From bf9897549dabfe002ebc8048e910706995383ae9 Mon Sep 17 00:00:00 2001 From: Yaakov Selkowitz Date: Fri, 5 Dec 2014 16:21:04 +0000 Subject: [PATCH] * libc/include/stdlib.h (__bsd_qsort_r): Declare. (qsort_r): Declare. * libc/search/Makefile.am (ELIX_2_SOURCES): Rename from ELIX_SOURCES. (ELIX_4_SOURCES): Define. Add bsd_qsort_r.c and qsort_r.c. (libsearch_la_SOURCES): Adapt accordingly. (lib_a_SOURCES): Adapt accordingly. (CHEWOUT_FILES): Add qsort_r.def. * libc/search/Makefile.in: Regenerate. * libc/search/bsd_qsort_r.c: New file. * libc/search/qsort.c: Update from FreeBSD HEAD. Adapt for both BSD and GNU qsort_r flavors. * libc/search/qsort_r.c: New file. --- newlib/ChangeLog | 15 +++++ newlib/libc/include/stdlib.h | 16 +++++ newlib/libc/search/Makefile.am | 28 +++++++-- newlib/libc/search/Makefile.in | 44 ++++++++++---- newlib/libc/search/bsd_qsort_r.c | 2 + newlib/libc/search/qsort.c | 100 ++++++++++++++++++++++--------- newlib/libc/search/qsort_r.c | 56 +++++++++++++++++ 7 files changed, 218 insertions(+), 43 deletions(-) create mode 100644 newlib/libc/search/bsd_qsort_r.c create mode 100644 newlib/libc/search/qsort_r.c diff --git a/newlib/ChangeLog b/newlib/ChangeLog index 71ff131a2..521732d86 100644 --- a/newlib/ChangeLog +++ b/newlib/ChangeLog @@ -1,3 +1,18 @@ +2014-12-05 Yaakov Selkowitz + + * libc/include/stdlib.h (__bsd_qsort_r): Declare. + (qsort_r): Declare. + * libc/search/Makefile.am (ELIX_2_SOURCES): Rename from ELIX_SOURCES. + (ELIX_4_SOURCES): Define. Add bsd_qsort_r.c and qsort_r.c. + (libsearch_la_SOURCES): Adapt accordingly. + (lib_a_SOURCES): Adapt accordingly. + (CHEWOUT_FILES): Add qsort_r.def. + * libc/search/Makefile.in: Regenerate. + * libc/search/bsd_qsort_r.c: New file. + * libc/search/qsort.c: Update from FreeBSD HEAD. Adapt for both BSD + and GNU qsort_r flavors. + * libc/search/qsort_r.c: New file. + 2014-12-04 Ulrich Weigand Corinna Vinschen diff --git a/newlib/libc/include/stdlib.h b/newlib/libc/include/stdlib.h index 9fc14fa3b..ffbb44349 100644 --- a/newlib/libc/include/stdlib.h +++ b/newlib/libc/include/stdlib.h @@ -248,6 +248,22 @@ int _EXFUN(_system_r,(struct _reent *, const char *)); _VOID _EXFUN(__eprintf,(const char *, const char *, unsigned int, const char *)); +/* There are two common qsort_r variants. If you request + _BSD_SOURCE, you get the BSD version; otherwise you get the GNU + version. We want that #undef qsort_r will still let you + invoke the underlying function, but that requires gcc support. */ +#ifdef _BSD_SOURCE +# ifdef __GNUC__ +_VOID _EXFUN(qsort_r,(_PTR __base, size_t __nmemb, size_t __size, _PTR __thunk, int (*_compar)(_PTR, const _PTR, const _PTR))) + __asm__ (__ASMNAME ("__bsd_qsort_r")); +# else +_VOID _EXFUN(__bsd_qsort_r,(_PTR __base, size_t __nmemb, size_t __size, _PTR __thunk, int (*_compar)(_PTR, const _PTR, const _PTR))); +# define qsort_r __bsd_qsort_r +# endif +#elif __GNU_VISIBLE +_VOID _EXFUN(qsort_r,(_PTR __base, size_t __nmemb, size_t __size, int (*_compar)(const _PTR, const _PTR, _PTR), _PTR __thunk)); +#endif + /* On platforms where long double equals double. */ #ifdef _HAVE_LONG_DOUBLE #if !defined(__STRICT_ANSI__) || \ diff --git a/newlib/libc/search/Makefile.am b/newlib/libc/search/Makefile.am index 27726fd4c..defb6bb9c 100644 --- a/newlib/libc/search/Makefile.am +++ b/newlib/libc/search/Makefile.am @@ -14,9 +14,9 @@ GENERAL_SOURCES = \ ## Following are EL/IX level 2 interfaces if ELIX_LEVEL_1 -ELIX_SOURCES = +ELIX_2_SOURCES = else -ELIX_SOURCES = \ +ELIX_2_SOURCES = \ hash.c \ hash_bigkey.c \ hash_buf.c \ @@ -32,15 +32,32 @@ ELIX_SOURCES = \ twalk.c endif +## Following are EL/IX level 4 interfaces +if ELIX_LEVEL_1 +ELIX_4_SOURCES = +else +if ELIX_LEVEL_2 +ELIX_4_SOURCES = +else +if ELIX_LEVEL_3 +ELIX_4_SOURCES = +else +ELIX_4_SOURCES = \ + bsd_qsort_r.c \ + qsort_r.c +endif !ELIX_LEVEL_3 +endif !ELIX_LEVEL_2 +endif !ELIX_LEVEL_1 + libsearch_la_LDFLAGS = -Xcompiler -nostdlib if USE_LIBTOOL noinst_LTLIBRARIES = libsearch.la -libsearch_la_SOURCES = $(GENERAL_SOURCES) $(ELIX_SOURCES) +libsearch_la_SOURCES = $(GENERAL_SOURCES) $(ELIX_2_SOURCES) $(ELIX_4_SOURCES) noinst_DATA = objectlist.awk.in else noinst_LIBRARIES = lib.a -lib_a_SOURCES = $(GENERAL_SOURCES) $(ELIX_SOURCES) +lib_a_SOURCES = $(GENERAL_SOURCES) $(ELIX_2_SOURCES) $(ELIX_4_SOURCES) lib_a_CFLAGS = $(AM_CFLAGS) noinst_DATA = endif # USE_LIBTOOL @@ -49,7 +66,8 @@ SUFFIXES = .def CHEWOUT_FILES = \ bsearch.def \ - qsort.def + qsort.def \ + qsort_r.def CHEW = ../../doc/makedoc -f $(srcdir)/../../doc/doc.str diff --git a/newlib/libc/search/Makefile.in b/newlib/libc/search/Makefile.in index 5aafc235a..755ec8adb 100644 --- a/newlib/libc/search/Makefile.in +++ b/newlib/libc/search/Makefile.in @@ -86,18 +86,22 @@ am__objects_1 = lib_a-bsearch.$(OBJEXT) lib_a-qsort.$(OBJEXT) @ELIX_LEVEL_1_FALSE@ lib_a-tfind.$(OBJEXT) \ @ELIX_LEVEL_1_FALSE@ lib_a-tsearch.$(OBJEXT) \ @ELIX_LEVEL_1_FALSE@ lib_a-twalk.$(OBJEXT) +@ELIX_LEVEL_1_FALSE@@ELIX_LEVEL_2_FALSE@@ELIX_LEVEL_3_FALSE@am__objects_3 = lib_a-bsd_qsort_r.$(OBJEXT) \ +@ELIX_LEVEL_1_FALSE@@ELIX_LEVEL_2_FALSE@@ELIX_LEVEL_3_FALSE@ lib_a-qsort_r.$(OBJEXT) @USE_LIBTOOL_FALSE@am_lib_a_OBJECTS = $(am__objects_1) \ -@USE_LIBTOOL_FALSE@ $(am__objects_2) +@USE_LIBTOOL_FALSE@ $(am__objects_2) $(am__objects_3) lib_a_OBJECTS = $(am_lib_a_OBJECTS) LTLIBRARIES = $(noinst_LTLIBRARIES) libsearch_la_LIBADD = -am__objects_3 = bsearch.lo qsort.lo -@ELIX_LEVEL_1_FALSE@am__objects_4 = hash.lo hash_bigkey.lo hash_buf.lo \ +am__objects_4 = bsearch.lo qsort.lo +@ELIX_LEVEL_1_FALSE@am__objects_5 = hash.lo hash_bigkey.lo hash_buf.lo \ @ELIX_LEVEL_1_FALSE@ hash_func.lo hash_log2.lo hash_page.lo \ @ELIX_LEVEL_1_FALSE@ hcreate.lo hcreate_r.lo tdelete.lo \ @ELIX_LEVEL_1_FALSE@ tdestroy.lo tfind.lo tsearch.lo twalk.lo -@USE_LIBTOOL_TRUE@am_libsearch_la_OBJECTS = $(am__objects_3) \ -@USE_LIBTOOL_TRUE@ $(am__objects_4) +@ELIX_LEVEL_1_FALSE@@ELIX_LEVEL_2_FALSE@@ELIX_LEVEL_3_FALSE@am__objects_6 = bsd_qsort_r.lo \ +@ELIX_LEVEL_1_FALSE@@ELIX_LEVEL_2_FALSE@@ELIX_LEVEL_3_FALSE@ qsort_r.lo +@USE_LIBTOOL_TRUE@am_libsearch_la_OBJECTS = $(am__objects_4) \ +@USE_LIBTOOL_TRUE@ $(am__objects_5) $(am__objects_6) libsearch_la_OBJECTS = $(am_libsearch_la_OBJECTS) libsearch_la_LINK = $(LIBTOOL) --tag=CC $(AM_LIBTOOLFLAGS) \ $(LIBTOOLFLAGS) --mode=link $(CCLD) $(AM_CFLAGS) $(CFLAGS) \ @@ -278,7 +282,7 @@ GENERAL_SOURCES = \ page.h \ qsort.c -@ELIX_LEVEL_1_FALSE@ELIX_SOURCES = \ +@ELIX_LEVEL_1_FALSE@ELIX_2_SOURCES = \ @ELIX_LEVEL_1_FALSE@ hash.c \ @ELIX_LEVEL_1_FALSE@ hash_bigkey.c \ @ELIX_LEVEL_1_FALSE@ hash_buf.c \ @@ -293,19 +297,27 @@ GENERAL_SOURCES = \ @ELIX_LEVEL_1_FALSE@ tsearch.c \ @ELIX_LEVEL_1_FALSE@ twalk.c -@ELIX_LEVEL_1_TRUE@ELIX_SOURCES = +@ELIX_LEVEL_1_TRUE@ELIX_2_SOURCES = +@ELIX_LEVEL_1_FALSE@@ELIX_LEVEL_2_FALSE@@ELIX_LEVEL_3_FALSE@ELIX_4_SOURCES = \ +@ELIX_LEVEL_1_FALSE@@ELIX_LEVEL_2_FALSE@@ELIX_LEVEL_3_FALSE@ bsd_qsort_r.c \ +@ELIX_LEVEL_1_FALSE@@ELIX_LEVEL_2_FALSE@@ELIX_LEVEL_3_FALSE@ qsort_r.c + +@ELIX_LEVEL_1_FALSE@@ELIX_LEVEL_2_FALSE@@ELIX_LEVEL_3_TRUE@ELIX_4_SOURCES = +@ELIX_LEVEL_1_FALSE@@ELIX_LEVEL_2_TRUE@ELIX_4_SOURCES = +@ELIX_LEVEL_1_TRUE@ELIX_4_SOURCES = libsearch_la_LDFLAGS = -Xcompiler -nostdlib @USE_LIBTOOL_TRUE@noinst_LTLIBRARIES = libsearch.la -@USE_LIBTOOL_TRUE@libsearch_la_SOURCES = $(GENERAL_SOURCES) $(ELIX_SOURCES) +@USE_LIBTOOL_TRUE@libsearch_la_SOURCES = $(GENERAL_SOURCES) $(ELIX_2_SOURCES) $(ELIX_4_SOURCES) @USE_LIBTOOL_FALSE@noinst_DATA = @USE_LIBTOOL_TRUE@noinst_DATA = objectlist.awk.in @USE_LIBTOOL_FALSE@noinst_LIBRARIES = lib.a -@USE_LIBTOOL_FALSE@lib_a_SOURCES = $(GENERAL_SOURCES) $(ELIX_SOURCES) +@USE_LIBTOOL_FALSE@lib_a_SOURCES = $(GENERAL_SOURCES) $(ELIX_2_SOURCES) $(ELIX_4_SOURCES) @USE_LIBTOOL_FALSE@lib_a_CFLAGS = $(AM_CFLAGS) SUFFIXES = .def CHEWOUT_FILES = \ bsearch.def \ - qsort.def + qsort.def \ + qsort_r.def CHEW = ../../doc/makedoc -f $(srcdir)/../../doc/doc.str TARGETDOC = ../tmp.texi @@ -469,6 +481,18 @@ lib_a-twalk.o: twalk.c lib_a-twalk.obj: twalk.c $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-twalk.obj `if test -f 'twalk.c'; then $(CYGPATH_W) 'twalk.c'; else $(CYGPATH_W) '$(srcdir)/twalk.c'; fi` +lib_a-bsd_qsort_r.o: bsd_qsort_r.c + $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-bsd_qsort_r.o `test -f 'bsd_qsort_r.c' || echo '$(srcdir)/'`bsd_qsort_r.c + +lib_a-bsd_qsort_r.obj: bsd_qsort_r.c + $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-bsd_qsort_r.obj `if test -f 'bsd_qsort_r.c'; then $(CYGPATH_W) 'bsd_qsort_r.c'; else $(CYGPATH_W) '$(srcdir)/bsd_qsort_r.c'; fi` + +lib_a-qsort_r.o: qsort_r.c + $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-qsort_r.o `test -f 'qsort_r.c' || echo '$(srcdir)/'`qsort_r.c + +lib_a-qsort_r.obj: qsort_r.c + $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-qsort_r.obj `if test -f 'qsort_r.c'; then $(CYGPATH_W) 'qsort_r.c'; else $(CYGPATH_W) '$(srcdir)/qsort_r.c'; fi` + mostlyclean-libtool: -rm -f *.lo diff --git a/newlib/libc/search/bsd_qsort_r.c b/newlib/libc/search/bsd_qsort_r.c new file mode 100644 index 000000000..f4a3757b0 --- /dev/null +++ b/newlib/libc/search/bsd_qsort_r.c @@ -0,0 +1,2 @@ +#define I_AM_QSORT_R +#include "qsort.c" diff --git a/newlib/libc/search/qsort.c b/newlib/libc/search/qsort.c index d47f47099..bf6285f5e 100644 --- a/newlib/libc/search/qsort.c +++ b/newlib/libc/search/qsort.c @@ -53,11 +53,7 @@ PORTABILITY * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the University of - * California, Berkeley and its contributors. - * 4. Neither the name of the University nor the names of its contributors + * 3. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * @@ -75,13 +71,21 @@ PORTABILITY */ #include <_ansi.h> +#include #include #ifndef __GNUC__ #define inline #endif -static inline char *med3 _PARAMS((char *, char *, char *, int (*)())); +#if defined(I_AM_QSORT_R) +typedef int cmp_t(void *, const void *, const void *); +#elif defined(I_AM_GNU_QSORT_R) +typedef int cmp_t(const void *, const void *, void *); +#else +typedef int cmp_t(const void *, const void *); +#endif +static inline char *med3 _PARAMS((char *, char *, char *, cmp_t *, void *)); static inline void swapfunc _PARAMS((char *, char *, int, int)); #define min(a, b) (a) < (b) ? a : b @@ -91,10 +95,10 @@ static inline void swapfunc _PARAMS((char *, char *, int, int)); */ #define swapcode(TYPE, parmi, parmj, n) { \ long i = (n) / sizeof (TYPE); \ - register TYPE *pi = (TYPE *) (parmi); \ - register TYPE *pj = (TYPE *) (parmj); \ + TYPE *pi = (TYPE *) (parmi); \ + TYPE *pj = (TYPE *) (parmj); \ do { \ - register TYPE t = *pi; \ + TYPE t = *pi; \ *pi++ = *pj; \ *pj++ = t; \ } while (--i > 0); \ @@ -110,7 +114,7 @@ _DEFUN(swapfunc, (a, b, n, swaptype), int n _AND int swaptype) { - if(swaptype <= 1) + if(swaptype <= 1) swapcode(long, a, b, n) else swapcode(char, a, b, n) @@ -126,33 +130,67 @@ _DEFUN(swapfunc, (a, b, n, swaptype), #define vecswap(a, b, n) if ((n) > 0) swapfunc(a, b, n, swaptype) +#if defined(I_AM_QSORT_R) +#define CMP(t, x, y) (cmp((t), (x), (y))) +#elif defined(I_AM_GNU_QSORT_R) +#define CMP(t, x, y) (cmp((x), (y), (t))) +#else +#define CMP(t, x, y) (cmp((x), (y))) +#endif + static inline char * -_DEFUN(med3, (a, b, c, cmp), +_DEFUN(med3, (a, b, c, cmp, thunk), char *a _AND char *b _AND char *c _AND - int (*cmp)()) + cmp_t *cmp _AND + void *thunk +#if !defined(I_AM_QSORT_R) && !defined(I_AM_GNU_QSORT_R) +__unused +#endif +) { - return cmp(a, b) < 0 ? - (cmp(b, c) < 0 ? b : (cmp(a, c) < 0 ? c : a )) - :(cmp(b, c) > 0 ? b : (cmp(a, c) < 0 ? a : c )); + return CMP(thunk, a, b) < 0 ? + (CMP(thunk, b, c) < 0 ? b : (CMP(thunk, a, c) < 0 ? c : a )) + :(CMP(thunk, b, c) > 0 ? b : (CMP(thunk, a, c) < 0 ? a : c )); } +#if defined(I_AM_QSORT_R) +void +_DEFUN(__bsd_qsort_r, (a, n, es, thunk, cmp), + void *a _AND + size_t n _AND + size_t es _AND + void *thunk _AND + cmp_t *cmp) +#elif defined(I_AM_GNU_QSORT_R) +void +_DEFUN(qsort_r, (a, n, es, cmp, thunk), + void *a _AND + size_t n _AND + size_t es _AND + cmp_t *cmp _AND + void *thunk) +#else +#define thunk NULL void _DEFUN(qsort, (a, n, es, cmp), void *a _AND size_t n _AND size_t es _AND - int (*cmp)()) + cmp_t *cmp) +#endif { char *pa, *pb, *pc, *pd, *pl, *pm, *pn; - int d, r, swaptype, swap_cnt; + size_t d, r; + int cmp_result; + int swaptype, swap_cnt; loop: SWAPINIT(a, es); swap_cnt = 0; if (n < 7) { for (pm = (char *) a + es; pm < (char *) a + n * es; pm += es) - for (pl = pm; pl > (char *) a && cmp(pl - es, pl) > 0; + for (pl = pm; pl > (char *) a && CMP(thunk, pl - es, pl) > 0; pl -= es) swap(pl, pl - es); return; @@ -163,27 +201,27 @@ loop: SWAPINIT(a, es); pn = (char *) a + (n - 1) * es; if (n > 40) { d = (n / 8) * es; - pl = med3(pl, pl + d, pl + 2 * d, cmp); - pm = med3(pm - d, pm, pm + d, cmp); - pn = med3(pn - 2 * d, pn - d, pn, cmp); + pl = med3(pl, pl + d, pl + 2 * d, cmp, thunk); + pm = med3(pm - d, pm, pm + d, cmp, thunk); + pn = med3(pn - 2 * d, pn - d, pn, cmp, thunk); } - pm = med3(pl, pm, pn, cmp); + pm = med3(pl, pm, pn, cmp, thunk); } swap(a, pm); pa = pb = (char *) a + es; pc = pd = (char *) a + (n - 1) * es; for (;;) { - while (pb <= pc && (r = cmp(pb, a)) <= 0) { - if (r == 0) { + while (pb <= pc && (cmp_result = CMP(thunk, pb, a)) <= 0) { + if (cmp_result == 0) { swap_cnt = 1; swap(pa, pb); pa += es; } pb += es; } - while (pb <= pc && (r = cmp(pc, a)) >= 0) { - if (r == 0) { + while (pb <= pc && (cmp_result = CMP(thunk, pc, a)) >= 0) { + if (cmp_result == 0) { swap_cnt = 1; swap(pc, pd); pd -= es; @@ -199,7 +237,7 @@ loop: SWAPINIT(a, es); } if (swap_cnt == 0) { /* Switch to insertion sort */ for (pm = (char *) a + es; pm < (char *) a + n * es; pm += es) - for (pl = pm; pl > (char *) a && cmp(pl - es, pl) > 0; + for (pl = pm; pl > (char *) a && CMP(thunk, pl - es, pl) > 0; pl -= es) swap(pl, pl - es); return; @@ -211,8 +249,14 @@ loop: SWAPINIT(a, es); r = min(pd - pc, pn - pd - es); vecswap(pb, pn - r, r); if ((r = pb - pa) > es) +#if defined(I_AM_QSORT_R) + __bsd_qsort_r(a, r / es, es, thunk, cmp); +#elif defined(I_AM_GNU_QSORT_R) + qsort_r(a, r / es, es, cmp, thunk); +#else qsort(a, r / es, es, cmp); - if ((r = pd - pc) > es) { +#endif + if ((r = pd - pc) > es) { /* Iterate rather than recurse to save stack space */ a = pn - r; n = r / es; diff --git a/newlib/libc/search/qsort_r.c b/newlib/libc/search/qsort_r.c new file mode 100644 index 000000000..0567be71e --- /dev/null +++ b/newlib/libc/search/qsort_r.c @@ -0,0 +1,56 @@ +/* +FUNCTION +<>---sort an array + +INDEX + qsort_r + +ANSI_SYNOPSIS + #define _BSD_SOURCE + #include + void qsort_r(void *<[base]>, size_t <[nmemb]>, size_t <[size]>, + void *<[thunk]>, + int (*<[compar]>)(void*, const void *, const void *)); + + #define _GNU_SOURCE + #include + void qsort_r(void *<[base]>, size_t <[nmemb]>, size_t <[size]>, + int (*<[compar]>)(const void *, const void *, void *), + void *<[thunk]>); + +TRAD_SYNOPSIS + #include + qsort_r(<[base]>, <[nmemb]>, <[size]>, <[compar]>, <[thumb]>) + char *<[base]>; + size_t <[nmemb]>; + size_t <[size]>; + int (*<[compar]>)(); + char *<[thumb]>; + +DESCRIPTION +<> sorts an array (beginning at <[base]>) of <[nmemb]> objects. +<[size]> describes the size of each element of the array. + +You must supply a pointer to a comparison function, using the argument +shown as <[compar]>. (This permits sorting objects of unknown +properties.) There are two forms of this function, in each the +comparison function is defined to accept three arguments, but in a +different order. Two are pointers to an element of the array starting at +<[base]>, and another being an arbitrary pointer <[thunk]>. The +result of <<(*<[compar]>)>> must be negative if the first argument is +less than the second, zero if the two arguments match, and positive if +the first argument is greater than the second (where ``less than'' and +``greater than'' refer to whatever arbitrary ordering is appropriate). + +The array is sorted in place; that is, when <> returns, the +array elements beginning at <[base]> have been reordered. + +RETURNS +<> does not return a result. + +PORTABILITY +<>, in various forms, appears in both BSD and glibc. +*/ + +#define I_AM_GNU_QSORT_R +#include "qsort.c"