Revision [21513]

This is an old revision of KeyPgVaArg made by fxm on 2016-07-25 16:07:09.



Returns the current argument from a variable argument list.

variable = va_arg ( argument_list, datatype )

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.

Note: Not supported when using gcc.

See the va_first() examples.

Dialect Differences:
Differences from QB:
See also:
Back to Procedures
Back to Variable Argument list
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