Hello Rick, On 9/20/19 4:19 PM, Rick Stanley wrote: > Greetings! > > In the man pages, both in Linux and online in multiple sites, the pre > and post operators are listed as equal precedence. Two different web > sites list them on different levels: > > http://man7.org/linux/man-pages/man7/precedence.7.html > Level 1 > > https://linux.die.net/man/7/operator > Level 2 > > Linux `man operator` list them on the second level, with right to left > associativity: > > Operator Associativity > () [] -> . left to right > ! ~ ++ -- + - (type) * & sizeof right to left > ... > > Section "A.2.1 Expressions" of both the C99 & C11 C Draft Standards, > list them on different levels: > > postfix ++ & -- on level 1, with left to right associativity > > prefix ++ & -- on level 2, with right to left associativity So, Harbison & Steele also seems to agree here. Things changed since K&R! I've fixed the page: Operator Associativity Notes () [] -> . ++ -- left to right [1] ! ~ ++ -- + - (type) * & sizeof right to left [2] [...] The following notes provide further information to the above ta‐ ble: [1] The ++ and -- operators at this precedence level are the post‐ fix flavors of the operators. [2] The ++ and -- operators at this precedence level are the pre‐ fix flavors of the operators. > Please review this and all the operator precedence and associativity in > the current man page "man operator" against the official C99 & C11 > Standards documents, plus the current working draft for the next > version of the Standard. You are free to do so. But please don't demand that someone else does so, even if you say "please". Thank you for the bug report! Cheers, Michael -- Michael Kerrisk Linux man-pages maintainer; http://www.kernel.org/doc/man-pages/ Linux/UNIX System Programming Training: http://man7.org/training/
