Add secp256k1_num_eq and use it in tests #50

1. 
   sipa commented at 5:23 pm on August 9, 2014: contributor

   The previously used secp256k1_num_cmp is not sufficient, because it doesn’t compare sign.
2. Add secp256k1_num_eq and use it in tests 1a749b4a6e
3. sipa merged this on Aug 17, 2014
4. sipa closed this on Aug 17, 2014

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5. sipa referenced this in commit 8a0ee2357a on Aug 17, 2014
6. real-or-random referenced this in commit 7bc3f29348 on May 31, 2019

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sipa