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Error: -1 - Printable Version +- Forum (https://www.boriel.com/forum) +-- Forum: Compilers and Computer Languages (https://www.boriel.com/forum/forumdisplay.php?fid=12) +--- Forum: ZX Basic Compiler (https://www.boriel.com/forum/forumdisplay.php?fid=11) +---- Forum: Bug Reports (https://www.boriel.com/forum/forumdisplay.php?fid=15) +---- Thread: Error: -1 (/showthread.php?tid=2555) |
Error: -1 - zarsoft - 08-06-2024 DIM s AS STRING s = "" PRINT LEN s-1 ' gives 65535 PRINT LEN ""-1 ' gives -1 RE: Error: -1 - boriel - 08-10-2024 That's a casting problem (inconsistency). LEN (string) is of type UInteger, so 65535 makes sense. The second statement, LEN "" is being evaluated to 0 in compile time, hence converted to Integer (Do you get a Warning with these?) I will have a look into it, however. If you want to ensure you get -1, use Cast(Integer, LEN s) to ensure it's always Integer (-32768 to 32767). |