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    <p><i>[Assuming you continue implementing your class' internals in the C-style, which may or may not be beneficial in terms of development and execution speed (depending on the whole project's design) but is generally not recommended in favor of </i><code>std::string</code><i> and friends.]</i></p> <p>Turning</p> <pre><code>const char *filename; </code></pre> <p>into</p> <pre><code>char *filename; </code></pre> <p>will not make you happy with the <code>strcpy</code>, since you actually need some memory for a copy of your string :)</p> <p>For the manual memory management code part, please see Tadeusz Kopec's answer, which seems to have it all right.</p> <p>Also, keep in mind that there is a difference between</p> <pre><code>const char *filename; // "filename" points to "const char" // and is not const itself char const *filename; // semantically the same as above </code></pre> <p>and</p> <pre><code>char * const filename; // "filename" is const and points to "char", // which is not const </code></pre> <p>In the first case, you can make <code>filename</code> point to any other <code>const char</code> string, in the second, you can only change that string "in-place" (so keeping the <code>filename</code> value the same, as it points to the same memory location). Of course one can combine these two (or none of them) if needed.</p> <p>P.S. If you name your member function's parameter <code>_filename</code> only to avoid naming collision with the member variable <code>filename</code>, you can just prefix it with <code>this</code> (and get rid of the underscore):</p> <pre><code>void MyClass::func (const char *filename) { ... this.filename = copy; } </code></pre>
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    1. CO...without allocating memory first? Ouch!
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    2. COah ,really :)) [stubstub]
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    3. COOK, that's workable. Always nice to make the case for C++ by showing the C way of doing things! ;-)
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