U++ framework: U++ Core » PROPOSAL: small / usefull Stream iface extension

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Re: PROPOSAL: small / usefull Stream iface extension [message #28012 is a reply to message #28009]

Fri, 13 August 2010 10:47

kohait00
Messages: 939
Registered: July 2009
Location: Germany

Experienced Contributor

another one...

	const byte * Peek(int size = 1)  { if(size <= 0 || (ptr + size > rdlim)) return NULL; return ptr; }
	byte *    PutReserve(int size)   { if(size <= 0 || (ptr + size > wrlim)) return NULL; byte * p = ptr; ptr+= size; return p; }

concerning Head():
if anyone really wants to break things its even possible with Peek then (brutal cast away const). those who really use these options are aware of it and use it with caution.

Peek shouldnt advance ptr. Peek only peeks Smile

advancing if needed should be done with Seek(GetPos() + size) afterwards, if desired.

advancing ptr in Head is a protection though, that same buffer section is not returned twice.. but the name is maybe irritating.

[Updated on: Fri, 13 August 2010 10:49]

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[Message index]

		PROPOSAL: small / usefull Stream iface extension By: kohait00 on Wed, 11 August 2010 23:39
		Re: PROPOSAL: small / usefull Stream iface extension By: kohait00 on Thu, 12 August 2010 00:14
		Re: PROPOSAL: small / usefull Stream iface extension By: kohait00 on Thu, 12 August 2010 08:36
		Re: PROPOSAL: small / usefull Stream iface extension By: mirek on Fri, 13 August 2010 09:57
		Re: PROPOSAL: small / usefull Stream iface extension By: kohait00 on Fri, 13 August 2010 10:07
		Re: PROPOSAL: small / usefull Stream iface extension By: kohait00 on Fri, 13 August 2010 10:23
		Re: PROPOSAL: small / usefull Stream iface extension By: mirek on Fri, 13 August 2010 10:30
		Re: PROPOSAL: small / usefull Stream iface extension By: mirek on Fri, 13 August 2010 10:46
		Re: PROPOSAL: small / usefull Stream iface extension By: kohait00 on Fri, 13 August 2010 10:47
		Re: PROPOSAL: small / usefull Stream iface extension By: kohait00 on Fri, 13 August 2010 10:50
		Re: PROPOSAL: small / usefull Stream iface extension By: mirek on Fri, 13 August 2010 10:29

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