Use unique_ptr for an array, how to view each value in debug mode "local" or "watch" tags

user_10293779 0
Viewed 321

below are simple commands. what should I do to view the every array value in debug mode? 

    int N=3;
    unique_ptr<int []> I(new int[N]());

    for (int i=0; i<N; i++)
    {   
         I[i]=i*3;  
    }
c++11 c++
2 Answers

I assume the IDE to be visual studio. When you hit a breakpoint where I is in scope, open a Watch window and type I.get(),3 into a new row. get() gives you the raw int* pointer and 3 displays it in the watch as an int[3] array, with all its values listed.

Watch unique_ptr array example VS2017

Inspired by this question. This appears to work with frame pointers both turned on and off.

user_50234380

Compiling with frame pointers will help quite a bit. Without them, debugging won't be able to identify the locations of local variables that have been elided by removing them on x86 executables.

Admin1
Related