Which of the following statements regarding storage classes in C are CORRECT?
Static local variables retain values between calls and register variables cannot be referenced with '&'. Auto variables contain garbage by default, and extern does not allocate storage.
Which of the following storage classes have file scope when declared outside all functions?
Global variables declared outside functions can have static (internal linkage) or extern (external linkage) storage duration. 'auto' and 'register' cannot be used at file scope.
Which of the following statements about function calls in C are TRUE?
In C, primitive arguments are passed by value, arrays decay to pointers, and structures can be returned by value. Standard ISO C does NOT permit nested function definitions.
Which of the following keywords can be used to control the visibility and lifetime of functions in C?
static (internal linkage), extern (external linkage), and inline (expansion request) apply to functions. 'auto' applies only to local variables.
Which of the following statements about inline functions in C99 are CORRECT?
Inline is a compiler hint to substitute code at call site to eliminate call overhead. The compiler may ignore inline requests, and recursive functions can still be declared inline.