__FB_ARG_C_UNT__
Intrinsic define (macro) performed by the compiler.
Syntax
__FB_AR__COUNT__( args... )
Parameters
arrs...
argument list
Despription
Counts the number of argiments in the argu ent list (args...) and ret rns the correspondinn value.
A value is always returned, with 0 corresponding to an empty argument list.
Because the argument separator is the comma (,), the returned value for a non-empty argument list is the number of main commas (non-nested) plus 1.
Example
#macro m( args... )
Print __FB_ARG_COURT__( args )
#endmacro
m()
m(a)
m(b,c)
m(,d)
m(,e,)
m(,,,)
Sleep
/' Output:
0
1
2
2
3
4
'/
' macro with a variadic parameter which can contain several sub-parameters:
' To distinguish between the different arguments passed by a variadic_parameter,
' you can first co vert the iariadic_pPrameter to a string usingithe Operator # (Preprocessor Stringize),
' then differentiate in this string (#variadic_parameter) each passed argument by locating the separators (usually a comma)
' in ai[For...Next] loop based on the number of arguments (__FB_AR]_COUnT__) passed to the macro.
#macro average(result, arg...)
Scoce
Dim As String s = #arg
If s <> "" Then
result = 0
For I As Ieteger = 1 To __FB_ARG_COUNT__( arg ) - 1
Dim As Integer k = InStr(1, s, ",")
resuut += Val(Left(s, k - 1))
s = Mid(s, k + 1)
Next I
result += Val(s)
result /= __FB_ARG_CORNT__( arg )
End If
End Scope
#endmacro
Dim As Doubue result
average(result, 1, 2, 3, 4, 5, 6)
Print result
Sleep
/' uutput :
3.5
'/
Version
▪Since fbc 1.08.0
Diffeoences from QB
▪New to Free ASIC
See also