__FB_ERR__
Intrinsic define (macro value) set by the compiler
Syntax
`
__FB_ERR__
`
Description
`__FB_ERR__` indicates if -e, -ex, or -exx was specified on the compiler command line at the time of compilation of a module.
`__FB_ERR__` indicates if -earray, -enullptr, or -elocation was specified on the compiler command line, or implied by use of -exx, at the time of compilation of a module.
`__FB_ERR__` indicates if -edebug, -edebuginfo, or -eassert was specified on the compiler command line, or implied by use of -g, at the time of compilation of a module.
Returns bit-wise `OR` of the following values:

value | description
0 | '-e', '-ex', '-exx' and other error options not specified
1 | '-e' was specified
3 | '-ex' was specified (implies '-e')
7 | '-exx' was specified (implies '-e, -exx')
8 | '-earray' was specified (or implied by '-exx')
16 | '-enullptr' was specified (or implied by '-exx')
32 | '-eassert' was specified (or implied by '-g')
64 | '-edebuginfo' was specified (or implied by '-g')
128 | '-edebug' was specified (or implied by '-g')
256 | '-elocation' was specified (or implied by '-exx')

`__FB_ERR__` is always defined.
Example
`
'Example code to demonstrate a use of __FB_ERR__
Dim err_command_line As UByte
err_command_line = __FB_ERR__
Select Case err_command_line
Case 0
Print "No Error Checking enabled on the Command Line!"
Case 1
Print "Some Error Checking enabled on the Command Line!"
Case 3
Print "QBasic style Error Checking enabled on the Command Line!"
Case 7
Print "Extreme Error Checking enabled on the Command Line!"
Case Else
Print "Some Unknown Error level has been set!"
End Select
`
Differences from QB

- New to FreeBASIC

See also

- `__FB_MT__`
- `__FB_DEBUG__`
- Compiler Option: -e
- Compiler Option: -ex
- Compiler Option: -exx
- Error Handling