va_first
Returns the first argument in a variable argument list
pointer_variable = va_first()
The va_first function initializes a pointer, pointer_variable, to point to the first variable argument passed to a function.
The output would look like:
Syntax
pointer_variable = va_first()
Description
The va_first function initializes a pointer, pointer_variable, to point to the first variable argument passed to a function.
Example
Function Avg cdecl (Count As Integer, ... ) As Double
Dim ARG As Any Ptr
Dim SUM As Double = 0
Dim i As Integer
ARG = va_first()
For i = 1 To COUNT
SUM += va_arg(ARG, Double)
ARG = va_next(ARG,Double)
Next i
Return SUM/COUNT
End Function
Print AVG (4, 3.4,5.0,3.2,4.1)
Print AVG (2, 65.2,454.65481)
Sleep
Dim ARG As Any Ptr
Dim SUM As Double = 0
Dim i As Integer
ARG = va_first()
For i = 1 To COUNT
SUM += va_arg(ARG, Double)
ARG = va_next(ARG,Double)
Next i
Return SUM/COUNT
End Function
Print AVG (4, 3.4,5.0,3.2,4.1)
Print AVG (2, 65.2,454.65481)
Sleep
The output would look like:
3.925 259.927405
Dialect Differences
- Not available in the -lang qb dialect unless referenced with the alias __Va_first.
Differences from QB
- New to FreeBASIC
See also
