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111
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1 #include <limits.h>
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2
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3 extern void abort ();
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4
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5 int test1(int x)
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6 {
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7 return x ^ INT_MIN;
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8 }
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9
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10 unsigned int test1u(unsigned int x)
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11 {
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12 return x ^ (unsigned int)INT_MIN;
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13 }
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14
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15 unsigned int test2u(unsigned int x)
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16 {
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17 return x + (unsigned int)INT_MIN;
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18 }
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19
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20 unsigned int test3u(unsigned int x)
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21 {
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22 return x - (unsigned int)INT_MIN;
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23 }
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24
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25 int test4(int x)
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26 {
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27 int y = INT_MIN;
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28 return x ^ y;
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29 }
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30
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31 unsigned int test4u(unsigned int x)
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32 {
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33 unsigned int y = (unsigned int)INT_MIN;
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34 return x ^ y;
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35 }
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36
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37 unsigned int test5u(unsigned int x)
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38 {
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39 unsigned int y = (unsigned int)INT_MIN;
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40 return x + y;
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41 }
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42
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43 unsigned int test6u(unsigned int x)
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44 {
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45 unsigned int y = (unsigned int)INT_MIN;
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46 return x - y;
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47 }
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48
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49
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50
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51 void test(int a, int b)
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52 {
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53 if (test1(a) != b)
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54 abort();
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55 if (test4(a) != b)
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56 abort();
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57 }
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58
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59 void testu(unsigned int a, unsigned int b)
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60 {
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61 if (test1u(a) != b)
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62 abort();
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63 if (test2u(a) != b)
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64 abort();
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65 if (test3u(a) != b)
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66 abort();
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67 if (test4u(a) != b)
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68 abort();
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69 if (test5u(a) != b)
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70 abort();
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71 if (test6u(a) != b)
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72 abort();
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73 }
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74
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75
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76 int main()
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77 {
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78 #if INT_MAX == 2147483647
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79 test(0x00000000,0x80000000);
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80 test(0x80000000,0x00000000);
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81 test(0x12345678,0x92345678);
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82 test(0x92345678,0x12345678);
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83 test(0x7fffffff,0xffffffff);
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84 test(0xffffffff,0x7fffffff);
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85
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86 testu(0x00000000,0x80000000);
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87 testu(0x80000000,0x00000000);
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88 testu(0x12345678,0x92345678);
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89 testu(0x92345678,0x12345678);
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90 testu(0x7fffffff,0xffffffff);
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91 testu(0xffffffff,0x7fffffff);
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92 #endif
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93
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94 #if INT_MAX == 32767
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95 test(0x0000,0x8000);
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96 test(0x8000,0x0000);
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97 test(0x1234,0x9234);
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98 test(0x9234,0x1234);
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99 test(0x7fff,0xffff);
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100 test(0xffff,0x7fff);
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101
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102 testu(0x0000,0x8000);
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103 testu(0x8000,0x0000);
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104 testu(0x1234,0x9234);
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105 testu(0x9234,0x1234);
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106 testu(0x7fff,0xffff);
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107 testu(0xffff,0x7fff);
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108 #endif
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109
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110 return 0;
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111 }
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112
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