March 2000
Intermediate to advanced
576 pages
18h 13m
English
Content preview from Delphi in a Nutshell
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Name
Chr Function
Syntax
function Chr(IntValue: Integer): AnsiChar; function Chr(IntValue: Integer): WideChar;
Description
The Chr function
converts an integer to its equivalent character, either
AnsiChar or WideChar, whichever
is called for. Chr is not a real function, and
calling Chr has no runtime impact. Delphi
automatically maps IntValue into the range needed
for the character type
(#0..#255 for
AnsiChar or
#0..#65535 for
WideChar).
Tips and Tricks
The compiler treats the character expressions
Chr(27),#27, and^[identically, so choose the style you find most readable. For control characters, the caret notation is often best, e.g.,^Mfor a carriage return. For special characters, a character constant usually works best, e.g.,#0to mark the end of aPCharstring. UseChrto convert variables.Calling
Chris identical to using a type cast, butChris more familiar to experienced Pascal programmers.
See Also
| AnsiChar Type, Char Type, Ord Function, WideChar Type |
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