StackOverflow2013

Note that there are some explanatory texts on larger screens.

plurals

POC++ Method chaining on constructor
text
Body
copied!<p>I'm trying allow for method chaining on the Constructor and I have ran into the same problem on this <a href="https://stackoverflow.com/questions/2877175/c-method-chaining-including-class-constructor">C++ method chaining including class constructor</a> and I have tried the suggested answers but still getting the same error. My code is below:</p> <pre><code>class Signal { public: Signal() { } Signal& Emphasize() { return *this; } }; enum ReadType { NATIVE = 0, DOUBLE, }; class Wav : public Signal { public: Wav(string fileName, ReadType type) { } }; </code></pre> <p>I have tried calling from the following:</p> <pre><code>Wav* wave = new Wav("asf", DOUBLE).Emphasize(); </code></pre> <p>And:</p> <pre><code>Wav wave = Wav("asf", DOUBLE).Emphasize(); </code></pre> <p>I don't know whether the actual process is possible since "Emphasize" it's not a constructor but hopefully I will be allowed to access it. What could I be doing wrong here for this not to work?</p> <p>Hope someone can help :) </p> <p>UPDATE:</p> <p>I put "Emphasize()" as a class member inside "Wav" and it worked, how I wanted. BUT does anyone know of a way I can access this member inside "Signal" without having to place the class member inside of "Wav"?</p> <p>UPDATE:</p> <pre><code>class Signal { public: Signal() { } Signal* Emphasize() { return this; } }; enum ReadType { NATIVE = 0, DOUBLE, }; class Wav : public Signal { public: Wav(string fileName, ReadType type) { } }; int main(int argc, char *argv[]) { Wav* wave = new Wav("asf", DOUBLE)->Emphasize(); } </code></pre>

Querying!

Guidance

An individual column

Larger individual text columns get their own page to allow for proper reading.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload