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ORCA-C/Tests/Conformance/c99fpclass.c

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Add a set of new tests for C95/C99/C11 features that we now support. These are currently only run by the new DOIT3 test-running script. Note that these tests are designed to be applicable to most implementations of C95/C99/C11, not just ORCA/C. They do make certain assumptions not guaranteed by the standards (e.g. power of 2 types and some properties of IEEE-like FP), but in general those assumptions should be true for most 'normal' systems.
2021-08-22 20:03:54 +00:00
/*
* Test floating-point classification macros (C99).
*/
#include <float.h>
#include <math.h>
#include <stdio.h>
int main(void) {
float f;
double d;
long double ld;
// These tests assume IEEE-like floating-point behavior.
/* float tests */
f = INFINITY;
if (fpclassify(f) != FP_INFINITE)
goto Fail;
if (!isinf(f) || isfinite(f) || isnan(f) || isnormal(f))
goto Fail;
if (signbit(f) != 0)
goto Fail;
f = NAN;
if (fpclassify(f) != FP_NAN)
goto Fail;
if (isinf(f) || isfinite(f) || !isnan(f) || isnormal(f))
goto Fail;
f = 1.0;
if (fpclassify(f) != FP_NORMAL)
goto Fail;
if (isinf(f) || !isfinite(f) || isnan(f) || !isnormal(f))
goto Fail;
if (signbit(f) != 0)
goto Fail;
f = FLT_MIN;
if (fpclassify(f) != FP_NORMAL)
goto Fail;
if (isinf(f) || !isfinite(f) || isnan(f) || !isnormal(f))
goto Fail;
if (signbit(f) != 0)
goto Fail;
f = FLT_MAX;
if (fpclassify(f) != FP_NORMAL)
goto Fail;
if (isinf(f) || !isfinite(f) || isnan(f) || !isnormal(f))
goto Fail;
if (signbit(f) != 0)
goto Fail;
f = 0.0;
if (fpclassify(f) != FP_ZERO)
goto Fail;
if (isinf(f) || !isfinite(f) || isnan(f) || isnormal(f))
goto Fail;
if (signbit(f) != 0)
goto Fail;
f = FLT_MIN / 2.0;
if (fpclassify(f) != FP_SUBNORMAL)
goto Fail;
if (isinf(f) || !isfinite(f) || isnan(f) || isnormal(f))
goto Fail;
if (signbit(f) != 0)
goto Fail;
f = -INFINITY;
if (signbit(f) == 0)
goto Fail;
f = -1.0;
if (signbit(f) == 0)
goto Fail;
/* double tests */
d = INFINITY;
if (fpclassify(d) != FP_INFINITE)
goto Fail;
if (!isinf(d) || isfinite(d) || isnan(d) || isnormal(d))
goto Fail;
if (signbit(d) != 0)
goto Fail;
d = NAN;
if (fpclassify(d) != FP_NAN)
goto Fail;
if (isinf(d) || isfinite(d) || !isnan(d) || isnormal(d))
goto Fail;
d = 1.0;
if (fpclassify(d) != FP_NORMAL)
goto Fail;
if (isinf(d) || !isfinite(d) || isnan(d) || !isnormal(d))
goto Fail;
if (signbit(d) != 0)
goto Fail;
d = DBL_MIN;
if (fpclassify(d) != FP_NORMAL)
goto Fail;
if (isinf(d) || !isfinite(d) || isnan(d) || !isnormal(d))
goto Fail;
if (signbit(d) != 0)
goto Fail;
d = DBL_MAX;
if (fpclassify(d) != FP_NORMAL)
goto Fail;
if (isinf(d) || !isfinite(d) || isnan(d) || !isnormal(d))
goto Fail;
if (signbit(d) != 0)
goto Fail;
d = 0.0;
if (fpclassify(d) != FP_ZERO)
goto Fail;
if (isinf(d) || !isfinite(d) || isnan(d) || isnormal(d))
goto Fail;
if (signbit(d) != 0)
goto Fail;
d = DBL_MIN / 2.0;
if (fpclassify(d) != FP_SUBNORMAL)
goto Fail;
if (isinf(d) || !isfinite(d) || isnan(d) || isnormal(d))
goto Fail;
if (signbit(d) != 0)
goto Fail;
d = -INFINITY;
if (signbit(d) == 0)
goto Fail;
d = -1.0;
if (signbit(d) == 0)
goto Fail;
/* long double tests */
ld = INFINITY;
if (fpclassify(ld) != FP_INFINITE)
goto Fail;
if (!isinf(ld) || isfinite(ld) || isnan(ld) || isnormal(ld))
goto Fail;
if (signbit(ld) != 0)
goto Fail;
ld = NAN;
if (fpclassify(ld) != FP_NAN)
goto Fail;
if (isinf(ld) || isfinite(ld) || !isnan(ld) || isnormal(ld))
goto Fail;
ld = 1.0;
if (fpclassify(ld) != FP_NORMAL)
goto Fail;
if (isinf(ld) || !isfinite(ld) || isnan(ld) || !isnormal(ld))
goto Fail;
if (signbit(ld) != 0)
goto Fail;
ld = LDBL_MIN;
if (fpclassify(ld) != FP_NORMAL)
goto Fail;
if (isinf(ld) || !isfinite(ld) || isnan(ld) || !isnormal(ld))
goto Fail;
if (signbit(ld) != 0)
goto Fail;
ld = LDBL_MAX;
if (fpclassify(ld) != FP_NORMAL)
goto Fail;
if (isinf(ld) || !isfinite(ld) || isnan(ld) || !isnormal(ld))
goto Fail;
if (signbit(ld) != 0)
goto Fail;
ld = 0.0;
if (fpclassify(ld) != FP_ZERO)
goto Fail;
if (isinf(ld) || !isfinite(ld) || isnan(ld) || isnormal(ld))
goto Fail;
if (signbit(ld) != 0)
goto Fail;
ld = LDBL_MIN / 2.0;
if (fpclassify(ld) != FP_SUBNORMAL)
goto Fail;
if (isinf(ld) || !isfinite(ld) || isnan(ld) || isnormal(ld))
goto Fail;
if (signbit(ld) != 0)
goto Fail;
ld = -INFINITY;
if (signbit(ld) == 0)
goto Fail;
ld = -1.0;
if (signbit(ld) == 0)
goto Fail;
printf ("Passed Conformance Test c99fpclass\n");
return 0;
Fail:
printf ("Failed Conformance Test c99fpclass\n");
}
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