Difference between revisions of "Dollar sign"
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| − | {{ | + | |
| + | {{Dollar sign}} | ||
<div style="float:left; margin: 0 25px 20px 0; padding:40px; font-size:500%; font-family: Georgia; background-color: #f9f9f9; border: 2px solid #777777;">$</div> | <div style="float:left; margin: 0 25px 20px 0; padding:40px; font-size:500%; font-family: Georgia; background-color: #f9f9f9; border: 2px solid #777777;">$</div> | ||
| + | In [[ASCII]], the character code decimal <syntaxhighlight lang="pascal" inline>36</syntaxhighlight> (or hexadecimal <syntaxhighlight lang="pascal" inline>24</syntaxhighlight>) is defined to be <syntaxhighlight lang="pascal" inline>$</syntaxhighlight> (dollar sign). | ||
| − | + | == Pascal == | |
| + | As a <abbr title="Pascal extension for scientific computing">PXSC</abbr>-extension, the symbol <syntaxhighlight lang="pascal" inline>$</syntaxhighlight>, pronounced “dollar sign”, is used to indicate a [[Hexadecimal|hexadecimal]] base. | ||
| + | <br style="clear:both" /> | ||
| + | <syntaxhighlight lang="pascal"> | ||
| + | program dollarSignDemo(input, output, stderr); | ||
| − | + | var | |
| + | i: longint; | ||
| + | begin | ||
| + | // '$' as well as '0x' are recognized by readLn | ||
| + | // as hexadecimal base prefixes | ||
| + | readStr('$24', i); | ||
| + | writeLn(i); // will print 36 | ||
| + | writeLn(-$24); // will print -36 | ||
| + | end. | ||
| + | </syntaxhighlight> | ||
| + | An optional sign is written in front the base indicator. | ||
| − | + | == other appearances == | |
| + | For [[FPC]] and [[Delphi]] [[Compiler|compilers]], the dollar sign appears in [[Compiler directive|compiler directives]] of the form <syntaxhighlight lang="pascal" inline>{$directive}</syntaxhighlight>. | ||
| − | + | {{Symbols}} | |
| − | |||
Revision as of 23:57, 3 February 2021
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In ASCII, the character code decimal 36 (or hexadecimal 24) is defined to be $ (dollar sign).
Pascal
As a PXSC-extension, the symbol $, pronounced “dollar sign”, is used to indicate a hexadecimal base.
program dollarSignDemo(input, output, stderr);
var
i: longint;
begin
// '$' as well as '0x' are recognized by readLn
// as hexadecimal base prefixes
readStr('$24', i);
writeLn(i); // will print 36
writeLn(-$24); // will print -36
end.
An optional sign is written in front the base indicator.
other appearances
For FPC and Delphi compilers, the dollar sign appears in compiler directives of the form {$directive}.
| single characters |
|
| character pairs |
|
