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79
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1 #include "stdio.h"
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2
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3 void test2(double);
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4 void test1();
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82
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5 void print(double d);
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79
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6
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81
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7 extern double sin(double);
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84
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8 // extern float fsin(float);
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81
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9
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82
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10 float f = 0.3;
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11 double d = 0.3;
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12 float f1 = 0.3;
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13 double d1 = 0.3;
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84
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14 double d2 = -0.2;
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82
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15
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79
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16 int
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17 main(int ac,char *av[]) {
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82
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18 double g;
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19 int i;
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85
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20 unsigned u;
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82
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21
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22 g = 1.0;
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23 g = -g;
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84
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24 printf("%g\ncond ",g);
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25 if(f==f*1.0) printf("1 ");
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26 if(d==f*1.0) printf("2 ");
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27 if(f==f1) printf("3 ");
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28 if(d==d1) printf("4 ");
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29 if(d==d2) printf("-4 ");
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30 if(d>d1) printf("5 ");
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31 if(d>d2) printf("-5 ");
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32 if(d>=d1) printf("6 ");
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33 if(d>=d2) printf("-6 ");
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34 if(d!=d1) printf("7 ");
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35 if(d!=d2) printf("-7 ");
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36 if(d<d1) printf("8 ");
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37 if(d<d2) printf("-8 ");
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38 if(d<=d1) printf("9 ");
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39 if(d<=d2) printf("-9 ");
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85
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40 d = 123.4234; f=-234.333;
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82
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41 i = d;
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42 d = i;
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43 i = f;
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44 f = i;
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84
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45 printf("\n%d %g %f",i,d,f);
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82
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46 f = g = d = g = d = f;
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84
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47 printf(" %d %g %f %g\n",i,d,f,g);
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82
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48
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86
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49 d = 4204967294.4234; f=4204967294.4234;
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85
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50 u = d;
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51 d = u;
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52 u = f;
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53 f = u;
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54 printf("%u %g %f\n",u,d,f);
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55
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82
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56 print(1.0);
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57 print(0.1234);
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58 print(1.234e10);
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59 print(1.234e-10);
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60
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79
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61 test1();
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62 return 0;
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63 }
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64
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82
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65 void
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66 print(double d)
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67 {
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68 float f;
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69 int *dd;
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70
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71 f = d;
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72
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73 dd = (int*) &d;
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84
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74 printf("d %g ",d);
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82
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75 printf("dx %08x %08x\n",*(dd),*(dd+1));
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76
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77 dd = (int*) &f;
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84
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78 printf("f %g ",f);
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82
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79 printf("dx %08x \n",*(dd));
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80 }
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81
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81
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82 double
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83 testd(double i,double j)
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84 {
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85 return i+1.1+.0e3+12.3e-12;
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86 }
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87
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88 float
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89 testf(float i,float j)
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90 {
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91 return i+1;
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92 }
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93
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79
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94 void
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95 test1()
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96 {
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97 float f;
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98 float f1;
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99 double g;
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100 double g1;
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85
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101 float *pf;
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102 float *pf1;
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103 double *pg;
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104 double *pg1;
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105 int n = 1;
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79
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106
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107 f = 1.3;
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108
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109 g = 1.0;
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110 g = g+g;
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85
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111 printf("%d:%g\t",n++,g);
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79
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112 g1 = g*g;
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85
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113 printf("%d:%g\t",n++,g1);
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79
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114 g = g/g1;
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85
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115 printf("%d:%g\t",n++,g);
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79
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116 g = g-g1;
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85
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117 printf("%d:%g\t",n++,g);
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79
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118 g = sin(g1);
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85
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119 printf("%d:%g\t",n++,g);
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81
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120 g = testd(g,g1);
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85
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121 printf("%d:%g\t",n++,g);
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122 printf("\n");
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79
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123
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124 f = f+f;
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85
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125 printf("%d:%g\t",n++,f);
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79
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126 f1 = f*f;
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85
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127 printf("%d:%g\t",n++,f1);
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79
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128 f = f/f1;
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85
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129 printf("%d:%g\t",n++,f);
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79
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130 f = f-f1;
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85
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131 printf("%d:%g\t",n++,f);
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79
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132 f = sin(f1);
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85
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133 printf("%d:%g\t",n++,f);
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134 printf("\n");
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135
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86
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136 g1 = g;
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137 g1 = g1++ - ++g;
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138 printf("%d:%g\t",n++,g1);
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85
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139
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86
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140 f1 = f;
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141 f1 = f1++ - ++f;
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142 printf("%d:%g\t",n++,f1);
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79
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143
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144 g = f+f;
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85
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145 printf("%d:%g\t",n++,g);
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79
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146 f = g*g;
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85
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147 printf("%d:%g\t",n++,f);
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81
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148 f = testf(f,f1);
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85
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149 printf("%d:%g\t",n++,f);
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79
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150
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151 g = g*g+f*f-g1*g1;
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85
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152 printf("%d:%g\t",n++,g);
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153 printf("\n");
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79
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154
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85
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155 n=1;
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156 f = 1.3; pf=&f; pf1=&f1;
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157
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158 g = 1.0; pg=&g; pg1=&g1;
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159 *pg = *pg+ *pg;
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160 printf("%d:%g\t",n++,*pg);
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161 *pg1 = *pg**pg;
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162 printf("%d:%g\t",n++,*pg1);
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163 *pg = *pg/ *pg1;
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164 printf("%d:%g\t",n++,*pg);
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165 *pg = *pg-*pg1;
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166 printf("%d:%g\t",n++,*pg);
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167 *pg = sin(*pg1);
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168 printf("%d:%g\t",n++,*pg);
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169 *pg = testd(*pg,*pg1);
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170 printf("%d:%g\t",n++,*pg);
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171 printf("\n");
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172
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173 *pf = *pf+*pf;
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174 printf("%d:%g\t",n++,*pf);
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175 *pf1 = *pf**pf;
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176 printf("%d:%g\t",n++,*pf1);
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177 *pf = *pf/ *pf1;
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178 printf("%d:%g\t",n++,*pf);
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179 *pf = *pf-*pf1;
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180 printf("%d:%g\t",n++,*pf);
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181 *pf = sin(*pf1);
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182 printf("%d:%g\t",n++,*pf);
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183 printf("\n");
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184
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86
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185 *pg1 = *pg;
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186 *pg1 = (*pg1)++ - ++(*pg);
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187 printf("%d:%g\t",n++,*pg1);
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85
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188
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86
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189 *pf1 = *pf;
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190 *pf1 = (*pf1)++ - ++(*pf);
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191 printf("%d:%g\t",n++,*pf1);
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192
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85
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193
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194 *pg = *pf+*pf;
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195 printf("%d:%g\t",n++,*pg);
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196 *pf = *pg**pg;
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197 printf("%d:%g\t",n++,*pf);
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198 *pf = testf(*pf,*pf1);
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199 printf("%d:%g\t",n++,*pf);
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200
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201 *pg = *pg**pg+*pf**pf-*pg1**pg1;
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202 printf("%d:%g\t",n++,*pg);
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203 printf("\n");
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204
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205 n=1;
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206 f = 1.3;
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207 g = 1.0;
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208
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209 g *= 2*g;
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210 printf("%d:%g\t",n++,g);
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211 g /= 2*g;
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212 printf("%d:%g\t",n++,g);
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213 g -= 2*g;
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214 printf("%d:%g\t",n++,g);
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215 g += 2*g;
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216 printf("%d:%g\t",n++,g);
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217
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218 f *= 2*g;
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219 printf("%d:%g\t",n++,f);
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220 f /= 2*g;
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221 printf("%d:%g\t",n++,f);
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222 f -= 2*g;
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223 printf("%d:%g\t",n++,f);
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224 f += 2*g;
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225 printf("%d:%g\t",n++,f);
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226 printf("\n");
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227
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228 n=1;
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229 f = 1.3;
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230 g = 1.0;
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231
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232 *pg *= 2**pg;
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233 printf("%d:%g\t",n++,*pg);
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234 *pg /= 2**pg;
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235 printf("%d:%g\t",n++,*pg);
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236 *pg -= 2**pg;
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237 printf("%d:%g\t",n++,*pg);
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238 *pg += 2**pg;
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239 printf("%d:%g\t",n++,*pg);
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240
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241 *pf *= 2**pg;
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242 printf("%d:%g\t",n++,*pf);
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243 *pf /= 2**pg;
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244 printf("%d:%g\t",n++,*pf);
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245 *pf -= 2**pg;
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246 printf("%d:%g\t",n++,*pf);
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247 *pf += 2**pg;
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248 printf("%d:%g\t",n++,*pf);
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249 printf("\n");
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250
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251
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79
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252 return;
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253 }
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