 5 3
 > B= 1 2 5
 > 1 2 3 5
 > 5 3 1 2

AUTHORS

John S. Urban, 2023-07-20

LICENSE

CC0-1.0

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Nemo Release 3.1

union (3)

July 22, 2023

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