test/clib/strtod.c

   1 #include <stdlib.h>
   2 #include <stdio.h>
   3
   4 const char * strings [] =
   5 {
   6     "1e1",
   7     "1.2e2",
   8     ".1e3",
   9     ".e4",
  10     "exp",
  11     "e",
  12     "12e ",
  13     "12.1ef",
  14     "12.e1",
  15     "12.e",
  16     "10.",
  17     "10e+2",
  18     "1000e-2",
  19     "20e+ ",
  20     "20e- ",
  21     "-exp",
  22     "+dummy",
  23     "+10",
  24     "-12.1e",
  25     "-.e+4",
  26     "-.1e+3",
  27     NULL
  28 };
  29
  30 const double results [] =
  31 {
  32     10.0,
  33     120.0,
  34     100.0,
  35     0.0,
  36     0.0,
  37     0.0,
  38     12.0,
  39     12.1,
  40     120,
  41     12,
  42     10,
  43     1000,
  44     10,
  45     20,
  46     20,
  47     0,
  48     0,
  49     10.0,
  50     -12.1,
  51     0,
  52     -100.0,
  53 };
  54
  55 const int ptroffset [] =
  56 {
  57     3,
  58     5,
  59     4,
  60     0,
  61     0,
  62     0,
  63     2,
  64     4,
  65     5,
  66     3,
  67     3,
  68     5,
  69     7,
  70     2,
  71     2,
  72     0,
  73     0,
  74     3,
  75     5,
  76     0,
  77     6
  78 };
  79
  80 const char * newlinetest_rn = "\t-2.700264 -1.792122 -2.037897\r\n\t-0.084267 0.081827 0.584534\r\n";
  81 const char * newlinetest_n = "\t-2.700264 -1.792122 -2.037897\n\t-0.084267 0.081827 0.584534\n";
  82
  83 const double newlinetestresults [] =
  84 {
  85     -2.700264,
  86     -1.792122,
  87     -2.037897,
  88     -0.084267,
  89     0.081827,
  90     0.584534,
  91     0.000000
  92 };
  93
  94 const int newlinetestptroffset_rn [] =
  95 {
  96     10,
  97     10,
  98     10,
  99     12,
 100     9,
 101     9,
 102     0,
 103     -1,
 104     -1
 105 };
 106
 107 const int newlinetestptroffset_n [] =
 108 {
 109     10,
 110     10,
 111     10,
 112     11,
 113     9,
 114     9,
 115     0,
 116     -1,
 117     -1
 118 };
 119
 120 #define TESTLINELINE_I  6
 121
 122 void testnewline(const char * buffer, const int * ptroffset)
 123 {
 124     int i = 0; char * src = NULL; char *next;
 125     for(src = (char *)buffer; i < (TESTLINELINE_I + 2); i++, src = next)
 126     {
 127         double f = strtod(src, &next);
 128         if ((float)newlinetestresults[i] != (float)f)
 129             printf("RESULT FAILURE @ %s, should be %f was %f\n", src, newlinetestresults[i], f);
 130         if (ptroffset[i] != (next - src))
 131             printf("OFFSET FAILURE @ %s, should be %d was %d\n", src, ptroffset[i], (int)(next - src));
 132         if(next <= src) break;
 133     }
 134
 135     if (TESTLINELINE_I != i)
 136         printf("ITER FAILURE @ %s, should be %d was %d\n", buffer, TESTLINELINE_I, i);
 137 }
 138
 139 int main()
 140 {
 141     char * float_end = NULL;
 142     double f = 0;
 143     int i = 0;
 144     const char * str = NULL;
 145
 146     while((str = strings[i]) != NULL)
 147     {
 148         f = strtod(str, &float_end);
 149         if (f != results[i])
 150             printf("RESULT FAILURE @ %s, should be %f was %f\n", str, results[i], f);
 151         if ((float_end - str) != ptroffset[i])
 152             printf("OFFSET FAILURE @ %s, should be %d was %d\n", str, ptroffset[i], (int)(float_end - str));
 153         i++;
 154     }
 155
 156     /* Check bahavior with new-lined strings */
 157     testnewline(newlinetest_rn, newlinetestptroffset_rn);
 158     testnewline(newlinetest_n, newlinetestptroffset_n);
 159
 160     return 0;
 161 }