1#include <stdio.h>
2#include <stdlib.h>
3
4struct test
5{
6 const char *str;
7 double result;
8 size_t offset;
9} tests[] =
10{
11 { "0xy", 0.0, 1 },
12 { "0x.y", 0.0, 1 },
13 { "0x0.y", 0.0, 4 },
14 { "0x.0y", 0.0, 4 },
15 { ".y", 0.0, 0 },
16 { "0.y", 0.0, 2 },
17 { ".0y", 0.0, 2 }
18};
19
20static int
21do_test (void)
22{
23 int status = 0;
24 for (size_t i = 0; i < sizeof (tests) / sizeof (tests[0]); ++i)
25 {
26 char *ep;
27 double r = strtod (tests[i].str, &ep);
28 if (r != tests[i].result)
29 {
30 printf (format: "test %zu r = %g, expect %g\n", i, r, tests[i].result);
31 status = 1;
32 }
33 if (ep != tests[i].str + tests[i].offset)
34 {
35 printf (format: "test %zu strtod parsed %tu characters, expected %zu\n",
36 i, ep - tests[i].str, tests[i].offset);
37 status = 1;
38 }
39 }
40 return status;
41}
42
43#define TEST_FUNCTION do_test ()
44#include "../test-skeleton.c"
45

source code of glibc/stdlib/tst-strtod2.c