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    <p>I haven't done this in a while!</p> <p>Start with <code>foo</code> and go right.</p> <p><code>float * (*(*</code><sub><code>foo()</code></sub><code>)[SIZE][SIZE])()</code></p> <blockquote> <p>foo is a function with no arguments...</p> </blockquote> <p>Can't go right since there's a closing parenthesis. Go left:</p> <p><code>float * (*(</code><sub><code>* foo()</code></sub><code>)[SIZE][SIZE])()</code></p> <blockquote> <p>foo is a function with no arguments returning a pointer</p> </blockquote> <p>Can't go left further, so let's cross the parentheses and go right again</p> <p><code>float * (*</code><sub><code>(* foo())</code></sub><code>[SIZE][SIZE])()</code> <code>float * (*</code><sub><code>(* foo())[SIZE]</code></sub><code>[SIZE])()</code> <code>float * (*</code><sub><code>(* foo())[SIZE][SIZE]</code></sub><code>)()</code></p> <blockquote> <p>foo is a function with no arguments returning a pointer to an array of SIZE arrays of SIZE ...</p> </blockquote> <p>Closing parenthesis reached, left again to reach a pointer symbol:</p> <p><code>float * (</code><sub><code>*(* foo())[SIZE][SIZE]</code></sub><code>)()</code></p> <blockquote> <p>foo is a function with no arguments returning a pointer to an array of SIZE arrays of SIZE pointers to ...</p> </blockquote> <p>Left parenthesis again, so we cross it and go right again:</p> <p><code>float *</code><sub><code>( *(* foo())[SIZE][SIZE])</code></sub><code>()</code> <code>float *</code><sub><code>( *(* foo())[SIZE][SIZE])()</code></sub></p> <blockquote> <p>foo is a function with no arguments returning a pointer to an array of SIZE arrays of SIZE pointers to a function with no arguments...</p> </blockquote> <p>And left to the end</p> <p><sub><code>float * ( *(* foo())[SIZE][SIZE])()</code></sub></p> <blockquote> <p>foo is a function with no arguments returning a pointer to an array of SIZE arrays of SIZE pointers to a function with no arguments returning a pointer to float</p> </blockquote> <hr> <p>And whoever wrote that, please teach him to use <code>typedef</code>:</p> <pre><code>// Function that returns a pointer to float typedef float* PFloatFunc (); // Array of pointers to PFloatFunc functions typedef PFloatFunc* PFloatFuncArray2D[SIZE][SIZE]; // Function that returns a pointer to a PFloatFuncArray2D PFloatFuncArray2D* foo(); </code></pre>
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    1. POComplex C declaration
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    1. USPeter Mortensen
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    1. POComplex C declaration
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    1. CO+1 for "And whoever wrote that, please teach him to use typedef"
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      1. USDan Neely
    2. CONote that the 'no arguments' part is only correct for C++; for C, it means "unspecified argument list" (but it can't be a variadic function because those must have a full prototype in scope, even in C).
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      1. USJonathan Leffler
 

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