Revision [20577]

This is an old revision of KeyPgVaArg made by DkLwikki on 2016-02-10 16:10:14.



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 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.

See the va_first() examples.

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