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Learn more about: Function Call (C) |
Function Call (C) |
11/04/2016 |
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35c66719-3f15-4d3b-97da-4e19dc97b308 |
A function call is an expression that includes the name of the function being called or the value of a function pointer and, optionally, the arguments being passed to the function.
postfix-expression
:
postfix-expression
(
argument-expression-list
opt )
argument-expression-list
:
assignment-expression
argument-expression-list
,
assignment-expression
The postfix-expression
must evaluate to a function address (for example, a function identifier or the value of a function pointer), and argument-expression-list
is a list of expressions (separated by commas) whose values (the "arguments") are passed to the function. The argument-expression-list
argument can be empty.
A function-call expression has the value and type of the function's return value. A function can't return an object of array type. If the function's return type is void
(that is, the function has been declared never to return a value), the function-call expression also has void
type. For more information, see Function Calls.