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posted by LaminatorX on Sunday March 16 2014, @03:28AM   Printer-friendly
from the premature-optimization-is-the-root-of-all-evil dept.

Subsentient writes:

"I've been writing C for quite some time, but I never followed good conventions I'm afraid, and I never payed much attention to the optimization tricks of the higher C programmers. Sure, I use const when I can, I use the pointer methods for manual string copying, I even use register for all the good that does with modern compilers, but now, I'm trying to write a C-string handling library for personal use, but I need speed, and I really don't want to use inline ASM. So, I am wondering, what would other Soylenters do to write efficient, pure, standards-compliant C?"

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  • (Score: 1) by TheGratefulNet on Sunday March 16 2014, @06:00AM

    by TheGratefulNet (659) on Sunday March 16 2014, @06:00AM (#17102)

    deduplication is great for disks, but if I have something in memory, I want it to be fast.

    it sounds 'elegant' for java to de-dupe strings but I'm not sure its going to be faster. I never pick elegant of speed, personally. elegant is for school. simple and obvious is much better for production code. and not having to search for instances of a string, just to de-dupe it, is not at all simple or fast.

    "It is now safe to switch off your computer."
  • (Score: 2) by Aighearach on Monday March 17 2014, @09:10PM

    by Aighearach (2621) on Monday March 17 2014, @09:10PM (#17799)

    As a Rubyist I challenge the idea that elegant is at odds with simple. The simpler code is generally more elegant.
    It is the more clever code that uses the excuse of being faster, not the more elegant. Elegant code is faster where the algorithm it uses is simpler. That is the essence of an elegant improvement; the code gets simpler and typically faster.