diff options
Diffstat (limited to 'nuttx/lib/stdlib')
| -rw-r--r-- | nuttx/lib/stdlib/Make.defs | 44 | ||||
| -rw-r--r-- | nuttx/lib/stdlib/lib_abort.c | 121 | ||||
| -rw-r--r-- | nuttx/lib/stdlib/lib_abs.c | 54 | ||||
| -rw-r--r-- | nuttx/lib/stdlib/lib_imaxabs.c | 54 | ||||
| -rw-r--r-- | nuttx/lib/stdlib/lib_labs.c | 54 | ||||
| -rw-r--r-- | nuttx/lib/stdlib/lib_llabs.c | 57 | ||||
| -rw-r--r-- | nuttx/lib/stdlib/lib_qsort.c | 238 | ||||
| -rw-r--r-- | nuttx/lib/stdlib/lib_rand.c | 220 |
8 files changed, 0 insertions, 842 deletions
diff --git a/nuttx/lib/stdlib/Make.defs b/nuttx/lib/stdlib/Make.defs deleted file mode 100644 index 76e285808..000000000 --- a/nuttx/lib/stdlib/Make.defs +++ /dev/null @@ -1,44 +0,0 @@ -############################################################################ -# lib/stdlib/Make.defs -# -# Copyright (C) 2012 Gregory Nutt. All rights reserved. -# Author: Gregory Nutt <gnutt@nuttx.org> -# -# Redistribution and use in source and binary forms, with or without -# modification, are permitted provided that the following conditions -# are met: -# -# 1. Redistributions of source code must retain the above copyright -# notice, this list of conditions and the following disclaimer. -# 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. Neither the name NuttX nor the names of its contributors may be -# used to endorse or promote products derived from this software -# without specific prior written permission. -# -# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS -# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT -# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS -# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE -# COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, -# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, -# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS -# OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED -# AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT -# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN -# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE -# POSSIBILITY OF SUCH DAMAGE. -# -############################################################################ - -# Add the stdlib C files to the build - -CSRCS += lib_abs.c lib_abort.c lib_imaxabs.c lib_labs.c lib_llabs.c \ - lib_rand.c lib_qsort.c - -# Add the stdlib directory to the build - -DEPPATH += --dep-path stdlib -VPATH += :stdlib diff --git a/nuttx/lib/stdlib/lib_abort.c b/nuttx/lib/stdlib/lib_abort.c deleted file mode 100644 index 84b600950..000000000 --- a/nuttx/lib/stdlib/lib_abort.c +++ /dev/null @@ -1,121 +0,0 @@ -/************************************************************************ - * lib/stdlib/lib_abort.c - * - * Copyright (C) 2007, 2009, 2011-2012 Gregory Nutt. All rights reserved. - * Author: Gregory Nutt <gnutt@nuttx.org> - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 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. Neither the name NuttX nor the names of its contributors may be - * used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS - * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE - * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, - * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, - * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS - * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED - * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN - * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGE. - * - ************************************************************************/ - -/************************************************************************ - * Included Files - ************************************************************************/ - -#include <nuttx/config.h> - -#include <stdlib.h> -#include <pthread.h> - -/************************************************************************ - * Pre-processor Definitions - ************************************************************************/ - -/************************************************************************ - * Private Type Declarations - ************************************************************************/ - -/************************************************************************ - * Global Variables - ************************************************************************/ - -/************************************************************************ - * Private Variables - ************************************************************************/ - -/************************************************************************ - * Private Function Prototypes - ************************************************************************/ - -/************************************************************************ - * Private Functions - ************************************************************************/ - -/************************************************************************ - * Public Functions - ************************************************************************/ - -/************************************************************************ - * Name: Abort - * - * Description: - * The abort() first unblocks the SIGABRT signal, and then raises that - * signal for the calling process. This results in the abnormal - * termination of the process unless the SIGABRT signal is caught and - * the signal handler does not return. - * - * If the abort() function causes process termination, all open - * streams are closed and flushed. - * - * If the SIGABRT signal is ignored, or caught by a handler that - * returns, the abort() function will still terminate the process. - * It does this by restoring the default disposition for SIGABRT and - * then raising the signal for a second time. - * - * Input parameters: - * None - * - * Returned Value: - * This function does not return, - * - ************************************************************************/ - -void abort(void) -{ - /* NuttX does not support standard signal functionality (like the - * behavior of the SIGABRT signal). So no attempt is made to provide - * a conformant version of abort() at this time. This version does not - * signal the calling thread all. - * - * Note that pthread_exit() is called instead of exit(). That is because - * we do no know if abort was called from a pthread or a normal thread - * (we could find out, of course). If abort() is called from a non-pthread, - * then pthread_exit() should fail and fall back to call exit() anyway. - * - * If exit() is called (either below or via pthread_exit()), then exit() - * will flush and close all open files and terminate the thread. If this - * function was called from a pthread, then pthread_exit() will complete - * any joins, but will not flush or close any streams. - */ - -#ifdef CONFIG_DISABLE_PTHREAD - exit(EXIT_FAILURE); -#else - pthread_exit(NULL); -#endif -} diff --git a/nuttx/lib/stdlib/lib_abs.c b/nuttx/lib/stdlib/lib_abs.c deleted file mode 100644 index 1a0c1671c..000000000 --- a/nuttx/lib/stdlib/lib_abs.c +++ /dev/null @@ -1,54 +0,0 @@ -/************************************************************************ - * lib/stdlib/lib_abs.c - * - * Copyright (C) 2010-2011 Gregory Nutt. All rights reserved. - * Author: Gregory Nutt <gnutt@nuttx.org> - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 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. Neither the name NuttX nor the names of its contributors may be - * used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS - * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE - * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, - * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, - * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS - * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED - * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN - * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGE. - * - ************************************************************************/ - -/************************************************************************ - * Included Files - ************************************************************************/ - -#include <nuttx/config.h> -#include <stdlib.h> - -/************************************************************************ - * Global Functions - ************************************************************************/ - -int abs(int j) -{ - if (j < 0) - { - j = -j; - } - return j; -} diff --git a/nuttx/lib/stdlib/lib_imaxabs.c b/nuttx/lib/stdlib/lib_imaxabs.c deleted file mode 100644 index c6e227c7d..000000000 --- a/nuttx/lib/stdlib/lib_imaxabs.c +++ /dev/null @@ -1,54 +0,0 @@ -/************************************************************************ - * lib/stdlib//lib_abs.c - * - * Copyright (C) 2010-2011 Gregory Nutt. All rights reserved. - * Author: Gregory Nutt <gnutt@nuttx.org> - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 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. Neither the name NuttX nor the names of its contributors may be - * used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS - * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE - * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, - * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, - * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS - * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED - * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN - * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGE. - * - ************************************************************************/ - -/************************************************************************ - * Included Files - ************************************************************************/ - -#include <nuttx/config.h> -#include <inttypes.h> - -/************************************************************************ - * Global Functions - ************************************************************************/ - -intmax_t imaxabs(intmax_t j) -{ - if (j < 0) - { - j = -j; - } - return j; -} diff --git a/nuttx/lib/stdlib/lib_labs.c b/nuttx/lib/stdlib/lib_labs.c deleted file mode 100644 index f7218ee83..000000000 --- a/nuttx/lib/stdlib/lib_labs.c +++ /dev/null @@ -1,54 +0,0 @@ -/************************************************************************ - * lib/stdlib/lib_labs.c - * - * Copyright (C) 2010-2011 Gregory Nutt. All rights reserved. - * Author: Gregory Nutt <gnutt@nuttx.org> - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 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. Neither the name NuttX nor the names of its contributors may be - * used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS - * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE - * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, - * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, - * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS - * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED - * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN - * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGE. - * - ************************************************************************/ - -/************************************************************************ - * Included Files - ************************************************************************/ - -#include <nuttx/config.h> -#include <stdlib.h> - -/************************************************************************ - * Global Functions - ************************************************************************/ - -long int labs(long int j) -{ - if (j < 0) - { - j = -j; - } - return j; -} diff --git a/nuttx/lib/stdlib/lib_llabs.c b/nuttx/lib/stdlib/lib_llabs.c deleted file mode 100644 index db7d3dbe0..000000000 --- a/nuttx/lib/stdlib/lib_llabs.c +++ /dev/null @@ -1,57 +0,0 @@ -/************************************************************************ - * lib/stdlib/lib_llabs.c - * - * Copyright (C) 2010-2011 Gregory Nutt. All rights reserved. - * Author: Gregory Nutt <gnutt@nuttx.org> - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 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. Neither the name NuttX nor the names of its contributors may be - * used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS - * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE - * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, - * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, - * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS - * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED - * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN - * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGE. - * - ************************************************************************/ - -/************************************************************************ - * Included Files - ************************************************************************/ - -#include <nuttx/config.h> -#include <nuttx/compiler.h> -#include <stdlib.h> - -/************************************************************************ - * Global Functions - ************************************************************************/ - -#ifdef CONFIG_HAVE_LONG_LONG -long long int llabs(long long int j) -{ - if (j < 0) - { - j = -j; - } - return j; -} -#endif diff --git a/nuttx/lib/stdlib/lib_qsort.c b/nuttx/lib/stdlib/lib_qsort.c deleted file mode 100644 index 9dd5c0040..000000000 --- a/nuttx/lib/stdlib/lib_qsort.c +++ /dev/null @@ -1,238 +0,0 @@ -/**************************************************************************** - * lib/stdlib/lib_qsort.c - * - * Copyright (C) 2007, 2009, 2011 Gregory Nutt. All rights reserved. - * Author: Gregory Nutt <gnutt@nuttx.org> - * - * Leveraged from: - * - * Copyright (c) 1992, 1993 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 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 - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - ****************************************************************************/ - -/**************************************************************************** - * Included Files - ****************************************************************************/ - -#include <nuttx/config.h> - -#include <sys/types.h> -#include <stdlib.h> - -/**************************************************************************** - * Preprocessor Definitions - ****************************************************************************/ - -#define min(a, b) (a) < (b) ? a : b - -#define swapcode(TYPE, parmi, parmj, n) \ - { \ - long i = (n) / sizeof (TYPE); \ - register TYPE *pi = (TYPE *) (parmi); \ - register TYPE *pj = (TYPE *) (parmj); \ - do { \ - register TYPE t = *pi; \ - *pi++ = *pj; \ - *pj++ = t; \ - } while (--i > 0); \ - } - -#define SWAPINIT(a, size) \ - swaptype = ((char *)a - (char *)0) % sizeof(long) || \ - size % sizeof(long) ? 2 : size == sizeof(long)? 0 : 1; - -#define swap(a, b) \ - if (swaptype == 0) \ - { \ - long t = *(long *)(a); \ - *(long *)(a) = *(long *)(b); \ - *(long *)(b) = t; \ - } \ - else \ - { \ - swapfunc(a, b, size, swaptype); \ - } - -#define vecswap(a, b, n) if ((n) > 0) swapfunc(a, b, n, swaptype) - -/**************************************************************************** - * Private Function Prototypes - ****************************************************************************/ - -static inline void swapfunc(char *a, char *b, int n, int swaptype); -static inline char *med3(char *a, char *b, char *c, - int (*compar)(const void *, const void *)); - -/**************************************************************************** - * Private Functions - ****************************************************************************/ - -static inline void swapfunc(char *a, char *b, int n, int swaptype) -{ - if(swaptype <= 1) - { - swapcode(long, a, b, n) - } - else - { - swapcode(char, a, b, n) - } -} - -static inline char *med3(char *a, char *b, char *c, - int (*compar)(const void *, const void *)) -{ - return compar(a, b) < 0 ? - (compar(b, c) < 0 ? b : (compar(a, c) < 0 ? c : a )) - :(compar(b, c) > 0 ? b : (compar(a, c) < 0 ? a : c )); -} - -/**************************************************************************** - * Public Function - ****************************************************************************/ - -/**************************************************************************** - * Name: qsort - * - * Description: - * Qsort routine from Bentley & McIlroy's "Engineering a Sort Function". - * - ****************************************************************************/ - -void qsort(void *base, size_t nmemb, size_t size, - int(*compar)(const void *, const void *)) -{ - char *pa, *pb, *pc, *pd, *pl, *pm, *pn; - int d, r, swaptype, swap_cnt; - -loop: - SWAPINIT(base, size); - swap_cnt = 0; - if (nmemb < 7) - { - for (pm = (char *) base + size; pm < (char *) base + nmemb * size; pm += size) - { - for (pl = pm; pl > (char *) base && compar(pl - size, pl) > 0; pl -= size) - { - swap(pl, pl - size); - } - } - return; - } - - pm = (char *) base + (nmemb / 2) * size; - if (nmemb > 7) - { - pl = base; - pn = (char *) base + (nmemb - 1) * size; - if (nmemb > 40) - { - d = (nmemb / 8) * size; - pl = med3(pl, pl + d, pl + 2 * d, compar); - pm = med3(pm - d, pm, pm + d, compar); - pn = med3(pn - 2 * d, pn - d, pn, compar); - } - pm = med3(pl, pm, pn, compar); - } - swap(base, pm); - pa = pb = (char *) base + size; - - pc = pd = (char *) base + (nmemb - 1) * size; - for (;;) - { - while (pb <= pc && (r = compar(pb, base)) <= 0) - { - if (r == 0) - { - swap_cnt = 1; - swap(pa, pb); - pa += size; - } - pb += size; - } - while (pb <= pc && (r = compar(pc, base)) >= 0) - { - if (r == 0) - { - swap_cnt = 1; - swap(pc, pd); - pd -= size; - } - pc -= size; - } - - if (pb > pc) - { - break; - } - - swap(pb, pc); - swap_cnt = 1; - pb += size; - pc -= size; - } - - if (swap_cnt == 0) - { - /* Switch to insertion sort */ - - for (pm = (char *) base + size; pm < (char *) base + nmemb * size; pm += size) - { - for (pl = pm; pl > (char *) base && compar(pl - size, pl) > 0; pl -= size) - { - swap(pl, pl - size); - } - } - return; - } - - pn = (char *) base + nmemb * size; - r = min(pa - (char *)base, pb - pa); - vecswap(base, pb - r, r); - r = min(pd - pc, pn - pd - size); - vecswap(pb, pn - r, r); - - if ((r = pb - pa) > size) - { - qsort(base, r / size, size, compar); - } - - if ((r = pd - pc) > size) - { - /* Iterate rather than recurse to save stack space */ - base = pn - r; - nmemb = r / size; - goto loop; - } -} - diff --git a/nuttx/lib/stdlib/lib_rand.c b/nuttx/lib/stdlib/lib_rand.c deleted file mode 100644 index 7227c52d0..000000000 --- a/nuttx/lib/stdlib/lib_rand.c +++ /dev/null @@ -1,220 +0,0 @@ -/************************************************************ - * lib/stdlib/lib_rand.c - * - * Copyright (C) 2007, 2011 Gregory Nutt. All rights reserved. - * Author: Gregory Nutt <gnutt@nuttx.org> - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 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. Neither the name NuttX nor the names of its contributors may be - * used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS - * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE - * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, - * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, - * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS - * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED - * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN - * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGE. - * - ************************************************************/ - -/************************************************************ - * Compilation Switches - ************************************************************/ - -/************************************************************ - * Included Files - ************************************************************/ - -#include <sys/types.h> -#include <stdlib.h> - -/************************************************************ - * Definitions - ************************************************************/ - -#ifndef CONFIG_LIB_RAND_ORDER -#define CONFIG_LIB_RAND_ORDER 1 -#endif - -/* Values needed by the random number generator */ - -#define RND1_CONSTK 470001 -#define RND1_CONSTP 999563 -#define RND2_CONSTK1 366528 -#define RND2_CONSTK2 508531 -#define RND2_CONSTP 998917 -#define RND3_CONSTK1 360137 -#define RND3_CONSTK2 519815 -#define RND3_CONSTK3 616087 -#define RND3_CONSTP 997783 - -#if CONFIG_LIB_RAND_ORDER == 1 -# define RND_CONSTP RND1_CONSTP -#elif CONFIG_LIB_RAND_ORDER == 2 -# define RND_CONSTP RND2_CONSTP -#else -# define RND_CONSTP RND3_CONSTP -#endif - -/************************************************************ - * Private Type Declarations - ************************************************************/ - -/************************************************************ - * Private Function Prototypes - ************************************************************/ - -static unsigned int nrand(unsigned int nLimit); -static double_t frand1(void); -#if (CONFIG_LIB_RAND_ORDER > 1) -static double_t frand2(void); -#if (CONFIG_LIB_RAND_ORDER > 2) -static double_t frand3(void); -#endif -#endif - -/********************************************************** - * Global Constant Data - **********************************************************/ - -/************************************************************ - * Global Variables - ************************************************************/ - -/********************************************************** - * Private Constant Data - **********************************************************/ - -/************************************************************ - * Private Variables - ************************************************************/ - -static unsigned long g_nRandInt1; -#if (CONFIG_LIB_RAND_ORDER > 1) -static unsigned long g_nRandInt2; -#if (CONFIG_LIB_RAND_ORDER > 2) -static unsigned long g_nRandInt3; -#endif -#endif - -/************************************************************ - * Private Functions - ************************************************************/ - -static unsigned int nrand(unsigned int nLimit) -{ - unsigned long nResult; - double_t fRatio; - - /* Loop to be sure a legal random number is generated */ - do { - - /* Get a random integer in the requested range */ -#if (CONFIG_LIB_RAND_ORDER == 1) - fRatio = frand1(); -#elif (CONFIG_LIB_RAND_ORDER == 2) - fRatio = frand2(); -#else - fRatio = frand3(); -#endif - - /* Then, produce the return-able value */ - nResult = (unsigned long)(((double_t)nLimit) * fRatio); - - } while (nResult >= (unsigned long)nLimit); - - return (unsigned int)nResult; - -} /* end nrand */ - -static double_t frand1(void) -{ - unsigned long nRandInt; - - /* First order congruential generator */ - nRandInt = (RND1_CONSTK * g_nRandInt1) % RND1_CONSTP; - g_nRandInt1 = nRandInt; - - /* Construct an floating point value in the range from 0.0 up to 1.0 */ - return ((double_t)nRandInt) / ((double_t)RND_CONSTP); - -} /* end frand */ - -#if (CONFIG_LIB_RAND_ORDER > 1) -static double_t frand2(void) -{ - unsigned long nRandInt; - - /* Second order congruential generator */ - nRandInt = (RND2_CONSTK1 * g_nRandInt1 + RND2_CONSTK2 * g_nRandInt2) % - RND2_CONSTP; - g_nRandInt2 = g_nRandInt1; - g_nRandInt1 = nRandInt; - - /* Construct an floating point value in the range from 0.0 up to 1.0 */ - return ((double_t)nRandInt) / ((double_t)RND_CONSTP); - -} /* end frand */ - -#if (CONFIG_LIB_RAND_ORDER > 2) -static double_t frand3(void) -{ - unsigned long nRandInt; - - /* Third order congruential generator */ - nRandInt = (RND3_CONSTK1 * g_nRandInt1 + RND3_CONSTK2 * g_nRandInt2 + - RND3_CONSTK2 * g_nRandInt3) % RND3_CONSTP; - g_nRandInt3 = g_nRandInt2; - g_nRandInt2 = g_nRandInt1; - g_nRandInt1 = nRandInt; - - /* Construct an floating point value in the range from 0.0 up to 1.0 */ - return ((double_t)nRandInt) / ((double_t)RND_CONSTP); - -} /* end frand */ -#endif -#endif - -/************************************************************ - * Public Functions - ************************************************************/ -/************************************************************ - * Function: srand, rand - ************************************************************/ - -void srand(unsigned int seed) -{ - g_nRandInt1 = seed; -#if (CONFIG_LIB_RAND_ORDER > 1) - g_nRandInt2 = seed; - (void)frand1(); -#if (CONFIG_LIB_RAND_ORDER > 2) - g_nRandInt3 = seed; - (void)frand2(); -#endif -#endif - -} /* end srand */ - -int rand(void) -{ - return (int)nrand(32768); - -} /* end rand */ - |