src/functional/sscanf.c

   1 #include <stdio.h>
   2 #include <string.h>
   3 #include <limits.h>
   4 #include "test.h"
   5
   6 #define TEST(r, f, x, m) ( \
   7         ((r) = (f)) == (x) || \
   8         (t_error("%s failed (" m ")\n", #f, r, x), 0) )
   9
  10 #define TEST_S(s, x, m) ( \
  11         !strcmp((s),(x)) || \
  12         (t_error("[%s] != [%s] (%s)\n", s, x, m), 0) )
  13
  14 #define TEST_F(x) ( \
  15         TEST(i, sscanf(# x, "%lf", &d), 1, "got %d fields, expected %d"), \
  16         TEST(t, d, (double)x, "%g != %g") )
  17
  18 int main(void)
  19 {
  20         int i;
  21         char a[100], b[100];
  22         int x, y, z, u, v;
  23         double d, t;
  24
  25         TEST(i, sscanf("hello, world\n", "%s %s", a, b), 2, "only %d fields, expected %d");
  26         TEST_S(a, "hello,", "");
  27         TEST_S(b, "world", "");
  28
  29         TEST(i, sscanf("hello, world\n", "%[hel]%s", a, b), 2, "only %d fields, expected %d");
  30         TEST_S(a, "hell", "");
  31         TEST_S(b, "o,", "");
  32
  33         TEST(i, sscanf("hello, world\n", "%[hel] %s", a, b), 2, "only %d fields, expected %d");
  34         TEST_S(a, "hell", "");
  35         TEST_S(b, "o,", "");
  36
  37         a[8] = 'X';
  38         a[9] = 0;
  39         TEST(i, sscanf("hello, world\n", "%8c%8c", a, b), 1, "%d fields, expected %d");
  40         TEST_S(a, "hello, wX", "");
  41
  42         TEST(i, sscanf("56789 0123 56a72", "%2d%d%*d %[0123456789]\n", &x, &y, a), 3, "only %d fields, expected %d");
  43         TEST(i, x, 56, "%d != %d");
  44         TEST(i, y, 789, "%d != %d");
  45         TEST_S(a, "56", "");
  46
  47         TEST(i, sscanf("011 0x100 11 0x100 100", "%i %i %o %x %x\n", &x, &y, &z, &u, &v), 5, "only %d fields, expected %d");
  48         TEST(i, x, 9, "%d != %d");
  49         TEST(i, y, 256, "%d != %d");
  50         TEST(i, z, 9, "%d != %d");
  51         TEST(i, u, 256, "%d != %d");
  52         TEST(i, v, 256, "%d != %d");
  53
  54         TEST(i, sscanf("20 xyz", "%d %d\n", &x, &y), 1, "only %d fields, expected %d");
  55         TEST(i, x, 20, "%d != %d");
  56
  57         TEST(i, sscanf("xyz", "%d %d\n", &x, &y), 0, "got %d fields, expected no match (%d)");
  58
  59         TEST(i, sscanf("", "%d %d\n", &x, &y), -1, "got %d fields, expected input failure (%d)");
  60
  61         TEST(i, sscanf(" 12345 6", "%2d%d%d", &x, &y, &z), 3, "only %d fields, expected %d");
  62         TEST(i, x, 12, "%d != %d");
  63         TEST(i, y, 345, "%d != %d");
  64         TEST(i, z, 6, "%d != %d");
  65
  66         TEST(i, sscanf(" 0x12 0x34", "%5i%2i", &x, &y), 1, "got %d fields, expected %d");
  67         TEST(i, x, 0x12, "%d != %d");
  68
  69         TEST_F(123);
  70         TEST_F(123.0);
  71         TEST_F(123.0e+0);
  72         TEST_F(123.0e+4);
  73         TEST_F(1.234e1234);
  74         TEST_F(1.234e-1234);
  75         TEST_F(1.234e56789);
  76         TEST_F(1.234e-56789);
  77         TEST_F(-0.5);
  78         TEST_F(0.1);
  79         TEST_F(0.2);
  80         TEST_F(0.1e-10);
  81         TEST_F(0x1234p56);
  82
  83         TEST(i, sscanf("10e", "%lf", &d), 0, "got %d fields, expected no match (%d)");
  84         TEST(i, sscanf("", "%lf\n", &d), -1, "got %d fields, expected input failure (%d)");
  85         return t_status;
  86 }