Messages in this thread | | | From | Andreas Schwab <> | Subject | Re: [Patch] Always include <linux/types.h> | Date | Wed, 05 Nov 2008 20:48:36 +0100 |
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Jörn Engel <joern@logfs.org> writes:
> My hope was actually to speed up compilation. If the average c file > includes 10 headers, on types.h will get included by most of them, > possibly multiple times. Each run after the first still has to parse > the whole file, just to drop everything between #ifndef _LINUX_TYPES_H > and #endif.
Actually GCC is smart enought to note the bracketing and avoid even looking at it a second time.
Andreas.
-- Andreas Schwab, SuSE Labs, schwab@suse.de SuSE Linux Products GmbH, Maxfeldstraße 5, 90409 Nürnberg, Germany PGP key fingerprint = 58CA 54C7 6D53 942B 1756 01D3 44D5 214B 8276 4ED5 "And now for something completely different." -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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