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Refactor bug-strtod.c to better test new types.

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This introduces tst-strtod.h to contain some macros
to assist with updating strto{f,d,ld} test code to
support additional variants of this function.
This commit is contained in:
Paul E. Murphy
2016-05-06 16:00:39 -05:00
parent bc779a1a5b
commit dba0832af1
3 changed files with 96 additions and 65 deletions
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104
stdlib/bug-strtod.c
View File

@ -21,73 +21,47 @@
#include <stdlib.h>
#include <string.h>
#include "tst-strtod.h"
#define TEST_STRTOD(FSUF, FTYPE, FTOSTR, FTOSTRM, LSUF, CSUF) \
static int \
test_strto ## FSUF (void) \
{ \
char buf[300]; \
int cnt; \
int result = 0; \
\
for (cnt = 0; cnt < 200; ++cnt) \
{ \
ssize_t n; \
FTYPE f; \
\
n = sprintf (buf, "%d", cnt); \
memset (buf + n, '0', cnt); \
sprintf (buf + n + cnt, ".000e-%d", cnt); \
f = strto ## FSUF (buf, NULL); \
\
if (f != (FTYPE) cnt) \
{ \
char fstr[FSTRLENMAX]; \
char fcntstr[FSTRLENMAX]; \
FTOSTR (fstr, sizeof (fstr), "%" FTOSTRM "g", f); \
FTOSTR (fcntstr, sizeof (fstr), "%" FTOSTRM "g", (FTYPE) cnt); \
printf ("strto" #FSUF "(\"%s\") " \
"failed for cnt == %d (%s instead of %s)\n", \
buf, cnt, fstr, fcntstr); \
result = 1; \
} \
else \
printf ( "strto" #FSUF "() fine for cnt == %d\n", cnt); \
} \
return result; \
}
GEN_TEST_STRTOD_FOREACH (TEST_STRTOD)
int
main (void)
{
char buf[300];
int cnt;
int result = 0;
for (cnt = 0; cnt < 200; ++cnt)
{
ssize_t n;
float f;
n = sprintf (buf, "%d", cnt);
memset (buf + n, '0', cnt);
sprintf (buf + n + cnt, ".000e-%d", cnt);
f = strtof (buf, NULL);
if (f != (float) cnt)
{
printf ("strtof(\"%s\") failed for cnt == %d (%g instead of %g)\n",
buf, cnt, f, (float) cnt);
result = 1;
}
else
printf ("strtof() fine for cnt == %d\n", cnt);
}
for (cnt = 0; cnt < 200; ++cnt)
{
ssize_t n;
double f;
n = sprintf (buf, "%d", cnt);
memset (buf + n, '0', cnt);
sprintf (buf + n + cnt, ".000e-%d", cnt);
f = strtod (buf, NULL);
if (f != (double) cnt)
{
printf ("strtod(\"%s\") failed for cnt == %d (%g instead of %g)\n",
buf, cnt, f, (double) cnt);
result = 1;
}
else
printf ("strtod() fine for cnt == %d\n", cnt);
}
for (cnt = 0; cnt < 200; ++cnt)
{
ssize_t n;
long double f;
n = sprintf (buf, "%d", cnt);
memset (buf + n, '0', cnt);
sprintf (buf + n + cnt, ".000e-%d", cnt);
f = strtold (buf, NULL);
if (f != (long double) cnt)
{
printf ("strtold(\"%s\") failed for cnt == %d (%Lg instead of %Lg)\n",
buf, cnt, f, (long double) cnt);
result = 1;
}
else
printf ("strtold() fine for cnt == %d\n", cnt);
}
return result;
return STRTOD_TEST_FOREACH (test_strto);
}