ucx: ucx/utils.c@08018864fb91

     1 /*

     2  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.

     3  *

     4  * Copyright 2013 Olaf Wintermann. All rights reserved.

     5  *

     6  * Redistribution and use in source and binary forms, with or without

     7  * modification, are permitted provided that the following conditions are met:

     8  *

     9  *   1. Redistributions of source code must retain the above copyright

    10  *      notice, this list of conditions and the following disclaimer.

    11  *

    12  *   2. Redistributions in binary form must reproduce the above copyright

    13  *      notice, this list of conditions and the following disclaimer in the

    14  *      documentation and/or other materials provided with the distribution.

    15  *

    16  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"

    17  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE

    18  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE

    19  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE

    20  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR

    21  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF

    22  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS

    23  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN

    24  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)

    25  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE

    26  * POSSIBILITY OF SUCH DAMAGE.

    27  */

    29 #include "utils.h"

    30 #include "math.h"

    32 /* COPY FUCNTIONS */

    33 void* ucx_strcpy(void* s, void* data) {

    34     char *str = (char*) s;

    35     size_t n = 1+strlen(str);

    36     char *cpy = (char*) malloc(n);

    37     memcpy(cpy, str, n);

    38     return cpy;

    39 }

    41 void* ucx_memcpy(void* m, void* n) {

    42     size_t k = *((size_t*)n);

    43     void *cpy = malloc(k);

    44     memcpy(cpy, m, k);

    45     return cpy;

    46 }

    48 /* COMPARE FUNCTION */

    50 int ucx_strcmp(void *s1, void *s2, void *data) {

    51     return strcmp((char*)s1, (char*)s2);

    52 }

    54 int ucx_strncmp(void *s1, void *s2, void *n) {

    55     return strncmp((char*)s1, (char*)s2, *((size_t*) n));

    56 }

    58 int ucx_intcmp(void *i1, void *i2, void *data) {

    59    int a = *((int*) i1);

    60    int b = *((int*) i2);

    61    if (a == b) {

    62        return 0;

    63    } else {

    64        return a < b ? -1 : 1;

    65    }

    66 }

    68 int ucx_floatcmp(void *f1, void *f2, void *epsilon) {

    69    float a = *((float*) f1);

    70    float b = *((float*) f2);

    71    float e = !epsilon ? 1e-6f : *((float*)epsilon);

    72    if (fabsf(a - b) < e) {

    73        return 0;

    74    } else {

    75        return a < b ? -1 : 1;

    76    }

    77 }

    79 int ucx_doublecmp(void *d1, void *d2, void *epsilon) {

    80    double a = *((float*) d1);

    81    double b = *((float*) d2);

    82    double e = !epsilon ? 1e-14 : *((double*)epsilon);

    83    if (fabs(a - b) < e) {

    84        return 0;

    85    } else {

    86        return a < b ? -1 : 1;

    87    }

    88 }

    90 int ucx_ptrcmp(void *ptr1, void *ptr2, void *data) {

    91     if (ptr1 == ptr2) {

    92         return 0;

    93     } else {

    94         return ptr1 < ptr2 ? -1 : 1;

    95     }

    96 }

    98 int ucx_memcmp(void *ptr1, void *ptr2, void *n) {

    99     return memcmp(ptr1, ptr2, *((size_t*)n));

   100 }

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