US227 20.20.02.2 [format.string.std] p5 Add "z" format modifier to avoid sign for zero-display numbers P1496 #224
Description
We believe that the lack of a way to suppress the negative sign on numbers which are rounded up to zero by the specified precision is a defect which will affect most users of format string.
Proposed change:
Add: “'z' Indicates that a sign should not be used for negative numbers that display as zero (after rounding to the formatting precision).” To table 59. The details of the change will be proposed in P1496R1 in the pre-Belfast mailing. A “D” version of this paper was discussed in Kona this year. cplusplus/papers#605