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annotate test/testplatform.c @ 3684:cc564f08884f

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Fixed compiler warnings on 32-bit Linux
author Sam Lantinga <slouken@libsdl.org>
date Thu, 21 Jan 2010 05:49:41 +0000
parents bc50cd16bb07
children 8e5186a99af4
rev   line source
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638da75f9ab8 testplatform replaces testtypes, testendian, and testcpuinfo
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1
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2 #include <stdio.h>
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3
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4 #include "SDL.h"
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5 #include "SDL_endian.h"
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6 #include "SDL_cpuinfo.h"
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7 #include "SDL_assert.h"
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8
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9 /*
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10 * Watcom C flags these as Warning 201: "Unreachable code" if you just
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11 * compare them directly, so we push it through a function to keep the
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12 * compiler quiet. --ryan.
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13 */
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14 static int
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15 badsize(size_t sizeoftype, size_t hardcodetype)
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16 {
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17 return sizeoftype != hardcodetype;
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18 }
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19
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20 int
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21 TestTypes(SDL_bool verbose)
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22 {
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23 int error = 0;
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24
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25 if (badsize(sizeof(Uint8), 1)) {
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26 if (verbose)
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27 printf("sizeof(Uint8) != 1, instead = %u\n", sizeof(Uint8));
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28 ++error;
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29 }
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30 if (badsize(sizeof(Uint16), 2)) {
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31 if (verbose)
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32 printf("sizeof(Uint16) != 2, instead = %u\n", sizeof(Uint16));
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33 ++error;
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34 }
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35 if (badsize(sizeof(Uint32), 4)) {
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36 if (verbose)
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37 printf("sizeof(Uint32) != 4, instead = %u\n", sizeof(Uint32));
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38 ++error;
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39 }
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40 #ifdef SDL_HAS_64BIT_TYPE
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41 if (badsize(sizeof(Uint64), 8)) {
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42 if (verbose)
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43 printf("sizeof(Uint64) != 8, instead = %u\n", sizeof(Uint64));
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44 ++error;
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45 }
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46 #else
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47 if (verbose) {
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48 printf("WARNING: No 64-bit datatype on this platform\n");
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49 }
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50 #endif
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51 if (verbose && !error)
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52 printf("All data types are the expected size.\n");
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53
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54 return (error ? 1 : 0);
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55 }
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56
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57 int
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58 TestEndian(SDL_bool verbose)
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59 {
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60 int error = 0;
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61 Uint16 value = 0x1234;
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62 int real_byteorder;
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63 Uint16 value16 = 0xCDAB;
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64 Uint16 swapped16 = 0xABCD;
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65 Uint32 value32 = 0xEFBEADDE;
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66 Uint32 swapped32 = 0xDEADBEEF;
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67 #ifdef SDL_HAS_64BIT_TYPE
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68 Uint64 value64, swapped64;
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69 value64 = 0xEFBEADDE;
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70 value64 <<= 32;
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71 value64 |= 0xCDAB3412;
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72 swapped64 = 0x1234ABCD;
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73 swapped64 <<= 32;
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74 swapped64 |= 0xDEADBEEF;
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75 #endif
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76
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77 if (verbose) {
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78 printf("Detected a %s endian machine.\n",
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79 (SDL_BYTEORDER == SDL_LIL_ENDIAN) ? "little" : "big");
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80 }
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81 if ((*((char *) &value) >> 4) == 0x1) {
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82 real_byteorder = SDL_BIG_ENDIAN;
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83 } else {
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84 real_byteorder = SDL_LIL_ENDIAN;
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85 }
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86 if (real_byteorder != SDL_BYTEORDER) {
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87 if (verbose) {
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88 printf("Actually a %s endian machine!\n",
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89 (real_byteorder == SDL_LIL_ENDIAN) ? "little" : "big");
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90 }
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91 ++error;
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92 }
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93 if (verbose) {
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94 printf("Value 16 = 0x%X, swapped = 0x%X\n", value16,
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95 SDL_Swap16(value16));
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96 }
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97 if (SDL_Swap16(value16) != swapped16) {
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98 if (verbose) {
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99 printf("16 bit value swapped incorrectly!\n");
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100 }
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101 ++error;
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102 }
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103 if (verbose) {
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104 printf("Value 32 = 0x%X, swapped = 0x%X\n", value32,
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105 SDL_Swap32(value32));
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106 }
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107 if (SDL_Swap32(value32) != swapped32) {
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108 if (verbose) {
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109 printf("32 bit value swapped incorrectly!\n");
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110 }
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111 ++error;
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112 }
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113 #ifdef SDL_HAS_64BIT_TYPE
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114 if (verbose) {
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115 #ifdef _MSC_VER
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116 printf("Value 64 = 0x%I64X, swapped = 0x%I64X\n", value64,
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117 SDL_Swap64(value64));
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118 #else
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119 printf("Value 64 = 0x%llX, swapped = 0x%llX\n", value64,
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120 SDL_Swap64(value64));
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121 #endif
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122 }
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123 if (SDL_Swap64(value64) != swapped64) {
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124 if (verbose) {
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125 printf("64 bit value swapped incorrectly!\n");
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126 }
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127 ++error;
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128 }
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129 #endif
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130 return (error ? 1 : 0);
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131 }
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132
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133
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134 int
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135 TestCPUInfo(SDL_bool verbose)
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136 {
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137 if (verbose) {
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138 printf("CPU count: %d\n", SDL_GetCPUCount());
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139 printf("RDTSC %s\n", SDL_HasRDTSC()? "detected" : "not detected");
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140 printf("MMX %s\n", SDL_HasMMX()? "detected" : "not detected");
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141 printf("MMX Ext %s\n", SDL_HasMMXExt()? "detected" : "not detected");
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142 printf("3DNow %s\n", SDL_Has3DNow()? "detected" : "not detected");
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143 printf("3DNow Ext %s\n",
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144 SDL_Has3DNowExt()? "detected" : "not detected");
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145 printf("SSE %s\n", SDL_HasSSE()? "detected" : "not detected");
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146 printf("SSE2 %s\n", SDL_HasSSE2()? "detected" : "not detected");
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147 printf("AltiVec %s\n", SDL_HasAltiVec()? "detected" : "not detected");
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148 }
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149 return (0);
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150 }
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151
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152 int
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153 TestAssertions(SDL_bool verbose)
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154 {
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155 SDL_assert(1);
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156 SDL_assert_release(1);
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157 SDL_assert_paranoid(1);
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158 SDL_assert(0 || 1);
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159 SDL_assert_release(0 || 1);
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160 SDL_assert_paranoid(0 || 1);
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161
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162 #if 0 /* enable this to test assertion failures. */
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163 SDL_assert_release(1 == 2);
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164 SDL_assert_release(5 < 4);
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165 SDL_assert_release(0 && "This is a test");
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166 #endif
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167 SDL_assert_release(0 && "This is a test");
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168
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169 return (0);
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170 }
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171
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172 int
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173 main(int argc, char *argv[])
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174 {
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175 SDL_bool verbose = SDL_TRUE;
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176 int status = 0;
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177
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178 if (argv[1] && (SDL_strcmp(argv[1], "-q") == 0)) {
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179 verbose = SDL_FALSE;
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180 }
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181 if (verbose) {
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182 printf("This system is running %s\n", SDL_GetPlatform());
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183 }
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184
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185 status += TestTypes(verbose);
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186 status += TestEndian(verbose);
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187 status += TestCPUInfo(verbose);
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188 status += TestAssertions(verbose);
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189
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190 return status;
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191 }