Well, after some digging at the prompt, here’s what I get: stack = inspect.stack() the_class = stack[1][0].f_locals[“self”].__class__.__name__ the_method = stack[1][0].f_code.co_name print(“I was called by {}.{}()”.format(the_class, the_method)) # => I was called by A.a() When invoked: ➤ python test.py A.a() B.b() I was called by A.a() given the file test.py: import inspect class A: def a(self): … Read more
Queue can be generally thought as horizontal in structure i.e, breadth/width can be attributed to it – BFS, whereas Stack is visualized as a vertical structure and hence has depth – DFS.
Variables should be declared as locally as possible. Declaring variables “at the top of the function” is always a disastrously bad practice. Even in C89/90 language, where variables can only be declared at the beginning of the block, it is better to declare them as locally as possible, i.e. at the beginning of smallest local … Read more
It’s a gcc feature controlled by -mpreferred-stack-boundary=n where the compiler tries to keep items on the stack aligned to 2^n. If you changed n to 2, it would only allocate 8 bytes on the stack. The default value for n is 4 i.e. it will try to align to 16-byte boundaries. Why there’s the “default” … Read more
The most common way to determine the deepest stack usage is to initialize the stack memory with some known but unusual value, then periodically (or at the end of a big test run) see where that pattern stops. This is exactly how the IAR IDE determines the amount of stack used.
Your array is way too big to fit into the stack, consider using the heap: int *sieve = malloc(2000000 * sizeof(*sieve)); If you really want to change the stack size, take a look at this document. Tip: – Don’t forget to free your dynamically allocated memory when it’s no-longer needed.
Because the value type constructor might do anything — for example, switch logic based on the time of day. Constant value types makes sense intellectually, but it simply cannot work on custom value types in practice due to the flexibility of constructors to do whatever they please. (Remember that constants are evaluated at compile time, … Read more
iOS 5 introduced two new methods to handle exactly this type of situation. What you’re looking for is -[UIViewController isMovingToParentViewController]. From the docs: isMovingToParentViewController Returns a Boolean value that indicates that the view controller is in the process of being added to a parent. – (BOOL)isMovingToParentViewController Return Value YES if the view controller is appearing … Read more
Quite late, but here is the answer. Take two stacks: operator stack { for operators and parentheses }. operand stack. Algorithm If character exists to be read: If character is operand push on the operand stack, if character is (, push on the operator stack. Else if character is operator While the top of the … Read more
This is a classic data structures question. The intuition behind the problem is as follows – the only way that the maximum and minimum can change is if you push a new value onto the stack or pop a new value off of the stack. Given this, suppose that at each level in the stack … Read more