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5f5c67b281
library/cord.m:
Add is_singleton/2, foldr2/6 and foldr3/8.
NEWS:
Announce the above additions.
tests/hard_coded/Mmakefile:
tests/hard_coded/test_cord3.{m,exp}:
Add a test of is_singleton/2 (and is_empty/1).
12 lines
301 B
Plaintext
12 lines
301 B
Plaintext
Empty is empty.
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Singleton1 is not empty.
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Singleton2 is not empty.
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NonSingleton1 is not empty.
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NonSingleton2 is not empty.
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Empty is not a singleton.
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Singleton1 is a singleton with element 1.
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Singleton2 is a singleton with element 2.
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NonSingleton1 is not a singleton.
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NonSingleton2 is not a singleton.
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