| dnl @ ../doc/m4.texi:6261: Origin of test |
| dnl @ expected status: 1 |
| dnl @ extra options: |
| dnl @ Copyright (C) 2006, 2007, 2008, 2009 Free Software |
| dnl @ Foundation, Inc. |
| dnl @ This file is free software; the Free Software Foundation |
| dnl @ gives unlimited permission to copy and/or distribute it |
| dnl @ with or without modifications, as long as this notice |
| dnl @ is preserved. |
| eval(`2 = 2') |
| dnl @error{}m4:stdin:1: Warning: recommend ==, not =, for equality operator |
| dnl @result{}1 |
| eval(`++0') |
| dnl @error{}m4:stdin:2: invalid operator in eval: ++0 |
| dnl @result{} |
| eval(`0 |= 1') |
| dnl @error{}m4:stdin:3: invalid operator in eval: 0 |= 1 |
| dnl @result{} |
