ERNUM¶
| Syntax | ERNUM |
| Location | QL ROM (post JM version) |
This function returns the error number of the last error which occurred. An error number is negative and can be returned by any program (SuperBASIC, jobs, M/C Toolkits,…). The equivalent error messages are the same on all of the implementations of SuperBASIC, although they are also supported in different languages (see the Appendix for other languages):
| Error | English message |
|---|---|
| -1 | Not Complete |
| -2 | Invalid Job |
| -3 | Out of Memory |
| -4 | Out of Range |
| -5 | Buffer Full |
| -6 | Channel not Open |
| -7 | Not Found |
| -8 | Already Exists |
| -9 | In Use |
| -10 | End of File |
| -11 | Drive Full |
| -12 | Bad Name |
| -13 | Xmit Error |
| -14 | Format Failed |
| -15 | Bad Parameter |
| -16 | Bad or Changed Medium |
| -17 | Error in Expression |
| -18 | Overflow |
| -19 | Not Implemented Yet |
| -20 | Read Only |
| -21 | Bad Line |
NOTE
Jobs may return a positive error number. The meaning of such a number depends on the job. No error message will be reported.
SMS NOTE
The error messages have been redefined to try to make them more intelligent, they are now:
| Error | English message |
|---|---|
| -1 | Incomplete |
| -2 | Invalid Job ID |
| -3 | Insufficient memory |
| -4 | Value out of range |
| -5 | Buffer full |
| -6 | Invalid channel ID |
| -7 | Not found |
| -8 | Already exists |
| -9 | Is in use |
| -10 | End of file |
| -11 | Medium is full |
| -12 | Invalid name |
| -13 | Transmission error |
| -14 | Format failed |
| -15 | Invalid parameter |
| -16 | Medium check failed |
| -17 | Error in expression |
| -18 | Arithmetic overflow |
| -19 | Not implemented |
| -20 | Write protected |
| -21 | Invalid syntax |
| -22 | Unknown message |
| -23 | Access denied |
Other errors are reported by the SBASIC interpreter, but these are not covered by ERNUM.
CROSS-REFERENCE
ERLIN returns the line number where the error occurred. ERNUM% is the same as this function. REPORT invokes an error message and WHEN ERRor can be used to trap errors. The ERR_XX functions are alternatives to ERNUM.