va_arg
 
Returns the current argument from a variable argument list.

Syntax

variable = va_arg ( argument_list, datatype )

Description

The va_arg macro allows the use of a variable number of arguments within a function:
    • va_arg returns the current argument in the list, argument_list, with an expected data type of datatype.
    • Before first va_arg use, argument_list must be initialized with the command va_first.
    • Unlike the C macro with the same name, va_arg does not automatically increment argument_list to the next argument within the list. Instead va_next must be used to find the next argument in adjusting argument_list.

Not supported when using -gen gcc. Use Cva_List variadic argument list type for cross platform compatibility.

Example

See the Va_First() examples.

Dialect Differences

  • Not available in the -lang qb dialect unless referenced with the alias __va_arg.

Differences from QB

  • New to FreeBASIC

See also