328 lines
7.7 KiB
C
328 lines
7.7 KiB
C
#include <fenv.h>
|
|
#include <math.h>
|
|
#include <float.h>
|
|
#include <stdlib.h>
|
|
#include <stdio.h>
|
|
#include <math-tests.h>
|
|
|
|
#if !defined(FE_OVERFLOW) && !defined(FE_UNDERFLOW)
|
|
/* If there's no support for the exceptions this test is checking,
|
|
then just return success and allow the test to be compiled. */
|
|
# define fetestexcept(e) 1
|
|
#endif
|
|
|
|
float zero = 0.0;
|
|
float inf = INFINITY;
|
|
|
|
int
|
|
main (void)
|
|
{
|
|
int result = 0;
|
|
|
|
long double tl = (long double) FLT_MAX + 0x1.0p128L;
|
|
float fi = INFINITY;
|
|
float m = FLT_MAX;
|
|
feclearexcept (FE_ALL_EXCEPT);
|
|
if (nexttowardf (m, tl) != fi)
|
|
{
|
|
puts ("nexttowardf+ failed");
|
|
++result;
|
|
}
|
|
if (EXCEPTION_TESTS (float) && fetestexcept (FE_OVERFLOW) == 0)
|
|
{
|
|
puts ("nexttowardf+ did not overflow");
|
|
++result;
|
|
}
|
|
feclearexcept (FE_ALL_EXCEPT);
|
|
if (nexttowardf (-m, -tl) != -fi)
|
|
{
|
|
puts ("nexttowardf- failed");
|
|
++result;
|
|
}
|
|
if (EXCEPTION_TESTS (float) && fetestexcept (FE_OVERFLOW) == 0)
|
|
{
|
|
puts ("nexttowardf- did not overflow");
|
|
++result;
|
|
}
|
|
|
|
fi = 0;
|
|
m = FLT_MIN;
|
|
feclearexcept (FE_ALL_EXCEPT);
|
|
fi = nexttowardf (m, fi);
|
|
if (fi < 0 || fi >= FLT_MIN)
|
|
{
|
|
puts ("nexttowardf+ failed");
|
|
++result;
|
|
}
|
|
if (EXCEPTION_TESTS (float) && fetestexcept (FE_UNDERFLOW) == 0)
|
|
{
|
|
puts ("nexttowardf+ did not underflow");
|
|
++result;
|
|
}
|
|
fi = 0;
|
|
feclearexcept (FE_ALL_EXCEPT);
|
|
fi = nexttowardf (-m, -fi);
|
|
if (fi > 0 || fi <= -FLT_MIN)
|
|
{
|
|
puts ("nexttowardf- failed");
|
|
++result;
|
|
}
|
|
if (EXCEPTION_TESTS (float) && fetestexcept (FE_UNDERFLOW) == 0)
|
|
{
|
|
puts ("nexttowardf- did not underflow");
|
|
++result;
|
|
}
|
|
fi = -INFINITY;
|
|
feclearexcept (FE_ALL_EXCEPT);
|
|
m = nexttowardf (zero, inf);
|
|
if (m < 0.0 || m >= FLT_MIN)
|
|
{
|
|
puts ("nexttowardf+ failed");
|
|
++result;
|
|
}
|
|
if (EXCEPTION_TESTS (float) && fetestexcept (FE_UNDERFLOW) == 0)
|
|
{
|
|
puts ("nexttowardf+ did not underflow");
|
|
++result;
|
|
}
|
|
feclearexcept (FE_ALL_EXCEPT);
|
|
if (nexttowardf (m, fi) != 0.0)
|
|
{
|
|
puts ("nexttowardf+ failed");
|
|
++result;
|
|
}
|
|
if (EXCEPTION_TESTS (float) && fetestexcept (FE_UNDERFLOW) == 0)
|
|
{
|
|
puts ("nexttowardf+ did not underflow");
|
|
++result;
|
|
}
|
|
feclearexcept (FE_ALL_EXCEPT);
|
|
m = nexttowardf (copysignf (zero, -1.0), -inf);
|
|
if (m > 0.0 || m <= -FLT_MIN)
|
|
{
|
|
puts ("nexttowardf- failed");
|
|
++result;
|
|
}
|
|
if (EXCEPTION_TESTS (float) && fetestexcept (FE_UNDERFLOW) == 0)
|
|
{
|
|
puts ("nexttowardf- did not underflow");
|
|
++result;
|
|
}
|
|
feclearexcept (FE_ALL_EXCEPT);
|
|
if (nexttowardf (m, -fi) != 0.0)
|
|
{
|
|
puts ("nexttowardf- failed");
|
|
++result;
|
|
}
|
|
if (EXCEPTION_TESTS (float) && fetestexcept (FE_UNDERFLOW) == 0)
|
|
{
|
|
puts ("nexttowardf- did not underflow");
|
|
++result;
|
|
}
|
|
|
|
tl = (long double) DBL_MAX + 1.0e305L;
|
|
double di = INFINITY;
|
|
double dm = DBL_MAX;
|
|
feclearexcept (FE_ALL_EXCEPT);
|
|
if (nexttoward (dm, tl) != di)
|
|
{
|
|
puts ("nexttoward+ failed");
|
|
++result;
|
|
}
|
|
if (EXCEPTION_TESTS (double) && fetestexcept (FE_OVERFLOW) == 0)
|
|
{
|
|
puts ("nexttoward+ did not overflow");
|
|
++result;
|
|
}
|
|
feclearexcept (FE_ALL_EXCEPT);
|
|
if (nexttoward (-dm, -tl) != -di)
|
|
{
|
|
puts ("nexttoward- failed");
|
|
++result;
|
|
}
|
|
if (EXCEPTION_TESTS (double) && fetestexcept (FE_OVERFLOW) == 0)
|
|
{
|
|
puts ("nexttoward- did not overflow");
|
|
++result;
|
|
}
|
|
|
|
di = 0;
|
|
dm = DBL_MIN;
|
|
feclearexcept (FE_ALL_EXCEPT);
|
|
di = nexttoward (dm, di);
|
|
if (di < 0 || di >= DBL_MIN)
|
|
{
|
|
puts ("nexttoward+ failed");
|
|
++result;
|
|
}
|
|
if (EXCEPTION_TESTS (double) && fetestexcept (FE_UNDERFLOW) == 0)
|
|
{
|
|
puts ("nexttoward+ did not underflow");
|
|
++result;
|
|
}
|
|
di = 0;
|
|
feclearexcept (FE_ALL_EXCEPT);
|
|
di = nexttoward (-dm, -di);
|
|
if (di > 0 || di <= -DBL_MIN)
|
|
{
|
|
puts ("nexttoward- failed");
|
|
++result;
|
|
}
|
|
if (EXCEPTION_TESTS (double) && fetestexcept (FE_UNDERFLOW) == 0)
|
|
{
|
|
puts ("nexttoward- did not underflow");
|
|
++result;
|
|
}
|
|
di = -INFINITY;
|
|
feclearexcept (FE_ALL_EXCEPT);
|
|
dm = nexttoward (zero, inf);
|
|
if (dm < 0.0 || dm >= DBL_MIN)
|
|
{
|
|
puts ("nexttoward+ failed");
|
|
++result;
|
|
}
|
|
if (EXCEPTION_TESTS (double) && fetestexcept (FE_UNDERFLOW) == 0)
|
|
{
|
|
puts ("nexttoward+ did not underflow");
|
|
++result;
|
|
}
|
|
feclearexcept (FE_ALL_EXCEPT);
|
|
if (nexttoward (dm, di) != 0.0)
|
|
{
|
|
puts ("nexttoward+ failed");
|
|
++result;
|
|
}
|
|
if (EXCEPTION_TESTS (double) && fetestexcept (FE_UNDERFLOW) == 0)
|
|
{
|
|
puts ("nexttoward+ did not underflow");
|
|
++result;
|
|
}
|
|
feclearexcept (FE_ALL_EXCEPT);
|
|
dm = nexttoward (copysign (zero, -1.0), -inf);
|
|
if (dm > 0.0 || dm <= -DBL_MIN)
|
|
{
|
|
puts ("nexttoward- failed");
|
|
++result;
|
|
}
|
|
if (EXCEPTION_TESTS (double) && fetestexcept (FE_UNDERFLOW) == 0)
|
|
{
|
|
puts ("nexttoward- did not underflow");
|
|
++result;
|
|
}
|
|
feclearexcept (FE_ALL_EXCEPT);
|
|
if (nexttoward (dm, -di) != 0.0)
|
|
{
|
|
puts ("nexttoward- failed");
|
|
++result;
|
|
}
|
|
if (EXCEPTION_TESTS (double) && fetestexcept (FE_UNDERFLOW) == 0)
|
|
{
|
|
puts ("nexttoward- did not underflow");
|
|
++result;
|
|
}
|
|
|
|
#ifndef NO_LONG_DOUBLE
|
|
long double li = INFINITY;
|
|
long double lm = LDBL_MAX;
|
|
feclearexcept (FE_ALL_EXCEPT);
|
|
if (nexttowardl (lm, li) != li)
|
|
{
|
|
puts ("nexttowardl+ failed");
|
|
++result;
|
|
}
|
|
if (EXCEPTION_TESTS (long double) && fetestexcept (FE_OVERFLOW) == 0)
|
|
{
|
|
puts ("nexttowardl+ did not overflow");
|
|
++result;
|
|
}
|
|
feclearexcept (FE_ALL_EXCEPT);
|
|
if (nexttowardl (-lm, -li) != -li)
|
|
{
|
|
puts ("nexttowardl failed");
|
|
++result;
|
|
}
|
|
if (EXCEPTION_TESTS (long double) && fetestexcept (FE_OVERFLOW) == 0)
|
|
{
|
|
puts ("nexttowardl- did not overflow");
|
|
++result;
|
|
}
|
|
|
|
li = 0;
|
|
lm = LDBL_MIN;
|
|
feclearexcept (FE_ALL_EXCEPT);
|
|
li = nexttowardl (lm, li);
|
|
if (li < 0 || li >= LDBL_MIN)
|
|
{
|
|
puts ("nexttowardl+ failed");
|
|
++result;
|
|
}
|
|
if (EXCEPTION_TESTS (long double) && fetestexcept (FE_UNDERFLOW) == 0)
|
|
{
|
|
puts ("nexttowardl+ did not underflow");
|
|
++result;
|
|
}
|
|
li = 0;
|
|
feclearexcept (FE_ALL_EXCEPT);
|
|
li = nexttowardl (-lm, -li);
|
|
if (li > 0 || li <= -LDBL_MIN)
|
|
{
|
|
puts ("nexttowardl- failed");
|
|
++result;
|
|
}
|
|
if (EXCEPTION_TESTS (long double) && fetestexcept (FE_UNDERFLOW) == 0)
|
|
{
|
|
puts ("nexttowardl- did not underflow");
|
|
++result;
|
|
}
|
|
li = -INFINITY;
|
|
feclearexcept (FE_ALL_EXCEPT);
|
|
lm = nexttowardl (zero, inf);
|
|
if (lm < 0.0 || lm >= LDBL_MIN)
|
|
{
|
|
puts ("nexttowardl+ failed");
|
|
++result;
|
|
}
|
|
if (EXCEPTION_TESTS (long double) && fetestexcept (FE_UNDERFLOW) == 0)
|
|
{
|
|
puts ("nexttowardl+ did not underflow");
|
|
++result;
|
|
}
|
|
feclearexcept (FE_ALL_EXCEPT);
|
|
if (nexttowardl (lm, li) != 0.0)
|
|
{
|
|
puts ("nexttowardl+ failed");
|
|
++result;
|
|
}
|
|
if (EXCEPTION_TESTS (long double) && fetestexcept (FE_UNDERFLOW) == 0)
|
|
{
|
|
puts ("nexttowardl+ did not underflow");
|
|
++result;
|
|
}
|
|
feclearexcept (FE_ALL_EXCEPT);
|
|
lm = nexttowardl (copysign (zero, -1.0), -inf);
|
|
if (lm > 0.0 || lm <= -LDBL_MIN)
|
|
{
|
|
puts ("nexttowardl- failed");
|
|
++result;
|
|
}
|
|
if (EXCEPTION_TESTS (long double) && fetestexcept (FE_UNDERFLOW) == 0)
|
|
{
|
|
puts ("nexttowardl- did not underflow");
|
|
++result;
|
|
}
|
|
feclearexcept (FE_ALL_EXCEPT);
|
|
if (nexttowardl (lm, -li) != 0.0)
|
|
{
|
|
puts ("nexttowardl- failed");
|
|
++result;
|
|
}
|
|
if (EXCEPTION_TESTS (long double) && fetestexcept (FE_UNDERFLOW) == 0)
|
|
{
|
|
puts ("nexttowardl- did not underflow");
|
|
++result;
|
|
}
|
|
#endif
|
|
|
|
return result;
|
|
}
|