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PODefault variables in class with g++
 

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  1. PODefault variables in class with g++
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    <p>I have a class which should only ever be initialized in a certain way. As part of the error checking, I have a <code>bool quality</code> which I want to have a default value of zero unless the correct constructor is called (which then checks the arguments to see whether it has been called correctly).</p> <pre><code>class CParameters { private: bool quality = 0; //Plus some additional code }; </code></pre> <p>gives me </p> <pre><code>warning: non-static data member initializers only available with -std=c++11 or -std=gnu++11 [enabled by default] bool quality = 0; ^ </code></pre> <p>Alternatively: </p> <pre><code>class CParameters { private: bool quality; public: CParameters; }; CParameters::CParameters { quality = 0; } </code></pre> <p>gives me the following error:</p> <pre><code>error: declaraion does not declare anything [-fpermissive] CParameters; ^ </code></pre> <p>Alternatively2: </p> <pre><code>class CParameters { private: bool quality; public: CParameters(); bool good(); }; CParameters::CParameters() { quality = 0; } bool CParameters::good() { return quality; } </code></pre> <p>and then calling it</p> <pre><code>CParameters CLI; CLI.good(); </code></pre> <p>gives this error:</p> <pre><code>error: request for member 'good' in 'CLI', which is of non-class type 'CParameters()' </code></pre> <p><strong>EDIT: The second alternative is correct. The reason CParameters() is a non-class is that I'm too dumb to actually compile parameters.cpp while compiling the other files.</strong></p>
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    1. COPay attention to the message you get. This is a C++11 feature which is supported by G++ in C++11 mode, so turn on C++11 mode.
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    2. COThat's going to be my last-case solution, but I remember initializing variables in classes well before c++11
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    3. COAre you sure that what you remember isn't initialising *static* variables in-class?
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