07449987c9
2003-12-07 Ulrich Drepper <drepper@redhat.com> * sysdeps/i386/fpu/s_nexttowardf.c: Construct overflow value correctly. * sysdeps/i386/fpu/s_nexttoward.c: Likewise. * sysdeps/ieee754/ldbl-128/s_nexttoward.c: Likewise. * sysdeps/ieee754/ldbl-96/s_nexttoward.c: Likewise. * math/Makefile (tests): Add bug-nexttoward. * math/bug-nexttowward.c: New file. * sysdeps/generic/s_nextafter.c: Make sure overflow exception is set. * sysdeps/ieee754/flt-32/s_nextafterf.c: Likewise. * math/bug-nextafter.c (main): Add tests for overflow and negative values.
66 lines
1.3 KiB
C
66 lines
1.3 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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int
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main (void)
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{
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int result = 0;
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long double tl = (long double) FLT_MAX + 0x1.0p128L;
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float fi = INFINITY;
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float m = FLT_MAX;
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feclearexcept (FE_ALL_EXCEPT);
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if (nexttowardf (m, tl) != fi)
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{
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puts ("nexttowardf+ 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 ("nexttowardf+ 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 (nexttowardf (-m, -tl) != -fi)
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{
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puts ("nexttowardf- 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 ("nexttowardf- did not overflow");
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++result;
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}
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tl = (long double) DBL_MAX + 1.0e305L;
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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 (nexttoward (dm, tl) != di)
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{
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puts ("nexttoward+ 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 ("nexttoward+ 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 (nexttoward (-dm, -tl) != -di)
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{
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puts ("nexttoward- 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 ("nexttoward- did not overflow");
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++result;
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}
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return result;
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}
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