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Re: $# handles zero arguments incorrectly.
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From: |
Eric Blake |
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Subject: |
Re: $# handles zero arguments incorrectly. |
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Date: |
Sat, 12 Jan 2008 16:54:44 -0700 |
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User-agent: |
Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.1.9) Gecko/20071031 Thunderbird/2.0.0.9 Mnenhy/0.7.5.666 |
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According to R. Clayton on 1/12/2008 12:08 PM:
| $ m4 --version
| m4 (GNU M4) 1.4.10
| $ cat bad
| define(`nargs', `$#')
| nargs()
Not a bug. You were invoking nargs with one argument, the empty string.
To invoke a macro without arguments, you must omit the (). The manual
should make this clear:
http://www.gnu.org/software/m4/manual/html_node/Pseudo-Arguments.html#Pseudo-Arguments
- --
Don't work too hard, make some time for fun as well!
Eric Blake address@hidden
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