Revision [15315]

This is an old revision of KeyPgVaArg made by DkLwikki on 2011-10-01 10:09:40.

 

VA_ARG


Returns the current argument from a variable argument list.

Syntax:
variable = va_arg ( argument_list, DataType 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 KeyPgVaFirst 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. The command KeyPgVaNext va_next must be used for this purpose.

Examples:
See the KeyPgVaFirst va_first() examples.

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