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Last change
on this file was 2036, checked in by bird, 20 years ago |
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Initial revision
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Property cvs2svn:cvs-rev
set to
1.1
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Property svn:eol-style
set to
native
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Property svn:executable
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*
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Property svn:keywords
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Author Date Id Revision
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File size:
1.3 KB
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| 1 | #include <fenv.h>
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| 2 | #include <math.h>
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| 3 | #include <float.h>
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| 4 | #include <stdlib.h>
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| 5 | #include <stdio.h>
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| 6 |
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| 7 | int
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| 8 | main (void)
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| 9 | {
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| 10 | int result = 0;
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| 11 |
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| 12 | long double tl = (long double) FLT_MAX + 0x1.0p128L;
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| 13 | float fi = INFINITY;
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| 14 | float m = FLT_MAX;
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| 15 | feclearexcept (FE_ALL_EXCEPT);
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| 16 | if (nexttowardf (m, tl) != fi)
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| 17 | {
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| 18 | puts ("nexttowardf+ failed");
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| 19 | ++result;
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| 20 | }
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| 21 | if (fetestexcept (FE_OVERFLOW) == 0)
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| 22 | {
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| 23 | puts ("nexttowardf+ did not overflow");
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| 24 | ++result;
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| 25 | }
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| 26 | feclearexcept (FE_ALL_EXCEPT);
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| 27 | if (nexttowardf (-m, -tl) != -fi)
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| 28 | {
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| 29 | puts ("nexttowardf- failed");
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| 30 | ++result;
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| 31 | }
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| 32 | if (fetestexcept (FE_OVERFLOW) == 0)
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| 33 | {
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| 34 | puts ("nexttowardf- did not overflow");
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| 35 | ++result;
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| 36 | }
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| 37 |
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| 38 | tl = (long double) DBL_MAX + 1.0e305L;
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| 39 | double di = INFINITY;
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| 40 | double dm = DBL_MAX;
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| 41 | feclearexcept (FE_ALL_EXCEPT);
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| 42 | if (nexttoward (dm, tl) != di)
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| 43 | {
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| 44 | puts ("nexttoward+ failed");
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| 45 | ++result;
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| 46 | }
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| 47 | if (fetestexcept (FE_OVERFLOW) == 0)
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| 48 | {
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| 49 | puts ("nexttoward+ did not overflow");
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| 50 | ++result;
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| 51 | }
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| 52 | feclearexcept (FE_ALL_EXCEPT);
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| 53 | if (nexttoward (-dm, -tl) != -di)
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| 54 | {
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| 55 | puts ("nexttoward- failed");
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| 56 | ++result;
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| 57 | }
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| 58 | if (fetestexcept (FE_OVERFLOW) == 0)
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| 59 | {
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| 60 | puts ("nexttoward- did not overflow");
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| 61 | ++result;
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| 62 | }
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| 63 |
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| 64 | return result;
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| 65 | }
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