tor/changes/laplace-edge-cases

  o Code simplifications and unit tests:
    - Handle edge cases in the laplace functions: avoid division by zero,
      avoid taking the log of zero, and silence clang type conversion
      warnings using round and trunc.  Add unit tests for edge cases with
      maximal values.
    - Consistently check for overflow in round_*_to_next_multiple_of
      functions, and add unit tests with additional and maximal values.
Tweak teor's and dgoulet's #13192 patches. - Rewrite changes file. - Avoid float comparison with == and use <= instead. - Add teor's tor_llround(trunc(...)) back to silence clang warnings. - Replace tt_assert() with tt_i64_op() and friends. - Fix whitespace and a comment. 2015-02-13 11:32:35 +01:00			`o Code simplifications and unit tests:`
			`- Handle edge cases in the laplace functions: avoid division by zero,`
			`avoid taking the log of zero, and silence clang type conversion`
			`warnings using round and trunc. Add unit tests for edge cases with`
			`maximal values.`
			`- Consistently check for overflow in round_*_to_next_multiple_of`
			`functions, and add unit tests with additional and maximal values.`