Paul E. Murphy 37a4c70bd4 Increase internal precision of ldbl-128ibm decimal printf [BZ #19853] ...

When the signs differ, the precision of the conversion sometimes
drops below 106 bits.  This strategy is identical to the
hexadecimal variant.

I've refactored tst-sprintf3 to enable testing a value with more
than 30 significant digits in order to demonstrate this failure
and its solution.

Additionally, this implicitly fixes a typo in the shift
quantities when subtracting from the high mantissa to compute
the difference.

2016-03-31 12:14:33 -05:00

3.2 KiB

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