Permalink
Cannot retrieve contributors at this time
Name already in use
A tag already exists with the provided branch name. Many Git commands accept both tag and branch names, so creating this branch may cause unexpected behavior. Are you sure you want to create this branch?
glibc/math/bug-nextafter.c
Go to fileThis commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
325 lines (315 sloc)
7.5 KB
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
#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; | |
float i = INFINITY; | |
float m = FLT_MAX; | |
feclearexcept (FE_ALL_EXCEPT); | |
if (nextafterf (m, i) != i) | |
{ | |
puts ("nextafterf+ failed"); | |
++result; | |
} | |
if (EXCEPTION_TESTS (float) && fetestexcept (FE_OVERFLOW) == 0) | |
{ | |
puts ("nextafterf+ did not overflow"); | |
++result; | |
} | |
feclearexcept (FE_ALL_EXCEPT); | |
if (nextafterf (-m, -i) != -i) | |
{ | |
puts ("nextafterf- failed"); | |
++result; | |
} | |
if (EXCEPTION_TESTS (float) && fetestexcept (FE_OVERFLOW) == 0) | |
{ | |
puts ("nextafterf- did not overflow"); | |
++result; | |
} | |
i = 0; | |
m = FLT_MIN; | |
feclearexcept (FE_ALL_EXCEPT); | |
i = nextafterf (m, i); | |
if (i < 0 || i >= FLT_MIN) | |
{ | |
puts ("nextafterf+ failed"); | |
++result; | |
} | |
if (EXCEPTION_TESTS (float) && fetestexcept (FE_UNDERFLOW) == 0) | |
{ | |
puts ("nextafterf+ did not underflow"); | |
++result; | |
} | |
i = 0; | |
feclearexcept (FE_ALL_EXCEPT); | |
i = nextafterf (-m, -i); | |
if (i > 0 || i <= -FLT_MIN) | |
{ | |
puts ("nextafterf- failed"); | |
++result; | |
} | |
if (EXCEPTION_TESTS (float) && fetestexcept (FE_UNDERFLOW) == 0) | |
{ | |
puts ("nextafterf- did not underflow"); | |
++result; | |
} | |
i = -INFINITY; | |
feclearexcept (FE_ALL_EXCEPT); | |
m = nextafterf (zero, inf); | |
if (m < 0.0 || m >= FLT_MIN) | |
{ | |
puts ("nextafterf+ failed"); | |
++result; | |
} | |
if (EXCEPTION_TESTS (float) && fetestexcept (FE_UNDERFLOW) == 0) | |
{ | |
puts ("nextafterf+ did not underflow"); | |
++result; | |
} | |
feclearexcept (FE_ALL_EXCEPT); | |
if (nextafterf (m, i) != 0.0) | |
{ | |
puts ("nextafterf+ failed"); | |
++result; | |
} | |
if (EXCEPTION_TESTS (float) && fetestexcept (FE_UNDERFLOW) == 0) | |
{ | |
puts ("nextafterf+ did not underflow"); | |
++result; | |
} | |
feclearexcept (FE_ALL_EXCEPT); | |
m = nextafterf (copysignf (zero, -1.0), -inf); | |
if (m > 0.0 || m <= -FLT_MIN) | |
{ | |
puts ("nextafterf- failed"); | |
++result; | |
} | |
if (EXCEPTION_TESTS (float) && fetestexcept (FE_UNDERFLOW) == 0) | |
{ | |
puts ("nextafterf- did not underflow"); | |
++result; | |
} | |
feclearexcept (FE_ALL_EXCEPT); | |
if (nextafterf (m, -i) != 0.0) | |
{ | |
puts ("nextafterf- failed"); | |
++result; | |
} | |
if (EXCEPTION_TESTS (float) && fetestexcept (FE_UNDERFLOW) == 0) | |
{ | |
puts ("nextafterf- did not underflow"); | |
++result; | |
} | |
double di = INFINITY; | |
double dm = DBL_MAX; | |
feclearexcept (FE_ALL_EXCEPT); | |
if (nextafter (dm, di) != di) | |
{ | |
puts ("nextafter+ failed"); | |
++result; | |
} | |
if (EXCEPTION_TESTS (double) && fetestexcept (FE_OVERFLOW) == 0) | |
{ | |
puts ("nextafter+ did not overflow"); | |
++result; | |
} | |
feclearexcept (FE_ALL_EXCEPT); | |
if (nextafter (-dm, -di) != -di) | |
{ | |
puts ("nextafter failed"); | |
++result; | |
} | |
if (EXCEPTION_TESTS (double) && fetestexcept (FE_OVERFLOW) == 0) | |
{ | |
puts ("nextafter- did not overflow"); | |
++result; | |
} | |
di = 0; | |
dm = DBL_MIN; | |
feclearexcept (FE_ALL_EXCEPT); | |
di = nextafter (dm, di); | |
if (di < 0 || di >= DBL_MIN) | |
{ | |
puts ("nextafter+ failed"); | |
++result; | |
} | |
if (EXCEPTION_TESTS (double) && fetestexcept (FE_UNDERFLOW) == 0) | |
{ | |
puts ("nextafter+ did not underflow"); | |
++result; | |
} | |
di = 0; | |
feclearexcept (FE_ALL_EXCEPT); | |
di = nextafter (-dm, -di); | |
if (di > 0 || di <= -DBL_MIN) | |
{ | |
puts ("nextafter- failed"); | |
++result; | |
} | |
if (EXCEPTION_TESTS (double) && fetestexcept (FE_UNDERFLOW) == 0) | |
{ | |
puts ("nextafter- did not underflow"); | |
++result; | |
} | |
di = -INFINITY; | |
feclearexcept (FE_ALL_EXCEPT); | |
dm = nextafter (zero, inf); | |
if (dm < 0.0 || dm >= DBL_MIN) | |
{ | |
puts ("nextafter+ failed"); | |
++result; | |
} | |
if (EXCEPTION_TESTS (double) && fetestexcept (FE_UNDERFLOW) == 0) | |
{ | |
puts ("nextafter+ did not underflow"); | |
++result; | |
} | |
feclearexcept (FE_ALL_EXCEPT); | |
if (nextafter (dm, di) != 0.0) | |
{ | |
puts ("nextafter+ failed"); | |
++result; | |
} | |
if (EXCEPTION_TESTS (double) && fetestexcept (FE_UNDERFLOW) == 0) | |
{ | |
puts ("nextafter+ did not underflow"); | |
++result; | |
} | |
feclearexcept (FE_ALL_EXCEPT); | |
dm = nextafter (copysign (zero, -1.0), -inf); | |
if (dm > 0.0 || dm <= -DBL_MIN) | |
{ | |
puts ("nextafter- failed"); | |
++result; | |
} | |
if (EXCEPTION_TESTS (double) && fetestexcept (FE_UNDERFLOW) == 0) | |
{ | |
puts ("nextafter- did not underflow"); | |
++result; | |
} | |
feclearexcept (FE_ALL_EXCEPT); | |
if (nextafter (dm, -di) != 0.0) | |
{ | |
puts ("nextafter- failed"); | |
++result; | |
} | |
if (EXCEPTION_TESTS (double) && fetestexcept (FE_UNDERFLOW) == 0) | |
{ | |
puts ("nextafter- did not underflow"); | |
++result; | |
} | |
#ifndef NO_LONG_DOUBLE | |
long double li = INFINITY; | |
long double lm = LDBL_MAX; | |
feclearexcept (FE_ALL_EXCEPT); | |
if (nextafterl (lm, li) != li) | |
{ | |
puts ("nextafterl+ failed"); | |
++result; | |
} | |
if (EXCEPTION_TESTS (long double) && fetestexcept (FE_OVERFLOW) == 0) | |
{ | |
puts ("nextafterl+ did not overflow"); | |
++result; | |
} | |
feclearexcept (FE_ALL_EXCEPT); | |
if (nextafterl (-lm, -li) != -li) | |
{ | |
puts ("nextafterl failed"); | |
++result; | |
} | |
if (EXCEPTION_TESTS (long double) && fetestexcept (FE_OVERFLOW) == 0) | |
{ | |
puts ("nextafterl- did not overflow"); | |
++result; | |
} | |
li = 0; | |
lm = LDBL_MIN; | |
feclearexcept (FE_ALL_EXCEPT); | |
li = nextafterl (lm, li); | |
if (li < 0 || li >= LDBL_MIN) | |
{ | |
puts ("nextafterl+ failed"); | |
++result; | |
} | |
if (EXCEPTION_TESTS (long double) && fetestexcept (FE_UNDERFLOW) == 0) | |
{ | |
puts ("nextafterl+ did not underflow"); | |
++result; | |
} | |
li = 0; | |
feclearexcept (FE_ALL_EXCEPT); | |
li = nextafterl (-lm, -li); | |
if (li > 0 || li <= -LDBL_MIN) | |
{ | |
puts ("nextafterl- failed"); | |
++result; | |
} | |
if (EXCEPTION_TESTS (long double) && fetestexcept (FE_UNDERFLOW) == 0) | |
{ | |
puts ("nextafterl- did not underflow"); | |
++result; | |
} | |
li = -INFINITY; | |
feclearexcept (FE_ALL_EXCEPT); | |
lm = nextafterl (zero, inf); | |
if (lm < 0.0 || lm >= LDBL_MIN) | |
{ | |
puts ("nextafterl+ failed"); | |
++result; | |
} | |
if (EXCEPTION_TESTS (long double) && fetestexcept (FE_UNDERFLOW) == 0) | |
{ | |
puts ("nextafterl+ did not underflow"); | |
++result; | |
} | |
feclearexcept (FE_ALL_EXCEPT); | |
if (nextafterl (lm, li) != 0.0) | |
{ | |
puts ("nextafterl+ failed"); | |
++result; | |
} | |
if (EXCEPTION_TESTS (long double) && fetestexcept (FE_UNDERFLOW) == 0) | |
{ | |
puts ("nextafterl+ did not underflow"); | |
++result; | |
} | |
feclearexcept (FE_ALL_EXCEPT); | |
lm = nextafterl (copysign (zero, -1.0), -inf); | |
if (lm > 0.0 || lm <= -LDBL_MIN) | |
{ | |
puts ("nextafterl- failed"); | |
++result; | |
} | |
if (EXCEPTION_TESTS (long double) && fetestexcept (FE_UNDERFLOW) == 0) | |
{ | |
puts ("nextafterl- did not underflow"); | |
++result; | |
} | |
feclearexcept (FE_ALL_EXCEPT); | |
if (nextafterl (lm, -li) != 0.0) | |
{ | |
puts ("nextafterl- failed"); | |
++result; | |
} | |
if (EXCEPTION_TESTS (long double) && fetestexcept (FE_UNDERFLOW) == 0) | |
{ | |
puts ("nextafterl- did not underflow"); | |
++result; | |
} | |
#endif | |
return result; | |
} |