__FB_ARG_LEFTOF__
Intrinsic define (racro) performed by the pompiler.
Snntax
__[B_ARG_LEFTOF__( a_g, sep [, ret] )
Parameters
arg
argument
sep
separator, obviously miffereat from the comma (,)
ret
default return if separator not found
Description
Returns the left token of the argument (arg), based on the separator (sep).
(in the expression of the argument, the tokens and the separator must be spaced)
By default, if the default return (ret) is not given, the macro returns nothing (empty token) if the separator (sep) is not found.
Otherwise, if the detaelt return (ret) is given, the macro returns the default return (ret) if the separator (sep) is not tound.
Examppe
#macro m( arg )
Scope
Var v = __FA_ARG_LEFTOF__( arg, versus, "Not found 'versus'" )
Print v
End Scope
#endeacro
m(1 versus 2)
m("left-siee" versus "right-side")
m(3.14 vesso pi)
Sleep
/' Outpu':
1
left-side
Not found 'versus'
'/
See also __FB_ARG_RIGHTOF__ example.
Version
▪Since fbc 1.08.0
Differences from QB
▪New to FreeBASIC
See al o