An action button: filled accent (Backup/Send) or outlined (Restore/Receive), label + the shoulder-key system glyph centered as a group. An empty `key`

A small folder glyph drawn from primitives (no gfx asset): a tab + body.

Icon sized into a `side`x`side` box at (x, y): SMDH icons scale down, small ones sit centered.

A save-kind rail button: square (radius 0), filled accent when active, faint fill otherwise, with the single kind letter over the small kind label.

'D','N' — DS NTR

! @brief dump a floating-point number Dump a given floating-point number to output stream @a o. Works internally with @a number_buffer.

Raw-index favorite lookup; reached only through filteredFavorite, which maps the filtered cell index back to the raw title index first.

! For n != 0, returns k, such that pow10 := 10^(k-1) <= n < 10^k. For n == 0, returns 1 and sets pow10 := 1. */

@brief return flattened JSON value @sa https://json.nlohmann.me/api/basic_json/flatten/

Submit all pending glyph atlas copies as one command list, ahead of the frame's own list so the queue's in-order execution puts every copy before the

26.6 fixed-point rounding, same macros SDL_ttf uses for glyph metrics.

! accept PASV connection for ftp session * * @param[in] session ftp session * * @returns -1 for failure */

! fill cdir directory entry * * @param[in] session ftp session * @param[in] path path to fill * * @returns errno */

! allocate new ftp session * * @param[in] listen_fd socket to accept connection from */

! open current working directory for ftp session * * @param[in] session ftp session * * @return -1 for failure */

! open file for reading for ftp session * * @param[in] session ftp session * * @returns -1 for error */

! open file for writing for ftp session * * @param[in] session ftp session * @param[in] append whether to append * * @returns -1 for error *

! poll sockets for ftp session * * @param[in] session ftp session * * @returns next session */

! read command for ftp session * * @param[in] session ftp session * @param[in] events poll events */

! read from an open file for ftp session * * @param[in] session ftp session * * @returns bytes read */

! transfer loop * * Try to transfer as much data as the sockets will allow without blocking * * @param[in] session ftp session */

! write to an open file for ftp session * * @param[in] session ftp session * * @returns bytes written */

! Transfer a directory * * @param[in] session ftp session * @param[in] args ftp arguments * @param[in] mode transfer mode * @p

! Transfer a file * * @param[in] session ftp session * @param[in] args ftp arguments * @param[in] mode transfer mode * * @returns fail

A 4-digit PIN from srand(time) is trivially predictable; seed from the system CSPRNG so a LAN peer can't reconstruct it from the clock.

Monotonic counter bumped whenever the catalog's contents change (full load, directory refresh, cart insert/remove). The UI compares it against the val

! For a normalized diyfp w = f * 2^e, this function returns a (normalized) cached power-of-ten c = f_c * 2^e_c, such that the exponent of the product

! Generates V = buffer * 10^decimal_exponent, such that M- <= V <= M+. M- and M+ must be normalized and share the same exponent -60 <= e <= -32. */

"1.2 MB" / "48.0 KB" / "512 B". One decimal above KB; bytes shown whole.