Is that difference between "Find All References" and "Callers Graph"
are:
1) Find All References -
All C++ functions / .cpp file that has used the "identifier" /
"function"
2) Callers Graph
All C++ function that calls the Class member.
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the problem is as you see from picture above, "Find All References"
will return a lot of .cpp / .h file but some of the result doesn't
have calls to the function I intended to search.
Why's that happen?