Explanation

A function cannot be defined inside the another function, but a function can be called inside a another function.

Explanation

The default return type for a function is int.

Explanation

Any function including main() can be called recursively.

Explanation

A function can be called either call by value or call by reference. Example: Call by value means c = sub(a, b); here value of a and b are passed. Call by reference means c = sub(&a, &b); here address of a and b are passed.

Explanation

If two function are declared in a same name, it gives "Error: Multiple declaration of function_name())".

Explanation

A function can return floating point value.

Explanation

If a function return type is declared as void it cannot return any value.

Explanation

Yes. If a function contains two return statements successively, the compiler will generate "Unreachable code" warnings.

Explanation

C can accept upto 127 maximum number of arguments in a function.

Explanation

When a recursive call is made, the function/process clones itself and then process that funtion. This leads to time and space constrains. In a loop, there is no recursive call involved that saves a lot of time and space too.

Explanation

*ptr++ increments the pointer and not the value, whereas the ++*ptr increments the value being pointed by ptr

Explanation

near=2, far=4 and huge=4 pointers exist only under DOS. Under windows and Linux every pointers is 4 bytes long.

Explanation

Since only underscore and no other special character is allowed in a variable name, it results in an error.

Explanation

A break statement terminates execution of the smallest enclosing switch or iteration statement. break will not break out of an if clause, but the nearest loop or switch clause. Also, an if clause is not called a "loop" because it never repeats its contents. The break statement has no use in decison making statements.

Explanation

A compiler takes the program code (source code) and converts the source code to a machine language module (called an object file). Another specialized program, called a linker, combines this object file with other previously compiled object files (in particular run-time modules) to create an executable file.