github.com/benhoyt/goawk@v1.8.1/testdata/gawk/strcat1.awk (about)

     1  
     2  function f1(b) { b = b "c"; print f(b); }
     3  
     4  function f(a) { a = a "b"; return a; }
     5  
     6  BEGIN { A = "a"; f1(A); }