https://wiki.cmukgb.org/index.php?action=history&feed=atom&title=Bang 2026-05-09T16:58:52Z Revision history for this page on the wiki MediaWiki 1.28.2 https://wiki.cmukgb.org/index.php?title=Bang&diff=1900&oldid=prev 2006-11-21T07:28:17Z

<p></p> <p><b>New page</b></p><div>Though its public persona is intrusive and abrasive, the humble '''exclamation mark''' is one of syntax's most important and yet delicate creations.<br /> <br /> ==Common Uses of the Delicate yet Humble Exclamation Mark==<br /> <br /> * [[President_Salute|Factorial operator]]<br /> * Exponential modality<br /> * Negation in C-like languages<br /> * Reference unboxing in SML '97<br /> * Typographic variant of '1' or 'l'<br /> * In pairs, list indexing in Haskell<br /> * Calligraphic error<br /> * Extremely makeshift up-arrow or down-arrow, depending how you look at it<br /> * Produces a vertical line on keyboards without a proper pipe key<br /> * In emacs, equivalent to M-x viet-encode-viqr-region under the correct bindings<br /> * With '#', interpreted executable escape in Unix<br /> * Comment character in Fortran '90<br /> * Under the Bourne shell, a varaible containing the process ID of the most recent background job<br /> * In perl, a variable containing a description of the most recent error condition<br /> * Solitaire, a pseudoword indicating an expression of surprise or alarm<br /> * Appears by convention in the names of mutating functions in Scheme<br /> * Frequently appears as a typo when inputting the string &quot;1&gt;1&lt;1&gt;1&lt;1&quot;</div>

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