In a C++ function definition, an argument with an assigned value that specifies the value an argument should assume if none is supplied in the function call.
A default value associated with a function parameter. If a call to the function omits this argument, the default value is used. Parameters with default arguments must not appear to the left of parameters without default arguments. See argument.
a method of specifying a value for an argument to a function when the user of the function doesn't supply a value for that argument
a value given in the declaration
An argument that is declared with a default value in a function prototype or declaration. If a call to the function omits this argument, the default value is used. Arguments with default values must be the trailing arguments in a function prototype argument list. See argument.
The default for an argument is the value that will be assumed if you do not specify one. When the minibuffer is used to read an argument, the default argument is used if you just type RET. See section E. The Minibuffer.
The default for an argument is the value that is used if you do not specify one. When Emacs prompts you in the minibuffer for an argument, the default argument is used if you just type RET. See section 6. The Minibuffer.
In computer programming, a default argument is an argument to a function that a programmer is not required to specify. In most programming languages, functions may take one or more arguments. Usually, each argument must be specified in full (this is the case in the C programming language).
