tests/arith6.sub

   1 function reorder
   2 {
   3         (( x[1] < x && (x=x[1], x[1]=$x) ))
   4         echo "${x[@]}"
   5 }
   6
   7 x=(123 456)
   8 reorder
   9 x=(456 123)
  10 reorder
  11
  12 unset x
  13 unset -f reorder
  14
  15 function reorder
  16 {
  17         (( x[1] < x[0] && (x=x[1], x[1]=$x) ))
  18         echo "${x[@]}"
  19 }
  20
  21 x=(123 456)
  22 reorder
  23 x=(456 123)
  24 reorder
  25
  26 unset x
  27 unset -f reorder
  28
  29 function reorder
  30 {
  31         (( x[1] < x[0] && (x[0]=x[1], x[1]=$x) ))
  32         echo "${x[@]}"
  33 }
  34
  35 x=(123 456)
  36 reorder
  37 x=(456 123)
  38 reorder
  39
  40 unset -f reorder
  41
  42 n=0 ; (( (a[n]=++n)<7&&a[0])); echo "${a[@]:1}"
  43
  44 n=0 a="(a[n]=++n)<7&&a[0]"; ((a[0])); echo "${a[@]:1}"
  45
  46 n=0 a="(a[n]=n++)<7&&a"; ((a)); echo "${a[@]:1}"
  47
  48 # bugs with lvalue caching and pointer aliasing through bash-4.2
  49 echo $(( a=(y[0] + y[1]) & 0xff, b=(y[2] + y[3]) & 0xff, a << 8 | b))
  50 echo $a, $b
  51 ((a = y[0], b = 1 ))
  52 echo $a, $b