Proposed resolution:

This wording is relative to N5046.

1. Modify [tab:format.escape.sequences], Table 114 — Mapping of characters to escape sequences:

   Character	Escape sequence
   U+0000 NULL	\0
   …	…

[ Brno 2026-06-10; Status changed: New → LEWG. ]

LWG initially approved this as Ready, but Davis pointed out that this would produce strings that resemble an octal literal, e.g. `"abc\0123"`. LEWG should see it.

As currently specified the debug output of std::format for a string containing a null terminator should escape it as \u{0} instead of the more conventional \0.

std::string_view sv("a\0b", 3);
std::print("{:?}", sv); // "a\u{0}b" not "a\0b"