- Braces are mandatory for all control flow - Nested indentation should be kept to a minimum - Empty lines should be placed between different kinds of statements: int t; assert(io->bufuse > 0); assert(io->bufuse <= io->bs); if ((t = write(io->fd, io->buf, io->bufuse)) < 0) { io->error = errno; t = 0; } else if (t > 0) { memmove(io->buf, &(io->buf)[t], (io->bufuse -= t)); } io->bytes += t; io->prec += (t > 0 && io->bufuse > 0); io->rec += (t > 0 && io->bufuse == 0); return io; - Cases in switch statements and matches in match statements should be indented one level - In C, spaces should be placed in control flow statements after the keyword and before the opening brace: for (i = 2; i < argc; ++i) { - If a function, a C control flow statement, or a Rust macro has arguments that cause the statement to be broken into multiple lines, this should be done by placing the arguments on a new line inside the parentheses: let usage = format!( "Usage: {} [-d delimiter] index command [args...]", argv[0], ); - If Rust function arguments or fields are on their own lines, they should always have a trailing comma. - If text is on the same line as a brace, spaces should be placed after an opening curly brace and before a closing one: use sysexits::{ EX_DATAERR, EX_IOERR, EX_UNAVAILABLE, EX_USAGE }; - If a control flow statement is short enough to be easily understood in a glance, it may be placed on a single line: if (!argc < 0) { usage(program_name); } -- Copyright © 2024 Emma Tebibyte This work is licensed under CC BY-SA 4.0. To view a copy of this license, visit .