Michael: I have created a patch to update the current version of the operator table, as we have discussed. The current table is the K&R, 1st edition, and has not been updated in 30 years. Three updates are proposed, The first you have already added to the source. Numbers are the Sections within the C Standard changed. In C89/90 C Standard, the postfix, increment( ++ ) and decrement( -- ) operators, have been promoted to level 1, (Section: 6.3.2) leaving the prefix versions in the unary operators, on Level 2 (Section: 6.3.3). In C89/90 C Standard, the cast operator( (type) ), has been demoted to a new third level, (Section: 6.3.4) inserted between the unary operators, (Section: 6.3.3) and the multiplicative operators, (Section: 6.3.5) expanding the table to 16 levels. In C11 C Standard, a new unary operator, _Alignof has been added to the unary operators (Section: 6.5.3). I have made the additional changes along with the update you have already made. The proposed patch is shown below: diff --git a/man7/operator.7 b/man7/operator.7 index f22dc5d17..2e4b92b9f 100644 --- a/man7/operator.7 +++ b/man7/operator.7 @@ -37,18 +37,22 @@ .\" .\" 2007-12-08, mtk, Converted from mdoc to man macros .\" +.\" 2019-09-30, Updated for 2 changes, and 1 addition +.\" Rick Stanley <rstanley@xxxxxxxxx> .TH OPERATOR 7 2011-09-09 "Linux" "Linux Programmer's Manual" .SH NAME operator \- C operator precedence and order of evaluation .SH DESCRIPTION This manual page lists C operators and their precedence in evaluation. +Updated through the C18 C Standard .PP .TS lb lb lb l l l. Operator Associativity Notes () [] \-> . ++ \-\- left to right [1] -! ~ ++ \-\- + \- (type) * & sizeof right to left [2] +! ~ ++ \-\- + \- * & _Alignof sizeof right to left [2] +(type) right to left * / % left to right + \- left to right << >> left to right -- RSI (Rick Stanley, Inc.) (917) 822-7771 www.rsiny.com Computer Systems Consulting Linux & Open Source Specialists
