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PO64-bit build in OSX - inconsistant malloc error
 

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  1. PO64-bit build in OSX - inconsistant malloc error
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    <p>I'm getting a very inconsistant error in Xcode: </p> <pre><code>malloc: *** error for object 0x1041146f8: incorrect checksum for freed object - object was probably modified after being freed. *** set a breakpoint in malloc_error_break to debug </code></pre> <p>I know that it's not my code directly because a 32-bit build works just fine (Architecture set to Standard 32/64 and Build Active Architectures Only is set to No). It also will occasionally work just fine without me changing even a comment, but only about %10 of the time.</p> <p>I've traced the error using breakpoints, sometimes it happens on an ivar like: myClass = new MyClass, but sometimes it happens on deleting an unrelated ivar. I've tried setting myClass to null prior to the new instances creation but that didn't help, and I'm at a loss because I don't completely understand caching, registers, heaps, and stacks (which may give insight into why this is happening).</p> <p>Here's some of the code in the places I'm getting the error. Note that each set of lines of code is a different place, and class, where the error may, or may not, happen.</p> <p>error 1</p> <pre><code>void functionA() { // bunch of unrelated code if (aAinterpFilter) delete aAinterpFilter; // this is where the first error sometimes happens aAinterpFilter = new InterpFilter((Window::Sinc::LP*)filterDesign, aAinterpFactor); } </code></pre> <p>error 2</p> <pre><code>Window::Sinc::LP::~LP () { // the z delete is where the error sometimes happens delete[] z; delete[] kernel; } </code></pre> <p>error 3</p> <pre><code>void AAOsc :: setPhase(double phase) { if (phase &lt; 0.0) phase = 0.0; if (phase &gt; 1.0) phase = 1.0; // this is where the error rarely happens, but it does sometimes. osc-&gt;tickInfo-&gt;curvPhase = static_cast&lt;uint&gt;(phase * 4294967296.0); } </code></pre> <p>Any ideas that may point to the solution will be greatly appreciated.</p> <p>GW</p>
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    1. COSome code please...
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    2. COI would but the code is so convoluted that it could make it more confusing. I can if you think it's necessary though
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