Fix existing examples so they pass all tests about c HOT 6 CLOSED

I think the issue with Hello World is that a stub is provided named hello_world.c. When you try to rename example.c to hello_world.c it fails and so runs the tests with the empty implementation and fails all 3 tests. When I tested by removing hello_world.c and example.c all tests pass.

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I don't see any failures for Anagram. What failure are you seeing?

from c.

Yep, good call about Hello World. As for Anagram, I'm getting:
anagram.c:163:test_multiple_anagrams:FAIL: Expected 3 Was 0 on OS X with LLVM 8.0.0.
...
However, on Ubuntu 16.04 with GCC 5.4.0, everything passes.

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I can't get a failure for Anagram either (Ubuntu 12.04 & 16.04). I even tried it using GCC 4.8, which I think I heard was the version on Travis (?) but that worked fine as well.

I will take a more in-depth look tomorrow and test the failure on Travis.

We need to get this running before putting more exercises in. #71 wouldn't even compile, one of the test names was wrong.

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Ok, I'm not sure what was going on before, but Anagram is now working for me. Maybe fed3ddf fixed it?

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I think it's quite likely that it did. I think this is good to go.

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