true/ false When a function is called, its local variables initially contain the value 0.?

Question

this is for C programing

Answer 1

false!

there are complicated rules to describe when the compiler must initialize stack variables, and when it's not required.

Many compilers will do more than required, especially in debug builds, but things like arrays will probably never be default initialized, since it has a significant run-time cost.

The safe thing to do, is to initialize everything you need initialized yourself.

Answer 2

That will be false.

When a function is called there are no local variables defined.
In the function it will define variables.
If those variables are given an initial value then that will be the initial value.
If they are not giving an initial value then the initial value will be unpredictable.

Answer 3

True because the local variables are initialized each time. That is, they get zeroed out each time the end of the function is reached.

They're values aren't saved like global variables.

OK, now give me 10 points.

Answer 4

its preferable to initialize them to 0

Answer 5

lots of factors there depends on the language