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A function with void result type ends either by reaching the end of the function or by executing a return statement with no returned value. The void type may also replace the argument list of a function prototype to indicate that the function takes no arguments. Note that in all of these situations, void is not a type
Restrict functions to a single printed page. Use a minimum of two runtime assertions per function. Restrict the scope of data to the smallest possible. Check the return value of all non-void functions, or cast to void to indicate the return value is useless. Use the preprocessor only for header files and simple macros.
For functions, this is then followed by the type information; as format() is a void function, this is simply v; hence: _ZN9wikipedia7article6formatEv For print_to , the standard type std::ostream (which is a typedef for std::basic_ostream<char, std::char_traits<char> > ) is used, which has the special alias So ; a reference to this type is ...
A function definition starts with the name of the type of value that it returns or void to indicate that it does not return a value. This is followed by the function name, formal arguments in parentheses, and body lines in braces. In C++, a function declared in a class (as non-static) is called a member function or method.
The function and the caller use different types of exception handling (C++ exception handling in one, structured exception handling in the other). The function has a variable argument list. The function uses inline assembly, unless compiled with /Og, /Ox, /O1, or /O2. The function is recursive and not accompanied by #pragma inline_recursion(on ...
The void pointer, or void*, is supported in ANSI C and C++ as a generic pointer type. A pointer to void can store the address of any object (not function), [a] and, in C, is implicitly converted to any other object pointer type on assignment, but it must be explicitly cast if dereferenced.
A function signature consists of the function prototype. It specifies the general information about a function like the name, scope and parameters. Many programming languages use name mangling in order to pass along more semantic information from the compilers to the linkers. In addition to mangling, there is an excess of information in a ...
A function with non-void return type should include at least one return statement. The parameters are given by the <parameter-list>, a comma-separated list of parameter declarations, each item in the list being a data type followed by an identifier: <data-type> <variable-identifier>, <data-type> <variable-identifier>, ....