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glibc/math/bug-nexttoward.c
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| #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; | |
| } |