glibc/stdlib/tst-strtod2.c

45 lines
844 B
C

#include <stdio.h>
#include <stdlib.h>
struct test
{
const char *str;
double result;
size_t offset;
} tests[] =
{
{ "0xy", 0.0, 1 },
{ "0x.y", 0.0, 1 },
{ "0x0.y", 0.0, 4 },
{ "0x.0y", 0.0, 4 },
{ ".y", 0.0, 0 },
{ "0.y", 0.0, 2 },
{ ".0y", 0.0, 2 }
};
static int
do_test (void)
{
int status = 0;
for (size_t i = 0; i < sizeof (tests) / sizeof (tests[0]); ++i)
{
char *ep;
double r = strtod (tests[i].str, &ep);
if (r != tests[i].result)
{
printf ("test %zu r = %g, expect %g\n", i, r, tests[i].result);
status = 1;
}
if (ep != tests[i].str + tests[i].offset)
{
printf ("test %zu strtod parsed %tu characters, expected %zu\n",
i, ep - tests[i].str, tests[i].offset);
status = 1;
}
}
return status;
}
#define TEST_FUNCTION do_test ()
#include "../test-skeleton.c"