Proposed resolution:

This wording is relative to N5014.

1. Modify [charconv.from.chars] as indicated:

   constexpr from_chars_result from_chars(const char* first, const char* last,
                                          integer-type& value, int base = 10);
   

   -2- Preconditions: `base` has a value between 2 and 36 (inclusive).

   -3- Effects: The pattern is the expected form of the subject sequence in the "C" locale for the given nonzero base, as described for `strtol`, except that no `"0b"` or `"0B"` prefix shall appear if the value of `base` is 2, no `"0x"` or `"0X"` prefix shall appear if the value of `base` is 16, and except that `'-'` is the only sign that may appear, and only if `value` has a signed type.

   -4- Throws: Nothing.

[ Kona 2025-11-08; Status changed: Immediate → WP. ]

[ Kona 2025-11-07; approved by LWG. Status changed: New → Immediate. ]

C23 added support for the `"0b"` and `"0B"` base prefix to `strtol`, and since the wording of `from_chars` for integers is based on `strol`, this inadvertently added support for parsing `"0b"` prefixes to `from_chars`.