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PObison YYSTYPE: Trying to use char*
 

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    <p>I need to use flex and bison to parse some code.</p> <p>The default type of YYSTYPE is <code>int</code>, even though I never declared it that way. Is that a default from bison?</p> <p>It would help me a lot to pass strings back. I read this: <a href="https://stackoverflow.com/questions/1014619/how-to-solve-bison-warning-has-no-declared-type"><a href="https://stackoverflow.com/questions/1014619/how-to-solve-bison-warning-has-no-declared-type">How to solve Bison warning &quot;... has no declared type&quot;</a></a> This looks like a good approach. (I don't need the full power of a union yet, just the char* part, but I might as well use the union because it might be helpful later.)</p> <p>It's not working for me. I get these errors:</p> <pre><code>y:111.37-38: $1 of `ConstExpression' has no declared type y:113.34-35: $1 of `ConstFactor' has no declared type y:114.35-36: $1 of `ConstFactor' has no declared type y:119.34-35: $1 of `Type' has no declared type y:109.23-48: warning: type clash on default action: &lt;str&gt; != &lt;&gt; y:115.23-27: warning: type clash on default action: &lt;str&gt; != &lt;&gt; [...more of the same snipped...] </code></pre> <p>Here are the declarations from my <code>y</code> grammar file:</p> <pre><code>%union { char *str; } %type&lt;str&gt; ConstExpression ConstFactor Type </code></pre> <p>Here is one line from my <code>.l</code> file:</p> <pre><code>[a-zA-Z]+[a-zA-Z0-9]* { yylval.str = strdup(yytext); return yident;} </code></pre> <p>What else do I need to do to resolve the errors?</p>
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    1. CODo you seriously think people can debug your grammar file without seeing it?
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    2. CO@Kinopiko, did you seriously just downvote this because he didn't just paste his whole homework in and say "Show me teh codez"? Would it have killed you to just have said "I need more information; please post the whole grammar file" or some such?
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    3. CO@Kinopiko, when he posts the information you have requested, will you undo your downvote? That just seems harsh.
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