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Declarations inside a function is called local declaration

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14y ago

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What is a declaration of value?

Maybe you misinterpret something? There doesnt seem to be a declaration of value, but maybe declaration of variable?


When variables are declared in the body of a method they are know as what?

Local Variables There are two types of variables based on the location of declaration 1. Instance Variables- Declared inside a class, but outside of any method's body. 2. Local Variables- Declared inside a method's body inside a class.


What is a hole-in-scope?

when inner declaration of a variable hides its outer declaration


What is a global declaration?

A global declaration of a function or variable is a declaration that is at the global scope of the program, not inside another function. This means that the name will be visible within all functions in the program.


What will be the prototype of a user defined function?

In C programming, there are no built-in functions; all functions are user-defined. In order to use a function it must first be declared. This can be achieved by importing the header file containing the declaration (via the #include compiler directive) or by typing the declaration by hand. The definition (implementation) of a function is not required in order to use a function, but if a function is used it has to be defined somewhere (undefined functions will cause a link error). Where a function is used by several translation units, placing the declaration in a header file ensures the declaration is consistent across all translation units. Grouping declarations by purpose allows us to import several declarations at once. Declarations that are not used are simply ignored. A declaration informs the compiler of the function's name and type, and the number and type of its arguments, if any. This describes the interface to the function. A function's type is denoted by its return type. A function that has no return value is simply declared void (no type). The return type always comes first in a declaration, followed by the function name, which must be a unique identifier within the scope in which it is declared (global or local scope). A local name will mask a global name, effectively hiding it from the local scope. Function arguments (the formal arguments of the function) are delimited by parenthesis after the function name. A single argument of type void denotes no arguments while multiple argument types must be separated by commas (void types are not permitted in a multiple argument function). The complete declaration is terminated by a semi-colon immediately after the closing parenthesis. If the declaration is also a definition, the function body (the implementation) replaces the closing semi-colon. To assist with documentation, the formal arguments of a declaration may be named (unless the argument is void). However, where names are given, they need not match the corresponding names provided by a function's definition, where defined separately. Using longer descriptive names in the declaration helps document their purpose, while the definition can use shorter names that are easier to work with.

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