JCL Help:PCharOrNil

 JCL Help: PCharOrNil Function

BaseServices.Pointermanipulation

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Summary

Explicit replacement for PChar typecast.

Pascal

 function PCharOrNil(const S: string): PChar;

Parameters

Parameters	Description
const S: string	The string for which to return a PChar.

Return Value

If the specified string is empty the funtion returns nil, otherwise it returns a pointer to the first character of the string.

Description

PCharOrNil returns a pointer to the first character of the specified string or nil if the string is empty. This is identical to simply typecasting to PChar except that this function makes the behaviour of the typecast explicit (and independent of the compiler).

See Also

PWideCharOrNil

About

Unit

JclSysUtils

Donator

Petr Vones

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