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annotate util.c @ 3:e969f3575b7a

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several new changes, made gridmenu working
author Anselm R. Garbe <garbeam@wmii.de>
date Mon, 10 Jul 2006 19:46:24 +0200
parents a79188fe4a40
children e5018cae273f
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1 /*
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2 * (C)opyright MMVI Anselm R. Garbe <garbeam at gmail dot com>
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3 * See LICENSE file for license details.
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4 */
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5
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6 #include <stdarg.h>
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7 #include <stdio.h>
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8 #include <stdlib.h>
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9 #include <string.h>
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10
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11 void
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12 error(char *errstr, ...) {
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13 va_list ap;
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14 va_start(ap, errstr);
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15 vfprintf(stderr, errstr, ap);
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16 va_end(ap);
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17 exit(1);
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18 }
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19
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20 static void
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21 bad_malloc(unsigned int size)
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22 {
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23 fprintf(stderr, "fatal: could not malloc() %d bytes\n",
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24 (int) size);
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25 exit(1);
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26 }
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27
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28 void *
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29 emallocz(unsigned int size)
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30 {
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31 void *res = calloc(1, size);
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32 if(!res)
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33 bad_malloc(size);
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34 return res;
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35 }
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36
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37 void *
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38 emalloc(unsigned int size)
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39 {
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40 void *res = malloc(size);
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41 if(!res)
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42 bad_malloc(size);
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43 return res;
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44 }
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45
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46 void *
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47 erealloc(void *ptr, unsigned int size)
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48 {
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49 void *res = realloc(ptr, size);
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50 if(!res)
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51 bad_malloc(size);
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52 return res;
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53 }
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54
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55 char *
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56 estrdup(const char *str)
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57 {
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58 void *res = strdup(str);
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59 if(!res)
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60 bad_malloc(strlen(str));
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61 return res;
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62 }
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63
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64 void
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65 failed_assert(char *a, char *file, int line)
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66 {
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67 fprintf(stderr, "Assertion \"%s\" failed at %s:%d\n", a, file, line);
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68 abort();
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69 }
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70
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71 void
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72 swap(void **p1, void **p2)
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73 {
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74 void *tmp = *p1;
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75 *p1 = *p2;
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76 *p2 = tmp;
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77 }