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copied!<p>Clang and LLVM have solved your issue by generating tables containing their objects, using a combination of code generation and preprocessor trickery.</p> <p>You can skip either step, depending on your own setup. For example:</p> <pre><code>// records.inc EXPAND_RECORD(Foo, "Foo", 4); EXPAND_RECORD(Bar, "Bar", 18); EXPAND_RECORD(Bar2, "Bar", 19); </code></pre> <p>Now, you can generate your enum:</p> <pre><code>// records.h enum Record { #define EXPAND_RECORD(Name, String, Value) Name, #include "records.inc" #undef EXPAND_RECORD }; char const* getRecordName(Record r); int getRecordValue(Record r); // records.cpp char const* getRecordName(Record r) { switch(r) { #define EXPAND_RECORD(Name, String, Value) case Name: return String; #include "records.inc" #undef EXPAND_RECORD } abort(); // unreachable, or you can return a "null" value } int getRecordValue(Record r) { switch(r) { #define EXPAND_RECORD(Name, String, Value) case Name: return Value; #include "records.inc" #undef EXPAND_RECORD } abort(); // unreachable, or you can return a "null" value } </code></pre> <p>In Clang and LLVM, a code generation phase is used to generate the .inc from more pleasant definition files.</p> <p>It works pretty well... but do be aware that any modification of the enum implies full recompilation. You might wish to go to a "codeset" approach, where the enum is used internally but never leaked outside, and stable values (those of the enum) are provided to the client (<code>unsigned</code>), so that old clients can link to the new libraries without recompilation: they will be limited to use the old set of codes, which is no problem if it's stable.</p>

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