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
Dialect Differences
- Not available in the -lang qb dialect unless referenced with the alias __va_arg.
Differences from QB
See also