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[ruby/bigdecimal] Improve documentation of BigDecimal#sign

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Fixes https://github.com/ruby/bigdecimal/issues/78 by describing behaviour for positive and negative zero in the docs.

https://github.com/ruby/bigdecimal/commit/5415b120ab
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Maciek Rząsa 2022-07-28 14:30:10 +02:00 committed by git
parent 81b919ce5c
commit 8e2c425183
1 changed files with 4 additions and 2 deletions
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6
ext/bigdecimal/bigdecimal.c
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@ -3606,8 +3606,10 @@ BigDecimal_limit(int argc, VALUE *argv, VALUE self)
/* Returns the sign of the value.
*
* Returns a positive value if > 0, a negative value if < 0, and a
* zero if == 0.
* Returns a positive value if > 0, a negative value if < 0.
* It behaves the same with zeros -
* it returns a positive value for a positive zero (BigDecimal('0')) and
* a negative value for a negative zero (BigDecimal('-0')).
*
* The specific value returned indicates the type and sign of the BigDecimal,
* as follows: