[stlport-bugs] [ stlport-Bugs-1938765 ] grouping in num_put.cpp is wrong

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Bugs item #1938765, was opened at 2008-04-09 16:02
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Category: General code
Group: 5.1
Status: Open
Resolution: None
Priority: 5
Private: No
Submitted By: Herve Bronnimann (hervebronnimann)
Assigned to: Nobody/Anonymous (nobody)
Summary: grouping in num_put.cpp is wrong

Initial Comment:
Here is a very short program showing how doubles can be output with grouping.  With STLPort, the output is as follows.  Notice the wrong placement of the ',' separator in several places:
  * in front of last group (+,1.234)
  * in front of the sign (,+12,34,5.678)
  * in infimity and nans (ooops!)
  * in very long numbers, the CHAR_MAX does not terminate grouping, instead it is taken literally as 255 (128 on signed char machines).

Positive numbers will work if the std::showpos is removed.

Here is the output:

Positive:
+,1.234
+,12,3.456
+1,23,4.567
,+12,34,5.678
+,123,45,6.789
+1,234,56,7.891
+123,456,78,9.123
+123456789012345680000000,000,00,0.000
+1797693134862315700000000000000000000000000000000,0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000,0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000,000,00,0.000
+,in,f

Negative:
-,1.234
-,12,3.456
-1,23,4.567
,-12,34,5.678
-,123,45,6.789
-1,234,56,7.891
-123,456,78,9.123
-123456789012345680000000,000,00,0.000
-1797693134862315700000000000000000000000000000000,0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000,0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000,000,00,0.000
-,in,f


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