2022-08-13 15:32:34 +00:00
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#ifndef COSMOPOLITAN_LIBC_ALG_ALG_H_
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#define COSMOPOLITAN_LIBC_ALG_ALG_H_
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#if !(__ASSEMBLER__ + __LINKER__ + 0)
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COSMOPOLITAN_C_START_
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void *bsearch(const void *, const void *, size_t, size_t,
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Use a better sorting algorithm
This change changes qsort() to use the same code as NetBSD and MacOS
because it goes 6x faster than Musl's SmoothSort function. Smoothsort
can still be used if you need something that's provenly linearithmic.
This change also improves GNU Make performance on whole by 7 percent!
netbsd nearly l: 70,196c 22,673ns m: 68,428c 22,102ns
musl nearly l: 53,844c 17,391ns m: 58,726c 18,968ns
unixv6 nearly l: 65,885c 21,280ns m: 63,082c 20,375ns
netbsd reverse l: 120,290c 38,853ns m: 122,619c 39,605ns
musl reverse l: 801,826c 258,985ns m: 794,689c 256,680ns
unixv6 reverse l: 58,977c 19,049ns m: 59,764c 19,303ns
netbsd random l: 146,745c 47,398ns m: 145,782c 47,087ns
musl random l: 855,804c 276,420ns m: 850,912c 274,840ns
unixv6 random l: 214,325c 69,226ns m: 213,906c 69,090ns
netbsd 2n l: 77,299c 24,967ns m: 76,773c 24,797ns
musl 2n l: 818,012c 264,213ns m: 818,282c 264,301ns
unixv6 2n l: 3,967,009c 1,281,322ns m: 3,941,792c 1,273,177ns
https://justine.lol/dox/sort.pdf
2022-09-06 18:04:29 +00:00
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int (*)(const void *, const void *))
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2022-08-13 15:32:34 +00:00
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paramsnonnull() dontthrow nosideeffect;
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void *bsearch_r(const void *, const void *, size_t, size_t,
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Use a better sorting algorithm
This change changes qsort() to use the same code as NetBSD and MacOS
because it goes 6x faster than Musl's SmoothSort function. Smoothsort
can still be used if you need something that's provenly linearithmic.
This change also improves GNU Make performance on whole by 7 percent!
netbsd nearly l: 70,196c 22,673ns m: 68,428c 22,102ns
musl nearly l: 53,844c 17,391ns m: 58,726c 18,968ns
unixv6 nearly l: 65,885c 21,280ns m: 63,082c 20,375ns
netbsd reverse l: 120,290c 38,853ns m: 122,619c 39,605ns
musl reverse l: 801,826c 258,985ns m: 794,689c 256,680ns
unixv6 reverse l: 58,977c 19,049ns m: 59,764c 19,303ns
netbsd random l: 146,745c 47,398ns m: 145,782c 47,087ns
musl random l: 855,804c 276,420ns m: 850,912c 274,840ns
unixv6 random l: 214,325c 69,226ns m: 213,906c 69,090ns
netbsd 2n l: 77,299c 24,967ns m: 76,773c 24,797ns
musl 2n l: 818,012c 264,213ns m: 818,282c 264,301ns
unixv6 2n l: 3,967,009c 1,281,322ns m: 3,941,792c 1,273,177ns
https://justine.lol/dox/sort.pdf
2022-09-06 18:04:29 +00:00
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int (*)(const void *, const void *, void *), void *)
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2022-08-13 15:32:34 +00:00
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paramsnonnull((1, 2, 5)) dontthrow nosideeffect;
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void djbsort(int32_t *, size_t);
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2022-09-07 00:52:26 +00:00
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void qsort3(void *, size_t, size_t, int (*)(const void *, const void *))
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paramsnonnull();
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2022-08-13 15:32:34 +00:00
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void qsort(void *, size_t, size_t, int (*)(const void *, const void *))
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paramsnonnull();
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void qsort_r(void *, size_t, size_t,
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Use a better sorting algorithm
This change changes qsort() to use the same code as NetBSD and MacOS
because it goes 6x faster than Musl's SmoothSort function. Smoothsort
can still be used if you need something that's provenly linearithmic.
This change also improves GNU Make performance on whole by 7 percent!
netbsd nearly l: 70,196c 22,673ns m: 68,428c 22,102ns
musl nearly l: 53,844c 17,391ns m: 58,726c 18,968ns
unixv6 nearly l: 65,885c 21,280ns m: 63,082c 20,375ns
netbsd reverse l: 120,290c 38,853ns m: 122,619c 39,605ns
musl reverse l: 801,826c 258,985ns m: 794,689c 256,680ns
unixv6 reverse l: 58,977c 19,049ns m: 59,764c 19,303ns
netbsd random l: 146,745c 47,398ns m: 145,782c 47,087ns
musl random l: 855,804c 276,420ns m: 850,912c 274,840ns
unixv6 random l: 214,325c 69,226ns m: 213,906c 69,090ns
netbsd 2n l: 77,299c 24,967ns m: 76,773c 24,797ns
musl 2n l: 818,012c 264,213ns m: 818,282c 264,301ns
unixv6 2n l: 3,967,009c 1,281,322ns m: 3,941,792c 1,273,177ns
https://justine.lol/dox/sort.pdf
2022-09-06 18:04:29 +00:00
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int (*)(const void *, const void *, void *), void *)
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2022-08-13 15:32:34 +00:00
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paramsnonnull((1, 4));
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Use a better sorting algorithm
This change changes qsort() to use the same code as NetBSD and MacOS
because it goes 6x faster than Musl's SmoothSort function. Smoothsort
can still be used if you need something that's provenly linearithmic.
This change also improves GNU Make performance on whole by 7 percent!
netbsd nearly l: 70,196c 22,673ns m: 68,428c 22,102ns
musl nearly l: 53,844c 17,391ns m: 58,726c 18,968ns
unixv6 nearly l: 65,885c 21,280ns m: 63,082c 20,375ns
netbsd reverse l: 120,290c 38,853ns m: 122,619c 39,605ns
musl reverse l: 801,826c 258,985ns m: 794,689c 256,680ns
unixv6 reverse l: 58,977c 19,049ns m: 59,764c 19,303ns
netbsd random l: 146,745c 47,398ns m: 145,782c 47,087ns
musl random l: 855,804c 276,420ns m: 850,912c 274,840ns
unixv6 random l: 214,325c 69,226ns m: 213,906c 69,090ns
netbsd 2n l: 77,299c 24,967ns m: 76,773c 24,797ns
musl 2n l: 818,012c 264,213ns m: 818,282c 264,301ns
unixv6 2n l: 3,967,009c 1,281,322ns m: 3,941,792c 1,273,177ns
https://justine.lol/dox/sort.pdf
2022-09-06 18:04:29 +00:00
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void smoothsort(void *, size_t, size_t, int (*)(const void *, const void *));
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void smoothsort_r(void *, size_t, size_t,
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int (*)(const void *, const void *, void *), void *);
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2022-09-07 00:52:26 +00:00
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int heapsort(void *, size_t, size_t, int (*)(const void *, const void *));
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int heapsort_r(void *, size_t, size_t,
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int (*)(const void *, const void *, void *), void *);
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int mergesort(void *, size_t, size_t, int (*)(const void *, const void *));
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int mergesort_r(void *, size_t, size_t,
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int (*)(const void *, const void *, void *), void *);
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2022-09-13 06:10:38 +00:00
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int _tarjan(int, const int (*)[2], int, int[], int[], int *)
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2022-08-13 15:32:34 +00:00
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paramsnonnull((2, 4)) nocallback dontthrow;
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#define __algalloc returnspointerwithnoaliases dontthrow nocallback dontdiscard
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2022-09-13 06:10:38 +00:00
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char *_replacestr(const char *, const char *, const char *)
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2022-08-13 15:32:34 +00:00
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paramsnonnull() __algalloc;
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COSMOPOLITAN_C_END_
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#endif /* !(__ASSEMBLER__ + __LINKER__ + 0) */
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#endif /* COSMOPOLITAN_LIBC_ALG_ALG_H_ */
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