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comparison interps/c-intercal/pit/tests/version.doc @ 996:859f9b4339e6
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| author | HackBot |
|---|---|
| date | Sun, 09 Dec 2012 19:30:08 +0000 |
| parents | |
| children |
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| 995:6883f5911eb7 | 996:859f9b4339e6 |
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| 1 version.4i is a simple program that tests what version of INTERCAL you are | |
| 2 running. | |
| 3 | |
| 4 Under INTERCAL-72, the .4i suffix is ignored, and the COME FROM lines are | |
| 5 splatted. So execution flows to the first splat line, where an error is | |
| 6 reported that prints out the required message. | |
| 7 | |
| 8 Under C-INTERCAL (or CLC-INTERCAL faking it), the ? is interpreted as XOR, | |
| 9 leaving a hugely large value in .1. So the second COME FROM doesn't match, | |
| 10 and the second splat line generates the error. | |
| 11 | |
| 12 Under CLC-INTERCAL (or C-INTERCAL using the -X option), the ? is interpreted | |
| 13 as BUT, leaving #5 in .1. So the second COME FROM finds the required line | |
| 14 label, and the third splat line generates the error. |