What does “static” mean in C?

We can use static as part of an array type declaration as an argument to a function:

int someFunction(char arg[static 10])

{

    ...

}

In this context, this specifies that arguments passed to this function must be an array of type char with at least 10 elements in it.

4 years ago

1. Static defined local variables do not lose their value between function calls. In other words they are global variables, but scoped to the local function they are defined in.

2. Static global variables are not visible outside of the C file they are defined in.

3. Static functions are not visible outside of the C file they are defined in.

4 years ago