__FB_UNIQUEID_PUSH__
Intrinsic define (macro) performed by the compiler.
Syntax
`
__FB_UNIQUEID_PUSH__( stack-id )
`
Parameters
`stack-id`
the name of the stack to push
Description
Pushes a new unique identifier on to a stack identified by `stack-id` (the size of the stack is increased by 1).
(`__FB_UNIQUEID__` allows to get the identifier at the top of the stack, and `__FB_UNIQUEID_POP__` allows to pop an identifier off of the stack)
Note:
- The "stack-id" name itself is a separate namespace from all other symbols.
- The stack can only contain "unique identifiers".
- "unique identifier" is a name of an fb symbol that is unique to the module, so does not conflict or shadow other symbol names ("unique identifier" will have the form "LT_xxxx" as a name so it might not be completely unique).
- fb uses the form "LT_xxxx" internally for labels, symbols, temp variables, etc (so should avoid naming fbc symbols of this form for any fbc program since version 0.0).
When such a stack is no longer in use, it is recommended that it be empty (at the end there must have been applied as many `__FB_UNIQUEID_POP__` as `__FB_UNIQUEID_PUSH__` for this stack).
At any time of its use, the number of `__FB_UNIQUEID_POP__` applied from the beginning must always be less than or equal to the number of `__FB_UNIQUEID_PUSH__` applied.
Example
See also `__FB_UNIQUEID__` example.
`
' As the "unique identifiers" (used as jump labels) are successively pushed on to a stack,
' the jump-code bodies must be defined in the reversed order than the jump calls.
#macro go
__FB_UNIQUEID_PUSH__( stk )
Goto __FB_UNIQUEID__( stk )
End If
#endmacro
#macro end_go
__FB_UNIQUEID__( stk ):
__FB_UNIQUEID_POP__( stk )
#endmacro
Dim As Integer N
Do
Input "Enter a value between 1 and 4 (0 or empty input for exit) ? ", N
If N = 0 Then go
If N = 1 Then go
If N = 2 Then go
If N = 3 Then go
If N = 4 Then go
Continue Do
end_go
Print "You entered 4" : Continue Do
end_go
Print "You entered 3" : Continue Do
end_go
Print "You entered 2" : Continue Do
end_go
Print "You entered 1" : Continue Do
end_go
Print "End" : Exit Do
Loop
Sleep
`
See also `__FB_UNIQUEID_POP__` example.
Version

- Since fbc 1.08.0

Differences from QB

- New to FreeBASIC

See also

- `__FB_UNIQUEID_POP__`
- `__FB_UNIQUEID__`