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sprintf formatting with "%+.2d" #936

eregon opened this Issue Aug 1, 2013 · 3 comments


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eregon commented Aug 1, 2013

$ ruby -e 'puts "%+.2d" % -9'
-09 -9

From the rdoc:

For numeric fields, the precision controls the number of decimal places
Examples of precisions:

  # precision for `d', 'o', 'x' and 'b' is
  # minimum number of digits               <------>
  sprintf("%20.8d", 123)  #=> "            00000123"
  sprintf("%20.8d", -123) #=> "           -00000123"

This makes a Date test fail so it would be valuable to me if it can be fixed quickly :)
(I looked at Sprintf with jdb but got kind of lost with a width of -3)

@ghost ghost assigned BanzaiMan Sep 2, 2013

@BanzaiMan BanzaiMan closed this in ba28553 Sep 2, 2013


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BanzaiMan commented Sep 2, 2013

We'd probably need specs for negative decimals with a given precision. is close, but not quite.


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eregon commented Sep 2, 2013

Great! I'll add a ruby spec for that case.


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