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annotate src/SDL_assert.c @ 5091:79bd1e289005

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Fixed bug #1102 Check /usr/local/bin for hg before sourcing the user's bash settings
author Sam Lantinga <slouken@libsdl.org>
date Mon, 24 Jan 2011 17:47:18 -0800
parents c2539ff054c8
children 327f181542f1
rev   line source
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1 /*
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2 SDL - Simple DirectMedia Layer
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3 Copyright (C) 1997-2010 Sam Lantinga
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4
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5 This library is free software; you can redistribute it and/or
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6 modify it under the terms of the GNU Lesser General Public
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7 License as published by the Free Software Foundation; either
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8 version 2.1 of the License, or (at your option) any later version.
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9
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10 This library is distributed in the hope that it will be useful,
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11 but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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13 Lesser General Public License for more details.
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14
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15 You should have received a copy of the GNU Lesser General Public
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16 License along with this library; if not, write to the Free Software
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17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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18
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19 Sam Lantinga
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20 slouken@libsdl.org
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21 */
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22
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23 #include "SDL.h"
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24 #include "SDL_atomic.h"
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25 #include "SDL_assert.h"
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26 #include "SDL_assert_c.h"
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27 #include "video/SDL_sysvideo.h"
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28
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29 #ifdef __WIN32__
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30 #define WIN32_LEAN_AND_MEAN
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31 #include <windows.h>
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32
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33 #ifndef WS_OVERLAPPEDWINDOW
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34 #define WS_OVERLAPPEDWINDOW 0
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35 #endif
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36
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37 #ifdef UNICODE
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38 #define WIN_UTF8ToString(S) (WCHAR *)SDL_iconv_string("UCS-2", "UTF-8", (char *)S, SDL_strlen(S)+1)
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39 #else
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40 #define WIN_UTF8ToString(S) SDL_iconv_string("ASCII", "UTF-8", (char *)S, SDL_strlen(S)+1)
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41 #endif
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42 #else /* fprintf, _exit(), etc. */
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43 #include <stdio.h>
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44 #include <stdlib.h>
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45 #include <unistd.h>
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46 #endif
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47
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48 static SDL_assert_state
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49 SDL_PromptAssertion(const SDL_assert_data *data, void *userdata);
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50
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51 /*
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52 * We keep all triggered assertions in a singly-linked list so we can
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53 * generate a report later.
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54 */
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55 static SDL_assert_data assertion_list_terminator = { 0, 0, 0, 0, 0, 0, 0 };
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56 static SDL_assert_data *triggered_assertions = &assertion_list_terminator;
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57
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58 static SDL_mutex *assertion_mutex = NULL;
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59 static SDL_AssertionHandler assertion_handler = SDL_PromptAssertion;
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60 static void *assertion_userdata = NULL;
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61
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62 #ifdef __GNUC__
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63 static void
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64 debug_print(const char *fmt, ...) __attribute__((format (printf, 1, 2)));
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65 #endif
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66
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67 static void
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68 debug_print(const char *fmt, ...)
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69 {
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70 #ifdef __WIN32__
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71 /* Format into a buffer for OutputDebugStringA(). */
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72 char buf[1024];
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73 char *startptr;
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74 char *ptr;
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75 LPTSTR tstr;
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76 int len;
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77 va_list ap;
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78 va_start(ap, fmt);
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79 len = (int) SDL_vsnprintf(buf, sizeof (buf), fmt, ap);
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80 va_end(ap);
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81
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82 /* Visual C's vsnprintf() may not null-terminate the buffer. */
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83 if ((len >= sizeof (buf)) || (len < 0)) {
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84 buf[sizeof (buf) - 1] = '\0';
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85 }
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86
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87 /* Write it, sorting out the Unix newlines... */
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88 startptr = buf;
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89 for (ptr = startptr; *ptr; ptr++) {
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90 if (*ptr == '\n') {
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91 *ptr = '\0';
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92 tstr = WIN_UTF8ToString(startptr);
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93 OutputDebugString(tstr);
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94 SDL_free(tstr);
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95 OutputDebugString(TEXT("\r\n"));
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96 startptr = ptr+1;
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97 }
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98 }
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99
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100 /* catch that last piece if it didn't have a newline... */
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101 if (startptr != ptr) {
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102 tstr = WIN_UTF8ToString(startptr);
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103 OutputDebugString(tstr);
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104 SDL_free(tstr);
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105 }
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106 #else
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107 /* Unix has it easy. Just dump it to stderr. */
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108 va_list ap;
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109 va_start(ap, fmt);
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110 vfprintf(stderr, fmt, ap);
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111 va_end(ap);
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112 fflush(stderr);
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113 #endif
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114 }
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115
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116
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117 #ifdef __WIN32__
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118 static SDL_assert_state SDL_Windows_AssertChoice = SDL_ASSERTION_ABORT;
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119 static const SDL_assert_data *SDL_Windows_AssertData = NULL;
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120
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121 static LRESULT CALLBACK
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122 SDL_Assertion_WndProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam)
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123 {
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124 switch (msg)
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125 {
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126 case WM_CREATE:
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127 {
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128 /* !!! FIXME: all this code stinks. */
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129 const SDL_assert_data *data = SDL_Windows_AssertData;
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130 char buf[1024];
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131 LPTSTR tstr;
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132 const int w = 100;
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133 const int h = 25;
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134 const int gap = 10;
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135 int x = gap;
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136 int y = 50;
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diff changeset
137 int len;
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diff changeset
138 int i;
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139 static const struct {
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140 LPCTSTR name;
3647
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141 SDL_assert_state state;
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142 } buttons[] = {
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143 {TEXT("Abort"), SDL_ASSERTION_ABORT },
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144 {TEXT("Break"), SDL_ASSERTION_BREAK },
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145 {TEXT("Retry"), SDL_ASSERTION_RETRY },
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146 {TEXT("Ignore"), SDL_ASSERTION_IGNORE },
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147 {TEXT("Always Ignore"), SDL_ASSERTION_ALWAYS_IGNORE },
3647
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148 };
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149
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150 len = (int) SDL_snprintf(buf, sizeof (buf),
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151 "Assertion failure at %s (%s:%d), triggered %u time%s:\r\n '%s'",
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152 data->function, data->filename, data->linenum,
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153 data->trigger_count, (data->trigger_count == 1) ? "" : "s",
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154 data->condition);
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155 if ((len < 0) || (len >= sizeof (buf))) {
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156 buf[sizeof (buf) - 1] = '\0';
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157 }
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158
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159 tstr = WIN_UTF8ToString(buf);
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160 CreateWindow(TEXT("STATIC"), tstr,
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161 WS_VISIBLE | WS_CHILD | SS_LEFT,
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162 x, y, 550, 100,
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163 hwnd, (HMENU) 1, NULL, NULL);
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164 SDL_free(tstr);
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165 y += 110;
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166
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167 for (i = 0; i < (sizeof (buttons) / sizeof (buttons[0])); i++) {
5088
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168 CreateWindow(TEXT("BUTTON"), buttons[i].name,
3647
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169 WS_VISIBLE | WS_CHILD,
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170 x, y, w, h,
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171 hwnd, (HMENU) buttons[i].state, NULL, NULL);
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172 x += w + gap;
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173 }
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174 break;
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175 }
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176
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177 case WM_COMMAND:
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178 SDL_Windows_AssertChoice = ((SDL_assert_state) (LOWORD(wParam)));
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179 SDL_Windows_AssertData = NULL;
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180 break;
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181
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182 case WM_DESTROY:
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183 SDL_Windows_AssertData = NULL;
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184 break;
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185 }
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186
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187 return DefWindowProc(hwnd, msg, wParam, lParam);
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188 }
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189
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190 static SDL_assert_state
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191 SDL_PromptAssertion_windows(const SDL_assert_data *data)
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192 {
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193 HINSTANCE hInstance = 0; /* !!! FIXME? */
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194 HWND hwnd;
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195 MSG msg;
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196 WNDCLASS wc = {0};
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diff changeset
197
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198 SDL_Windows_AssertChoice = SDL_ASSERTION_ABORT;
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199 SDL_Windows_AssertData = data;
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diff changeset
200
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diff changeset
201 wc.lpszClassName = TEXT("SDL_assert");
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diff changeset
202 wc.hInstance = hInstance ;
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diff changeset
203 wc.hbrBackground = GetSysColorBrush(COLOR_3DFACE);
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diff changeset
204 wc.lpfnWndProc = SDL_Assertion_WndProc;
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diff changeset
205 wc.hCursor = LoadCursor(0, IDC_ARROW);
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diff changeset
206
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207 RegisterClass(&wc);
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diff changeset
208 hwnd = CreateWindow(wc.lpszClassName, TEXT("SDL assertion failure"),
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diff changeset
209 WS_OVERLAPPEDWINDOW | WS_VISIBLE,
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diff changeset
210 150, 150, 570, 260, 0, 0, hInstance, 0);
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diff changeset
211
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diff changeset
212 while (GetMessage(&msg, NULL, 0, 0) && (SDL_Windows_AssertData != NULL)) {
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diff changeset
213 TranslateMessage(&msg);
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diff changeset
214 DispatchMessage(&msg);
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diff changeset
215 }
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parents:
diff changeset
216
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diff changeset
217 DestroyWindow(hwnd);
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diff changeset
218 UnregisterClass(wc.lpszClassName, hInstance);
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diff changeset
219 return SDL_Windows_AssertChoice;
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parents:
diff changeset
220 }
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diff changeset
221 #endif
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diff changeset
222
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diff changeset
223
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diff changeset
224 static void SDL_AddAssertionToReport(SDL_assert_data *data)
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diff changeset
225 {
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diff changeset
226 /* (data) is always a static struct defined with the assert macros, so
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diff changeset
227 we don't have to worry about copying or allocating them. */
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diff changeset
228 if (data->next == NULL) { /* not yet added? */
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diff changeset
229 data->next = triggered_assertions;
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diff changeset
230 triggered_assertions = data;
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diff changeset
231 }
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232 }
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233
3670
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234
3647
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235 static void SDL_GenerateAssertionReport(void)
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diff changeset
236 {
3670
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diff changeset
237 const SDL_assert_data *item;
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238
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239 /* only do this if the app hasn't assigned an assertion handler. */
62b6a5b99918 Clean up assertion API for public use.
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diff changeset
240 if (assertion_handler != SDL_PromptAssertion)
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diff changeset
241 return;
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242
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diff changeset
243 item = SDL_GetAssertionReport();
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diff changeset
244 if (item->condition)
3647
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diff changeset
245 {
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
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diff changeset
246 debug_print("\n\nSDL assertion report.\n");
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diff changeset
247 debug_print("All SDL assertions between last init/quit:\n\n");
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diff changeset
248
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diff changeset
249 while (item->condition) {
3647
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diff changeset
250 debug_print(
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
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parents:
diff changeset
251 "'%s'\n"
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
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diff changeset
252 " * %s (%s:%d)\n"
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
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diff changeset
253 " * triggered %u time%s.\n"
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
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parents:
diff changeset
254 " * always ignore: %s.\n",
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
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parents:
diff changeset
255 item->condition, item->function, item->filename,
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
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parents:
diff changeset
256 item->linenum, item->trigger_count,
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
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parents:
diff changeset
257 (item->trigger_count == 1) ? "" : "s",
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
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parents:
diff changeset
258 item->always_ignore ? "yes" : "no");
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
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parents:
diff changeset
259 item = item->next;
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
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parents:
diff changeset
260 }
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
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diff changeset
261 debug_print("\n");
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diff changeset
262
3670
62b6a5b99918 Clean up assertion API for public use.
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diff changeset
263 SDL_ResetAssertionReport();
3647
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
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diff changeset
264 }
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
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parents:
diff changeset
265 }
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
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diff changeset
266
3661
22b6a0c7ea6e Handle assertion failures during assertion handler.
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diff changeset
267 static void SDL_ExitProcess(int exitcode)
3647
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diff changeset
268 {
5088
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diff changeset
269 #ifdef __WIN32__
3647
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diff changeset
270 ExitProcess(42);
3656
f17ea6f49745 Assume _exit() is available. It may be, even if unix isn't defined.
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parents: 3655
diff changeset
271 #else
3647
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diff changeset
272 _exit(42);
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diff changeset
273 #endif
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
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diff changeset
274 }
3661
22b6a0c7ea6e Handle assertion failures during assertion handler.
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275
22b6a0c7ea6e Handle assertion failures during assertion handler.
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276 static void SDL_AbortAssertion(void)
22b6a0c7ea6e Handle assertion failures during assertion handler.
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diff changeset
277 {
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diff changeset
278 SDL_Quit();
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279 SDL_ExitProcess(42);
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280 }
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281
3647
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282
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283 static SDL_assert_state
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284 SDL_PromptAssertion(const SDL_assert_data *data, void *userdata)
3647
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285 {
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286 const char *envr;
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287 SDL_assert_state state = SDL_ASSERTION_ABORT;
3685
64ce267332c6 Switched from SDL_WindowID and SDL_TextureID to SDL_Window* and SDL_Texture* for code simplicity and improved performance.
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288 SDL_Window *window;
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289
3670
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diff changeset
290 (void) userdata; /* unused in default handler. */
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291
3647
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292 debug_print("\n\n"
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293 "Assertion failure at %s (%s:%d), triggered %u time%s:\n"
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294 " '%s'\n"
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295 "\n",
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diff changeset
296 data->function, data->filename, data->linenum,
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diff changeset
297 data->trigger_count, (data->trigger_count == 1) ? "" : "s",
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diff changeset
298 data->condition);
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299
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300 /* let env. variable override, so unit tests won't block in a GUI. */
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301 envr = SDL_getenv("SDL_ASSERT");
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302 if (envr != NULL) {
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parents:
diff changeset
303 if (SDL_strcmp(envr, "abort") == 0) {
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304 return SDL_ASSERTION_ABORT;
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diff changeset
305 } else if (SDL_strcmp(envr, "break") == 0) {
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diff changeset
306 return SDL_ASSERTION_BREAK;
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parents:
diff changeset
307 } else if (SDL_strcmp(envr, "retry") == 0) {
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parents:
diff changeset
308 return SDL_ASSERTION_RETRY;
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parents:
diff changeset
309 } else if (SDL_strcmp(envr, "ignore") == 0) {
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310 return SDL_ASSERTION_IGNORE;
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diff changeset
311 } else if (SDL_strcmp(envr, "always_ignore") == 0) {
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diff changeset
312 return SDL_ASSERTION_ALWAYS_IGNORE;
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diff changeset
313 } else {
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314 return SDL_ASSERTION_ABORT; /* oh well. */
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diff changeset
315 }
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316 }
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diff changeset
317
3657
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318 /* Leave fullscreen mode, if possible (scary!) */
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diff changeset
319 window = SDL_GetFocusWindow();
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320 if (window) {
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321 if (SDL_GetWindowFlags(window) & SDL_WINDOW_FULLSCREEN) {
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322 SDL_MinimizeWindow(window);
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323 } else {
3670
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324 /* !!! FIXME: ungrab the input if we're not fullscreen? */
3657
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325 /* No need to mess with the window */
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diff changeset
326 window = 0;
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327 }
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328 }
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329
3647
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330 /* platform-specific UI... */
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parents:
diff changeset
331
5088
c2539ff054c8 Fixed compiling on Windows Mobile SDK 5.0 with Visual Studio 2008
Sam Lantinga <slouken@libsdl.org>
parents: 5064
diff changeset
332 #ifdef __WIN32__
3657
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diff changeset
333 state = SDL_PromptAssertion_windows(data);
3647
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parents:
diff changeset
334
3690
e431b888ac6c Fixed compilation on iPhone
Sam Lantinga <slouken@libsdl.org>
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diff changeset
335 #elif __MACOSX__
3647
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parents:
diff changeset
336 /* This has to be done in an Objective-C (*.m) file, so we call out. */
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337 extern SDL_assert_state SDL_PromptAssertion_cocoa(const SDL_assert_data *);
3657
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diff changeset
338 state = SDL_PromptAssertion_cocoa(data);
3647
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diff changeset
339
3657
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diff changeset
340 #else
3647
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diff changeset
341 /* this is a little hacky. */
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parents:
diff changeset
342 for ( ; ; ) {
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parents:
diff changeset
343 char buf[32];
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diff changeset
344 fprintf(stderr, "Abort/Break/Retry/Ignore/AlwaysIgnore? [abriA] : ");
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
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diff changeset
345 fflush(stderr);
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parents:
diff changeset
346 if (fgets(buf, sizeof (buf), stdin) == NULL) {
3657
eaea59cee6f2 Leave fullscreen mode to pop an assertion dialog
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diff changeset
347 break;
3647
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
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parents:
diff changeset
348 }
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parents:
diff changeset
349
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
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parents:
diff changeset
350 if (SDL_strcmp(buf, "a") == 0) {
3657
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diff changeset
351 state = SDL_ASSERTION_ABORT;
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diff changeset
352 break;
3647
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parents:
diff changeset
353 } else if (SDL_strcmp(envr, "b") == 0) {
3657
eaea59cee6f2 Leave fullscreen mode to pop an assertion dialog
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diff changeset
354 state = SDL_ASSERTION_BREAK;
eaea59cee6f2 Leave fullscreen mode to pop an assertion dialog
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diff changeset
355 break;
3647
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
356 } else if (SDL_strcmp(envr, "r") == 0) {
3657
eaea59cee6f2 Leave fullscreen mode to pop an assertion dialog
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diff changeset
357 state = SDL_ASSERTION_RETRY;
eaea59cee6f2 Leave fullscreen mode to pop an assertion dialog
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diff changeset
358 break;
3647
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parents:
diff changeset
359 } else if (SDL_strcmp(envr, "i") == 0) {
3657
eaea59cee6f2 Leave fullscreen mode to pop an assertion dialog
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diff changeset
360 state = SDL_ASSERTION_IGNORE;
eaea59cee6f2 Leave fullscreen mode to pop an assertion dialog
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diff changeset
361 break;
3647
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
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parents:
diff changeset
362 } else if (SDL_strcmp(envr, "A") == 0) {
3657
eaea59cee6f2 Leave fullscreen mode to pop an assertion dialog
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diff changeset
363 state = SDL_ASSERTION_ALWAYS_IGNORE;
eaea59cee6f2 Leave fullscreen mode to pop an assertion dialog
Sam Lantinga <slouken@libsdl.org>
parents: 3656
diff changeset
364 break;
3647
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
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parents:
diff changeset
365 }
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
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parents:
diff changeset
366 }
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
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parents:
diff changeset
367 #endif
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
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parents:
diff changeset
368
3657
eaea59cee6f2 Leave fullscreen mode to pop an assertion dialog
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diff changeset
369 /* Re-enter fullscreen mode */
eaea59cee6f2 Leave fullscreen mode to pop an assertion dialog
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diff changeset
370 if (window) {
eaea59cee6f2 Leave fullscreen mode to pop an assertion dialog
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parents: 3656
diff changeset
371 SDL_RestoreWindow(window);
eaea59cee6f2 Leave fullscreen mode to pop an assertion dialog
Sam Lantinga <slouken@libsdl.org>
parents: 3656
diff changeset
372 }
eaea59cee6f2 Leave fullscreen mode to pop an assertion dialog
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parents: 3656
diff changeset
373
eaea59cee6f2 Leave fullscreen mode to pop an assertion dialog
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diff changeset
374 return state;
3647
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
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parents:
diff changeset
375 }
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
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parents:
diff changeset
376
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
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parents:
diff changeset
377
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
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parents:
diff changeset
378 SDL_assert_state
3655
1cc7f0143c12 Moved SDL_FUNCTION out so it's always available, and added SDL_FILE and SDL_LINE
Sam Lantinga <slouken@libsdl.org>
parents: 3651
diff changeset
379 SDL_ReportAssertion(SDL_assert_data *data, const char *func, const char *file,
1cc7f0143c12 Moved SDL_FUNCTION out so it's always available, and added SDL_FILE and SDL_LINE
Sam Lantinga <slouken@libsdl.org>
parents: 3651
diff changeset
380 int line)
3647
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
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parents:
diff changeset
381 {
3661
22b6a0c7ea6e Handle assertion failures during assertion handler.
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parents: 3657
diff changeset
382 static int assertion_running = 0;
3662
6a0b3048f271 Handle assertion failures when SDL_Init() isn't called.
Ryan C. Gordon <icculus@icculus.org>
parents: 3661
diff changeset
383 static SDL_SpinLock spinlock = 0;
3661
22b6a0c7ea6e Handle assertion failures during assertion handler.
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parents: 3657
diff changeset
384 SDL_assert_state state = SDL_ASSERTION_IGNORE;
3647
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parents:
diff changeset
385
3662
6a0b3048f271 Handle assertion failures when SDL_Init() isn't called.
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parents: 3661
diff changeset
386 SDL_AtomicLock(&spinlock);
6a0b3048f271 Handle assertion failures when SDL_Init() isn't called.
Ryan C. Gordon <icculus@icculus.org>
parents: 3661
diff changeset
387 if (assertion_mutex == NULL) { /* never called SDL_Init()? */
6a0b3048f271 Handle assertion failures when SDL_Init() isn't called.
Ryan C. Gordon <icculus@icculus.org>
parents: 3661
diff changeset
388 assertion_mutex = SDL_CreateMutex();
6a0b3048f271 Handle assertion failures when SDL_Init() isn't called.
Ryan C. Gordon <icculus@icculus.org>
parents: 3661
diff changeset
389 if (assertion_mutex == NULL) {
6a0b3048f271 Handle assertion failures when SDL_Init() isn't called.
Ryan C. Gordon <icculus@icculus.org>
parents: 3661
diff changeset
390 SDL_AtomicUnlock(&spinlock);
6a0b3048f271 Handle assertion failures when SDL_Init() isn't called.
Ryan C. Gordon <icculus@icculus.org>
parents: 3661
diff changeset
391 return SDL_ASSERTION_IGNORE; /* oh well, I guess. */
6a0b3048f271 Handle assertion failures when SDL_Init() isn't called.
Ryan C. Gordon <icculus@icculus.org>
parents: 3661
diff changeset
392 }
6a0b3048f271 Handle assertion failures when SDL_Init() isn't called.
Ryan C. Gordon <icculus@icculus.org>
parents: 3661
diff changeset
393 }
6a0b3048f271 Handle assertion failures when SDL_Init() isn't called.
Ryan C. Gordon <icculus@icculus.org>
parents: 3661
diff changeset
394 SDL_AtomicUnlock(&spinlock);
6a0b3048f271 Handle assertion failures when SDL_Init() isn't called.
Ryan C. Gordon <icculus@icculus.org>
parents: 3661
diff changeset
395
3647
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
396 if (SDL_LockMutex(assertion_mutex) < 0) {
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
397 return SDL_ASSERTION_IGNORE; /* oh well, I guess. */
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
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parents:
diff changeset
398 }
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
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parents:
diff changeset
399
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
400 /* doing this because Visual C is upset over assigning in the macro. */
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
401 if (data->trigger_count == 0) {
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
402 data->function = func;
3655
1cc7f0143c12 Moved SDL_FUNCTION out so it's always available, and added SDL_FILE and SDL_LINE
Sam Lantinga <slouken@libsdl.org>
parents: 3651
diff changeset
403 data->filename = file;
1cc7f0143c12 Moved SDL_FUNCTION out so it's always available, and added SDL_FILE and SDL_LINE
Sam Lantinga <slouken@libsdl.org>
parents: 3651
diff changeset
404 data->linenum = line;
3647
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
405 }
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
406
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
407 SDL_AddAssertionToReport(data);
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
408
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
409 data->trigger_count++;
3661
22b6a0c7ea6e Handle assertion failures during assertion handler.
Ryan C. Gordon <icculus@icculus.org>
parents: 3657
diff changeset
410
22b6a0c7ea6e Handle assertion failures during assertion handler.
Ryan C. Gordon <icculus@icculus.org>
parents: 3657
diff changeset
411 assertion_running++;
22b6a0c7ea6e Handle assertion failures during assertion handler.
Ryan C. Gordon <icculus@icculus.org>
parents: 3657
diff changeset
412 if (assertion_running > 1) { /* assert during assert! Abort. */
22b6a0c7ea6e Handle assertion failures during assertion handler.
Ryan C. Gordon <icculus@icculus.org>
parents: 3657
diff changeset
413 if (assertion_running == 2) {
22b6a0c7ea6e Handle assertion failures during assertion handler.
Ryan C. Gordon <icculus@icculus.org>
parents: 3657
diff changeset
414 SDL_AbortAssertion();
22b6a0c7ea6e Handle assertion failures during assertion handler.
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415 } else if (assertion_running == 3) { /* Abort asserted! */
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416 SDL_ExitProcess(42);
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417 } else {
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418 while (1) { /* do nothing but spin; what else can you do?! */ }
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419 }
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420 }
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421
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422 if (!data->always_ignore) {
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423 state = assertion_handler(data, assertion_userdata);
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424 }
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425
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426 switch (state)
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427 {
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428 case SDL_ASSERTION_ABORT:
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429 SDL_AbortAssertion();
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430 return SDL_ASSERTION_IGNORE; /* shouldn't return, but oh well. */
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431
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432 case SDL_ASSERTION_ALWAYS_IGNORE:
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433 state = SDL_ASSERTION_IGNORE;
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434 data->always_ignore = 1;
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435 break;
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436
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437 case SDL_ASSERTION_IGNORE:
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438 case SDL_ASSERTION_RETRY:
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439 case SDL_ASSERTION_BREAK:
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440 break; /* macro handles these. */
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441 }
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442
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443 assertion_running--;
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444 SDL_UnlockMutex(assertion_mutex);
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445
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446 return state;
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447 }
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448
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449
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450 int SDL_AssertionsInit(void)
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451 {
3664
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452 /* this is a no-op at the moment. */
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453 return 0;
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454 }
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455
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456 void SDL_AssertionsQuit(void)
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457 {
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458 SDL_GenerateAssertionReport();
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459 if (assertion_mutex != NULL) {
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460 SDL_DestroyMutex(assertion_mutex);
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461 assertion_mutex = NULL;
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462 }
3670
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463 }
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464
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465 void SDL_SetAssertionHandler(SDL_AssertionHandler handler, void *userdata)
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466 {
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467 if (handler != NULL) {
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468 assertion_handler = handler;
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469 assertion_userdata = userdata;
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470 } else {
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471 assertion_handler = SDL_PromptAssertion;
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472 assertion_userdata = NULL;
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473 }
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474 }
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475
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476 const SDL_assert_data *SDL_GetAssertionReport(void)
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477 {
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478 return triggered_assertions;
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479 }
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480
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481 void SDL_ResetAssertionReport(void)
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482 {
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483 SDL_assert_data *item = triggered_assertions;
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484 SDL_assert_data *next = NULL;
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485 for (item = triggered_assertions; item->condition; item = next) {
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486 next = (SDL_assert_data *) item->next;
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487 item->always_ignore = SDL_FALSE;
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488 item->trigger_count = 0;
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489 item->next = NULL;
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490 }
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491
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492 triggered_assertions = &assertion_list_terminator;
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493 }
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494
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495 /* vi: set ts=4 sw=4 expandtab: */