Revision [21268]
This is an old revision of KeyPgVaArg made by fxm on 2016-03-18 08:43:45.
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 va_arg can be used, it 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.
Note: Not supported when using gcc.
Note: Not supported when using gcc.
Examples:
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:
Back to Procedures
Back to Variable Argument list