glibc/stdio-common/tst-fphex.c

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/* Test program for %a printf formats. */
#include <stdio.h>
#include <string.h>
struct testcase
{
double value;
const char *fmt;
const char *expect;
};
static const struct testcase testcases[] =
{
{ 0x0.0030p+0, "%a", "0x1.8p-11" },
{ 0x0.0040p+0, "%a", "0x1p-10" },
{ 0x0.0030p+0, "%040a", "0x00000000000000000000000000000001.8p-11" },
{ 0x0.0040p+0, "%040a", "0x0000000000000000000000000000000001p-10" },
{ 0x0.0040p+0, "%40a", " 0x1p-10" },
{ 0x0.0040p+0, "%#40a", " 0x1.p-10" },
{ 0x0.0040p+0, "%-40a", "0x1p-10 " },
{ 0x0.0040p+0, "%#-40a", "0x1.p-10 " },
{ 0x0.0030p+0, "%040e", "00000000000000000000000000007.324219e-04" },
{ 0x0.0040p+0, "%040e", "00000000000000000000000000009.765625e-04" },
};
static int
do_test (int argc, char **argv)
{
const struct testcase *t;
int result = 0;
for (t = testcases;
t < &testcases[sizeof testcases / sizeof testcases[0]];
++t)
{
char buf[1024];
int n = snprintf (buf, sizeof buf, t->fmt, t->value);
if (n != strlen (t->expect) || strcmp (buf, t->expect) != 0)
{
printf ("%s\tExpected \"%s\" (%u)\n\tGot \"%s\" (%d, %u)\n",
t->fmt, t->expect, strlen (t->expect), buf, n, strlen (buf));
result = 1;
}
}
return result;
}
#include "../test-skeleton.c"