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Author Topic: [SOLVED] Oxygen's Equivalents to C, Pls?  (Read 12374 times)

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Charles Pegge

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Re: [SOLVED] Oxygen's Equivalents to C, Pls?
« Reply #45 on: October 05, 2014, 03:55:32 PM »
Mike, do mallocs carry any length encoding, and are there any performance issues in using them as liberally as olestrings? I would be happy to switch if there were no significant disadvantages.
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Charles Pegge

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Re: [SOLVED] Oxygen's Equivalents to C, Pls?
« Reply #46 on: October 05, 2014, 04:05:22 PM »
Mike,

I am commited to a dual sized signed integer. One type fits nearly all, and massively simplifies API declarations. Use casting where necessary.
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Mike Lobanovsky

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Re: [SOLVED] Oxygen's Equivalents to C, Pls?
« Reply #47 on: October 05, 2014, 04:10:27 PM »
Quote from: Charles Pegge on October 05, 2014, 03:55:32 PM
do mallocs carry any length encoding
None whatsoever.

Quote
are there any performance issues
None whatsoever.

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using them as liberally as olestrings?
No liberty. You create them, you manage them, you free them. You are responsible for every little thing that happens to the chunks you malloced.

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no significant disadvantages
None whatsoever.

One significant advantage: the addresses that msvcrt.dll mallocs are guaranteed by all the MS might to be aligned on a 4-byte boundary. Noone has ever been able to prove the contrary.

Another significant advantage: no restrictions on allocation sizes within the available memory.
« Last Edit: October 05, 2014, 05:06:14 PM by Mike Lobanovsky »
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Mike Lobanovsky

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Re: [SOLVED] Oxygen's Equivalents to C, Pls?
« Reply #48 on: October 05, 2014, 04:11:19 PM »
Quote from: Charles Pegge on October 05, 2014, 04:05:22 PM
Mike,

I am commited to a dual sized signed integer. One type fits nearly all, and massively simplifies API declarations. Use casting where necessary.

Understood.
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Charles Pegge

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Re: [SOLVED] Oxygen's Equivalents to C, Pls?
« Reply #49 on: October 05, 2014, 04:22:33 PM »
Many thanks Mike,

Must fly now :)

Note the image URL! .../02carpet.jpg



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Mike Lobanovsky

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Re: [SOLVED] Oxygen's Equivalents to C, Pls?
« Reply #50 on: October 05, 2014, 05:06:43 PM »
Have a nice flight, Charles. :)
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Charles Pegge

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Re: [SOLVED] Oxygen's Equivalents to C, Pls?
« Reply #51 on: October 05, 2014, 11:21:16 PM »
Mike,

Would you recommend s HeapAlloc based system?
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