annotate place.c @ 65:161edab0d361

test undef
author David A. Holland
date Sun, 31 Mar 2013 02:18:24 -0400
parents 2e25e55dba6b
children 1c0575f7dd46
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1 /*-
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2 * Copyright (c) 2010 The NetBSD Foundation, Inc.
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3 * All rights reserved.
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4 *
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5 * This code is derived from software contributed to The NetBSD Foundation
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6 * by David A. Holland.
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7 *
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8 * Redistribution and use in source and binary forms, with or without
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9 * modification, are permitted provided that the following conditions
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10 * are met:
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11 * 1. Redistributions of source code must retain the above copyright
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12 * notice, this list of conditions and the following disclaimer.
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13 * 2. Redistributions in binary form must reproduce the above copyright
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14 * notice, this list of conditions and the following disclaimer in the
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15 * documentation and/or other materials provided with the distribution.
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16 *
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17 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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18 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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19 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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20 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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21 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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22 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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23 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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24 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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25 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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26 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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27 * POSSIBILITY OF SUCH DAMAGE.
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28 */
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29
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30 #include <assert.h>
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31 #include <stdarg.h>
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32 #include <stdio.h>
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33 #include <stdlib.h>
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34
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35 #include "utils.h"
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36 #include "array.h"
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37 #include "place.h"
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38
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39 struct placefile {
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40 struct place includedfrom;
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41 char *name;
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42 int depth;
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43 bool fromsystemdir;
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44 };
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45 DECLARRAY(placefile, static __unused);
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46 DEFARRAY(placefile, static);
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47
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48 static struct placefilearray placefiles;
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49 static bool overall_failure;
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50
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51 ////////////////////////////////////////////////////////////
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52 // seenfiles
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53
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54 static
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55 struct placefile *
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56 placefile_create(const struct place *from, const char *name,
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57 bool fromsystemdir)
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58 {
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59 struct placefile *pf;
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60
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61 pf = domalloc(sizeof(*pf));
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62 pf->includedfrom = *from;
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63 pf->name = dostrdup(name);
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64 pf->fromsystemdir = fromsystemdir;
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65 if (from->file != NULL) {
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66 pf->depth = from->file->depth + 1;
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67 } else {
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68 pf->depth = 1;
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69 }
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70 return pf;
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71 }
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72
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73 static
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74 void
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75 placefile_destroy(struct placefile *pf)
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76 {
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77 dostrfree(pf->name);
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78 dofree(pf, sizeof(*pf));
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79 }
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80
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81 DESTROYALL_ARRAY(placefile, );
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82
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83 const struct placefile *
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84 place_addfile(const struct place *place, const char *file, bool issystem)
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85 {
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86 struct placefile *pf;
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87
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88 pf = placefile_create(place, file, issystem);
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89 placefilearray_add(&placefiles, pf, NULL);
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90 if (pf->depth > 128) {
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91 complain(place, "Maximum include nesting depth exceeded");
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92 die();
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93 }
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94 return pf;
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95 }
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96
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97 ////////////////////////////////////////////////////////////
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98 // places
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99
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100 void
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101 place_setnowhere(struct place *p)
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102 {
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103 p->type = P_NOWHERE;
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104 p->file = NULL;
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105 p->line = 0;
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106 p->column = 0;
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107 }
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108
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109 void
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110 place_setbuiltin(struct place *p, unsigned num)
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111 {
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112 p->type = P_BUILTIN;
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113 p->file = NULL;
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114 p->line = num;
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115 p->column = 1;
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116 }
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117
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118 void
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119 place_setcommandline(struct place *p, unsigned line, unsigned column)
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120 {
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121 p->type = P_COMMANDLINE;
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122 p->file = NULL;
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123 p->line = line;
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124 p->column = column;
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125 }
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126
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127 void
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128 place_setfilestart(struct place *p, const struct placefile *pf)
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129 {
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130 p->type = P_FILE;
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131 p->file = pf;
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132 p->line = 1;
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133 p->column = 1;
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134 }
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135
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136 static
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137 const char *
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138 place_getname(const struct place *p)
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139 {
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140 switch (p->type) {
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141 case P_NOWHERE: return "<nowhere>";
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142 case P_BUILTIN: return "<built-in>";
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143 case P_COMMANDLINE: return "<command-line>";
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144 case P_FILE: return p->file->name;
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145 }
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146 assert(0);
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147 return NULL;
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148 }
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149
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150 static
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151 void
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152 place_printfrom(const struct place *p)
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153 {
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154 const struct place *from;
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155
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156 from = &p->file->includedfrom;
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157 if (from->type != P_NOWHERE) {
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158 place_printfrom(from);
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159 fprintf(stderr, "In file included from %s:%u:%u:\n",
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160 place_getname(from), from->line, from->column);
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161 }
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162 }
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163
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164 ////////////////////////////////////////////////////////////
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165 // complaints
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166
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167 void
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168 complain(const struct place *p, const char *fmt, ...)
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169 {
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170 va_list ap;
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171
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172 place_printfrom(p);
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173 fprintf(stderr, "%s:%u:%u: ", place_getname(p), p->line, p->column);
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174 va_start(ap, fmt);
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175 vfprintf(stderr, fmt, ap);
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176 va_end(ap);
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177 fprintf(stderr, "\n");
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178 }
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179
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180 void
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181 complain_fail(void)
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182 {
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183 overall_failure = true;
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184 }
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185
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186 bool
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187 complain_failed(void)
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188 {
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189 return overall_failure;
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190 }
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191
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192 ////////////////////////////////////////////////////////////
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193 // module init and cleanup
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194
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195 void
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196 place_init(void)
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197 {
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198 placefilearray_init(&placefiles);
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199 }
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200
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201 void
800f3a560a3b move seenfiles to place.c too
David A. Holland
parents: 8
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202 place_cleanup(void)
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203 {
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120629a5d6bf seenfile -> placefile (clearer)
David A. Holland
parents: 12
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204 placefilearray_destroyall(&placefiles);
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David A. Holland
parents: 12
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205 placefilearray_cleanup(&placefiles);
10
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parents: 8
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206 }