0af797def3
For some tests, just claim that fetestexcept() always returns true, so the rest of the test can be compiled. For libm-test, provide known bogus values for unsupported rounding modes, so fesetround() will return failure. Elsewhere, just add some #ifdefs to avoid code that uses particular FP exceptions if the exceptions aren't supported.
325 lines
6.8 KiB
C
325 lines
6.8 KiB
C
#include <fenv.h>
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#include <math.h>
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#include <float.h>
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#include <stdlib.h>
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#include <stdio.h>
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#if !defined(FE_OVERFLOW) && !defined(FE_UNDERFLOW)
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/* If there's no support for the exceptions this test is checking,
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then just return success and allow the test to be compiled. */
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# define fetestexcept(e) 1
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#endif
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float zero = 0.0;
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float inf = INFINITY;
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int
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main (void)
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{
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int result = 0;
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float i = INFINITY;
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float m = FLT_MAX;
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feclearexcept (FE_ALL_EXCEPT);
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if (nextafterf (m, i) != i)
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{
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puts ("nextafterf+ failed");
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++result;
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}
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if (fetestexcept (FE_OVERFLOW) == 0)
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{
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puts ("nextafterf+ did not overflow");
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++result;
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}
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feclearexcept (FE_ALL_EXCEPT);
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if (nextafterf (-m, -i) != -i)
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{
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puts ("nextafterf- failed");
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++result;
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}
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if (fetestexcept (FE_OVERFLOW) == 0)
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{
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puts ("nextafterf- did not overflow");
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++result;
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}
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i = 0;
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m = FLT_MIN;
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feclearexcept (FE_ALL_EXCEPT);
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i = nextafterf (m, i);
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if (i < 0 || i >= FLT_MIN)
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{
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puts ("nextafterf+ failed");
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++result;
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}
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if (fetestexcept (FE_UNDERFLOW) == 0)
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{
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puts ("nextafterf+ did not underflow");
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++result;
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}
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i = 0;
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feclearexcept (FE_ALL_EXCEPT);
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i = nextafterf (-m, -i);
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if (i > 0 || i <= -FLT_MIN)
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{
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puts ("nextafterf- failed");
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++result;
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}
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if (fetestexcept (FE_UNDERFLOW) == 0)
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{
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puts ("nextafterf- did not underflow");
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++result;
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}
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i = -INFINITY;
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feclearexcept (FE_ALL_EXCEPT);
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m = nextafterf (zero, inf);
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if (m < 0.0 || m >= FLT_MIN)
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{
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puts ("nextafterf+ failed");
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++result;
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}
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if (fetestexcept (FE_UNDERFLOW) == 0)
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{
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puts ("nextafterf+ did not underflow");
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++result;
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}
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feclearexcept (FE_ALL_EXCEPT);
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if (nextafterf (m, i) != 0.0)
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{
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puts ("nextafterf+ failed");
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++result;
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}
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if (fetestexcept (FE_UNDERFLOW) == 0)
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{
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puts ("nextafterf+ did not underflow");
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++result;
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}
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feclearexcept (FE_ALL_EXCEPT);
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m = nextafterf (copysignf (zero, -1.0), -inf);
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if (m > 0.0 || m <= -FLT_MIN)
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{
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puts ("nextafterf- failed");
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++result;
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}
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if (fetestexcept (FE_UNDERFLOW) == 0)
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{
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puts ("nextafterf- did not underflow");
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++result;
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}
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feclearexcept (FE_ALL_EXCEPT);
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if (nextafterf (m, -i) != 0.0)
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{
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puts ("nextafterf- failed");
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++result;
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}
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if (fetestexcept (FE_UNDERFLOW) == 0)
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{
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puts ("nextafterf- did not underflow");
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++result;
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}
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double di = INFINITY;
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double dm = DBL_MAX;
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feclearexcept (FE_ALL_EXCEPT);
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if (nextafter (dm, di) != di)
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{
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puts ("nextafter+ failed");
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++result;
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}
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if (fetestexcept (FE_OVERFLOW) == 0)
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{
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puts ("nextafter+ did not overflow");
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++result;
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}
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feclearexcept (FE_ALL_EXCEPT);
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if (nextafter (-dm, -di) != -di)
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{
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puts ("nextafter failed");
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++result;
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}
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if (fetestexcept (FE_OVERFLOW) == 0)
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{
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puts ("nextafter- did not overflow");
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++result;
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}
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di = 0;
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dm = DBL_MIN;
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feclearexcept (FE_ALL_EXCEPT);
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di = nextafter (dm, di);
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if (di < 0 || di >= DBL_MIN)
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{
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puts ("nextafter+ failed");
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++result;
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}
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if (fetestexcept (FE_UNDERFLOW) == 0)
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{
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puts ("nextafter+ did not underflow");
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++result;
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}
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di = 0;
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feclearexcept (FE_ALL_EXCEPT);
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di = nextafter (-dm, -di);
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if (di > 0 || di <= -DBL_MIN)
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{
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puts ("nextafter- failed");
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++result;
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}
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if (fetestexcept (FE_UNDERFLOW) == 0)
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{
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puts ("nextafter- did not underflow");
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++result;
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}
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di = -INFINITY;
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feclearexcept (FE_ALL_EXCEPT);
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dm = nextafter (zero, inf);
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if (dm < 0.0 || dm >= DBL_MIN)
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{
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puts ("nextafter+ failed");
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++result;
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}
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if (fetestexcept (FE_UNDERFLOW) == 0)
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{
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puts ("nextafter+ did not underflow");
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++result;
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}
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feclearexcept (FE_ALL_EXCEPT);
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if (nextafter (dm, di) != 0.0)
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{
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puts ("nextafter+ failed");
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++result;
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}
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if (fetestexcept (FE_UNDERFLOW) == 0)
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{
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puts ("nextafter+ did not underflow");
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++result;
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}
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feclearexcept (FE_ALL_EXCEPT);
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dm = nextafter (copysign (zero, -1.0), -inf);
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if (dm > 0.0 || dm <= -DBL_MIN)
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{
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puts ("nextafter- failed");
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++result;
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}
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if (fetestexcept (FE_UNDERFLOW) == 0)
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{
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puts ("nextafter- did not underflow");
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++result;
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}
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feclearexcept (FE_ALL_EXCEPT);
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if (nextafter (dm, -di) != 0.0)
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{
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puts ("nextafter- failed");
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++result;
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}
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if (fetestexcept (FE_UNDERFLOW) == 0)
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{
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puts ("nextafter- did not underflow");
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++result;
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}
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#ifndef NO_LONG_DOUBLE
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long double li = INFINITY;
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long double lm = LDBL_MAX;
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feclearexcept (FE_ALL_EXCEPT);
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if (nextafterl (lm, li) != li)
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{
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puts ("nextafterl+ failed");
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++result;
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}
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if (fetestexcept (FE_OVERFLOW) == 0)
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{
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puts ("nextafterl+ did not overflow");
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++result;
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}
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feclearexcept (FE_ALL_EXCEPT);
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if (nextafterl (-lm, -li) != -li)
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{
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puts ("nextafterl failed");
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++result;
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}
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if (fetestexcept (FE_OVERFLOW) == 0)
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{
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puts ("nextafterl- did not overflow");
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++result;
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}
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li = 0;
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lm = LDBL_MIN;
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feclearexcept (FE_ALL_EXCEPT);
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li = nextafterl (lm, li);
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if (li < 0 || li >= LDBL_MIN)
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{
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puts ("nextafterl+ failed");
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++result;
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}
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if (fetestexcept (FE_UNDERFLOW) == 0)
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{
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puts ("nextafterl+ did not underflow");
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++result;
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}
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li = 0;
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feclearexcept (FE_ALL_EXCEPT);
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li = nextafterl (-lm, -li);
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if (li > 0 || li <= -LDBL_MIN)
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{
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puts ("nextafterl- failed");
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++result;
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}
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if (fetestexcept (FE_UNDERFLOW) == 0)
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{
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puts ("nextafterl- did not underflow");
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++result;
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}
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li = -INFINITY;
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feclearexcept (FE_ALL_EXCEPT);
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lm = nextafterl (zero, inf);
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if (lm < 0.0 || lm >= LDBL_MIN)
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{
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puts ("nextafterl+ failed");
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++result;
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}
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if (fetestexcept (FE_UNDERFLOW) == 0)
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{
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puts ("nextafterl+ did not underflow");
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++result;
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}
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feclearexcept (FE_ALL_EXCEPT);
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if (nextafterl (lm, li) != 0.0)
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{
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puts ("nextafterl+ failed");
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++result;
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}
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if (fetestexcept (FE_UNDERFLOW) == 0)
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{
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puts ("nextafterl+ did not underflow");
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++result;
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}
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feclearexcept (FE_ALL_EXCEPT);
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lm = nextafterl (copysign (zero, -1.0), -inf);
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if (lm > 0.0 || lm <= -LDBL_MIN)
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{
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puts ("nextafterl- failed");
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++result;
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}
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if (fetestexcept (FE_UNDERFLOW) == 0)
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{
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puts ("nextafterl- did not underflow");
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++result;
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}
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feclearexcept (FE_ALL_EXCEPT);
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if (nextafterl (lm, -li) != 0.0)
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{
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puts ("nextafterl- failed");
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++result;
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}
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if (fetestexcept (FE_UNDERFLOW) == 0)
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{
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puts ("nextafterl- did not underflow");
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++result;
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}
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#endif
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return result;
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}
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