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Re: How to convert String to char ? [message #12511 is a reply to message #12508]

Tue, 06 November 2007 21:15

mirek
Messages: 14291
Registered: November 2005

Ultimate Member

LiniX wrote on Tue, 06 November 2007 13:08

Thank you .

But library function in put is only char*,

How to change const char* to char* ? or can't ?

Thank you
Watchara Kangkun

You cannot convert String to char *.

The reason is that String interface is created so that efficient reference counted implementation is possible. That excludes this kind of conversion.

If you need to write to String content, you can use StringBuffer though.

String x = "Fun";
StringBuffer sb = x;
char *s = ~sb;
s[1] = 'a';
x = sb;

Note that transfers between StringBuffer and String are very fast, as long as the reference count (if any) is 1.

(Note2: Current String implementation uses reference counting only for long Strings).

Mirek

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[Message index]

		How to convert String to char ? By: LiniX on Tue, 06 November 2007 03:26
		Re: How to convert String to char ? By: andrei-catalin on Tue, 06 November 2007 06:07
		Re: How to convert String to char ? By: LiniX on Tue, 06 November 2007 19:08
		Re: How to convert String to char ? By: mirek on Tue, 06 November 2007 21:15
		Re: How to convert String to char ? By: LiniX on Thu, 08 November 2007 03:03

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