dnl "m4.texinfo": 1267: Origin here
eval(-3 * 5)
dnl =>-15
eval(index(`Hello world', `llo') >= 0)
dnl =>1
define(`square', `eval(($1)^2)')
dnl =>
square(9)
dnl =>81
square(square(5)+1)
dnl =>676
define(`foo', `666')
dnl =>
eval(`foo'/6)
dnl *>examples/arithmetic.2: 14: bad expression in eval: foo/6
dnl =>
eval(foo/6)
dnl =>111
