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POMeasuring total space function allocates on heap and stack during it's entire lifetime
 

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    <p>I have a recursive function written in C++ that dynamically allocates 2D arrays using <code>new</code>. How could I measure the total amount space function allocates on heap and stack during it's entire lifetime ?</p> <p>Here is an example(it is not my code) of how to measure Stack.</p> <pre><code>unsigned int maxStackLocation ; unsigned int minStackLocation ; main () { //get the address of a local variable before calling Quicksort //the stack grows down, so this is the max stack location int localVariable; void *currPtrLocation = (void*)(&amp;localVariable); maxStackLocation = *(unsigned int *)(&amp;currPtrLocation); //we get the value for the minimum stack location in quicksort itself //call quicksort Quick (A, num); space = maxStackLocation - minStackLocation; } //some redundant function whose stack usage will be measured void Quick (unsigned int A[], int num) { if (num &lt;= 1) { //check the stack usage //figure out where we are on the stack by looking at the byte // address of the local variable //we do this by making a pointer to a local variable, and then //casting it to a integer void *currPtrLocation = (void*)(&amp;num); unsigned int currStackLocation = *(unsigned int*)(&amp;currPtrLocation); if (currStackLocation &lt; minStackLocation) minStackLocation = currStackLocation; return; } } </code></pre> <p><strong>Edit</strong><br> Borgleader points out that my original question "Measuring max space function allocates on heap and stack during it's entire lifetime" is incorrect. I have changed "max" to "total".</p>
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    1. COThere's an entire section in one of the books by Scott Meyer's on how there is no reliable way to differentiate between heap and stack allocation. You might be able to get total allocation but you wouldn't know in which of the two it happened.
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    2. CO@Borgleader Good point, I will probably revise my question.
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    3. COKeep a global variable and update it wherever you have a new statement
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