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    <p>As the other people answering the question have shown, there isn't really a clean ("D.R.Y.") way to do this using the C preprocessor alone. The problem is that you need to define an array of size of your enum containing strings corresponding to each enum value, and the C preprocessor isn't smart enough to be able to do that. What I do is to create a text file something like this:</p> <pre><code>%status ok %meaning The routine completed its work successfully. % %status eof_reading_content %meaning The routine encountered the end of the input before it expected to. % </code></pre> <p>Here %'s mark delimiters.</p> <p>Then a Perl script, the working part of which looks like this,</p> <pre><code>sub get_statuses { my ($base_name, $prefix) = @_; my @statuses; my $status_txt_file = "$base_name.txt"; my $status_text = file_slurp ($status_txt_file); while ($status_text =~ m/ \%status\s+([a-zA-Z_][a-zA-Z0-9_]*)\s*\n \%meaning\s*(.*?)\s*\n\%\s*\n /gxs) { my ($code, $meaning) = ($1, $2); $code = $prefix."_$code"; $meaning =~ s/\s+/ /g; push @statuses, [$code, $meaning]; } return @statuses; } </code></pre> <p>reads this file and writes a header file:</p> <pre><code>typedef enum kinopiko_status { kinopiko_status_ok, kinopiko_status_eof_reading_content, </code></pre> <p>and a C file:</p> <pre><code>/* Generated by ./kinopiko-status.pl at 2009-11-09 23:45. */ #include "kinopiko-status.h" const char * kinopiko_status_strings[26] = { "The routine completed its work successfully.", "The routine encountered the end of the input before it expected to. ", </code></pre> <p>using the input file at the top. It also calculates the number 26 here by counting the input lines. (There are twenty-six possible statuses in fact.)</p> <p>Then the construction of the status string file is automated using <code>make</code>.</p>
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    1. COWould love to know why this was downvoted. The above is taken from a working program (only the name is changed!).
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    2. COI think that your answer would be a lot clearer if you posted some of the Perl script. In particular, why are there '%status' and '%meaning' strings? What do they have to do with the question? Further, the 'kinopiko_' isn't clear until someone looks at your user name.
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    3. COThere isn't much I can do about that last complaint, since if I posted the real name it would mean even less to you. I've posted a snippet of the perl parser for this.
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