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Build # 11271424936

Build Type

push

github

Committed by web-flow

Commit Message

tsort: raise error for odd input tokens

* The input "a" by itself results in a fatal error for BSD and GNU versions
* Previously this version ignored odd arguments, but that is contrary to the standard [1]
* Also, the standard does not stipulate that each line contains only one pair
* When reading source code of OpenBSD version I discovered the input "a b b c b d d f c e" on one line is treated the same as for pairs on separate lines (GNU tsort behaves the same here)
* Accept multiple pairs per line for better compatibility, and remove the mention of the old limitation in the POD

1. https://pubs.opengroup.org/onlinepubs/9699919799/utilities/tsort.html

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350 of 479 relevant lines covered (73.07%)

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