title: Parsing string to pointer
body: <p>Suppose I have the memory address as a string representation (say "0x27cd10"). How can I convert this to a pointer (void*)?</p>
  
  <p>i.e.</p>
  
  <pre><code>int main() {
       const char* address = "0x29cd10";
       void* p;
  
       // I want p to point to address 0x29cd10 now...
  
       return 0;
  }
  </code></pre>