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Differential D28938 Diff 84900 lib/libc/tests/stdio/printfloat_test.c

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lib/libc/tests/stdio/printfloat_test.c

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#include <atf-c.h> #include <atf-c.h>
static void static void
smash_stack(void) smash_stack(void)
{ {
static uint32_t junk = 0xdeadbeef; static uint32_t junk = 0xdeadbeef;
uint32_t buf[512]; uint32_t buf[512];
int i; size_t i;
for (i = 0; i < sizeof(buf) / sizeof(buf[0]); i++) for (i = 0; i < sizeof(buf) / sizeof(buf[0]); i++)
buf[i] = junk; buf[i] = junk;
} }
#define testfmt(result, fmt, ...) \ #define testfmt(result, fmt, ...) \
_testfmt((result), #__VA_ARGS__, fmt, __VA_ARGS__) _testfmt((result), #__VA_ARGS__, fmt, __VA_ARGS__)
static void static void
▲ Show 20 Lines • Show All 303 Lines • ▼ Show 20 LinesATF_TC_BODY(hexadecimal_rounding, tc)
testfmt("0x1.23456p+0", "%.5a", 0x1.23456789abcdep0); testfmt("0x1.23456p+0", "%.5a", 0x1.23456789abcdep0);
testfmt("0x1.234568p+0", "%.6a", 0x1.23456789abcdep0); testfmt("0x1.234568p+0", "%.6a", 0x1.23456789abcdep0);
testfmt("-0x1.234567p+0", "%.6a", -0x1.23456689abcdep0); testfmt("-0x1.234567p+0", "%.6a", -0x1.23456689abcdep0);
testfmt("0x1.00p-1029", "%.2a", 0x1.fffp-1030); testfmt("0x1.00p-1029", "%.2a", 0x1.fffp-1030);
testfmt("0x1.00p-1026", "%.2a", 0xf.fffp-1030); testfmt("0x1.00p-1026", "%.2a", 0xf.fffp-1030);
testfmt("0x1.83p+0", "%.2a", 1.51); testfmt("0x1.83p+0", "%.2a", 1.51);
} }
ATF_TC_WITHOUT_HEAD(subnormal_double);
ATF_TC_BODY(subnormal_double, tc)
{
/* Regression test for https://bugs.freebsd.org/253847 */
double positive = __DBL_DENORM_MIN__;
testfmt("4.9406564584124654418e-324", "%20.20g", positive);
testfmt("4.9406564584124654418E-324", "%20.20G", positive);
testfmt("0x1p-1074", "%a", positive);
testfmt("0X1P-1074", "%A", positive);
double negative = -__DBL_DENORM_MIN__;
testfmt("-4.9406564584124654418e-324", "%20.20g", negative);
testfmt("-4.9406564584124654418E-324", "%20.20G", negative);
testfmt("-0x1p-1074", "%a", negative);
testfmt("-0X1P-1074", "%A", negative);
}
ATF_TC_WITHOUT_HEAD(subnormal_float);
ATF_TC_BODY(subnormal_float, tc)
{
float positive = __FLT_DENORM_MIN__;
testfmt("1.4012984643248170709e-45", "%20.20g", positive);
testfmt("1.4012984643248170709E-45", "%20.20G", positive);
testfmt("0x1p-149", "%a", positive);
testfmt("0X1P-149", "%A", positive);
float negative = -__FLT_DENORM_MIN__;
testfmt("-1.4012984643248170709e-45", "%20.20g", negative);
testfmt("-1.4012984643248170709E-45", "%20.20G", negative);
testfmt("-0x1p-149", "%a", negative);
testfmt("-0X1P-149", "%A", negative);
}
ATF_TP_ADD_TCS(tp) ATF_TP_ADD_TCS(tp)
{ {
ATF_TP_ADD_TC(tp, float_within_limits); ATF_TP_ADD_TC(tp, float_within_limits);
ATF_TP_ADD_TC(tp, infinities_and_nans); ATF_TP_ADD_TC(tp, infinities_and_nans);
ATF_TP_ADD_TC(tp, padding); ATF_TP_ADD_TC(tp, padding);
ATF_TP_ADD_TC(tp, precision_specifiers); ATF_TP_ADD_TC(tp, precision_specifiers);
ATF_TP_ADD_TC(tp, thousands_separator_and_other_locale_tests); ATF_TP_ADD_TC(tp, thousands_separator_and_other_locale_tests);
ATF_TP_ADD_TC(tp, signed_conversions); ATF_TP_ADD_TC(tp, signed_conversions);
ATF_TP_ADD_TC(tp, alternate_form); ATF_TP_ADD_TC(tp, alternate_form);
ATF_TP_ADD_TC(tp, padding_and_decimal_point_placement); ATF_TP_ADD_TC(tp, padding_and_decimal_point_placement);
ATF_TP_ADD_TC(tp, decimal_rounding); ATF_TP_ADD_TC(tp, decimal_rounding);
ATF_TP_ADD_TC(tp, hexadecimal_floating_point); ATF_TP_ADD_TC(tp, hexadecimal_floating_point);
ATF_TP_ADD_TC(tp, hexadecimal_rounding); ATF_TP_ADD_TC(tp, hexadecimal_rounding);
ATF_TP_ADD_TC(tp, subnormal_double);
ATF_TP_ADD_TC(tp, subnormal_float);
return (atf_no_error()); return (atf_no_error());
} }