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Bookmark or Share- How do I determine the size of my array in C? - Stack OverflowThe sizeof way is the right way iff you are dealing with arrays not received as parameters. An array sent as a parameter to a function is treated as a pointer, so sizeof will return the pointer's size, instead of the array's.
- What is the meaning of arr [:] in assignment in numpy?arr[:] returns arr (alist[:] returns a copy of a list). arr[:]=arr2 performs an inplace replacement; changing the values of arr to the values of arr2. The values of arr2 will be broadcasted and copied as needed. arr=arr2 sets the object that the arr variable is pointing to. Now arr and arr2 point to the same thing (whether array, list or ...
- What is the difference between *&arr and *&arr[0] in C++, if arr is an ...Just like arr, this array lvalue decays to a pointer to first element when converted to an rvalue. Except for cases where the operators are overloaded, *& essentially cancel each other out. They are inverse operations. *&arr[0] gives you the same as arr[0] and *&arr gives you the same as arr.
- c++ - Why is arr and &arr the same? - Stack OverflowI know that &arr[0] and arr evaluates to the same number, but that is not my question! The question is why &arr and arr evaluates to the same number. If arr is a literal (not stored anyware), then the compiler should complain and say that arr is not an lvalue. If the address of the arr is stored somewhere then &arr should give me the address of ...
- Understanding nested for loops in javascript - Stack Overflowvar arr = [[1,2], [3,4], [5,6]]; for (var i=0; i
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