github.com/benhoyt/goawk@v1.8.1/testdata/gawk/arryref2.awk (about)

     1  BEGIN {
     2  	foo(a)
     3  
     4  	for (i in a)
     5  		print i, a[i]
     6  }
     7  
     8  function foo(b)
     9  {
    10  	bar(b)
    11  	b[2] = "local"
    12  }
    13  
    14  function bar(c)
    15  {
    16  	a[3] = "global"
    17  	c[1] = "local2"
    18  }