[tab:format.sign] (original) (raw)
28 Text processing library [text]
28.5 Formatting [format]
28.5.2 Format string [format.string]
28.5.2.2 Standard format specifiers [format.string.std]
Table 103 — Meaning of sign options [tab:format.sign]
| Indicates that a sign should be used for both non-negative and negative numbers. The + sign is inserted before the output of to_chars for non-negative numbers other than negative zero. [Note 5: For negative numbers and negative zero the output of to_chars will already contain the sign so no additional transformation is performed. — _end note_] |
|---|
| Indicates that a sign should be used for negative numbers and negative zero only (this is the default behavior). |
| Indicates that a leading space should be used for non-negative numbers other than negative zero, and a minus sign for negative numbers and negative zero. |