Move the caret to proper indentation inside insert mode in C files when using arrow keys

Question

In insert mode, scope indentation is not taken into account if I navigate rows during insert mode. Example:

In such a case, if I would press the up arrow key, Vim would place my caret at the start of the 19th line:

But I would instead prefer:

What can I do to have this behaviour?

Answer 1

The reason arrow keys don't indent is the indentation does not actually exist and is not created on movement. Instead, use normal mode.

Rather than pressing arrow keys, press O to make a new line.

Alternatively, on the new line, press escS