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authorUlrich Drepper <drepper@redhat.com>1997-03-20 02:20:57 +0000
committerUlrich Drepper <drepper@redhat.com>1997-03-20 02:20:57 +0000
commitc57abfa73560ac665e126a66081e1549bcd4645b (patch)
treeba69ca2329ef60f22093769ad45a227dd90dad7c /sysdeps/libm-ieee754/s_modfl.c
parente61abf83986463e263de965d487fac5cb083839a (diff)
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1997-03-20 01:49 Ulrich Drepper <drepper@cygnus.com> * sysdeps/libm-ieee754/s_tanhl.c (__tanhl): Correct handling of -inf. * Makeconfig: (rpath-link): Add math/ directory. (math-objdir): New variable. (link-extra-lib): Define to special version when $(common-objpfx)!=$(objpfx) to allow libraries outside $(common-objpfx) be linked to the application. * math/Makefile: Add rules to build and run test programs. * math/libm-test.c (_GNU_SOURCE): Define only if still undefined. (check_equal): Correct check for error. (ceil_test): Fix typo. (log_test): Fix typo. (floor_test): Fix typo. (pow_test): Fix typos. (log10_test): Allow slight incorrectness for `log10(e)'. (modf_test): New functions to test `modf' et.al. (hypot_test): Rewrite test completely. Patch partly by Andreas Jaeger. * math/test-double.h (__NO_MATH_INLINES): Define only if not already defined. * math/test-float.h: Likewise. * math/test-logdouble.h: Likewise. * setjmp/setjmp.h: Change references of ANSI C to ISO C. * setjmp/tst-setjmp.c: Correct and extend test suite. * sysdeps/i386/__longjmp.S: Update copyright. * sysdeps/i386/bsd-_setjmp.S: Correct fatal bug in jump to `__sigsetjmp' in PIC code. * sysdeps/i386/bsd-setjmp.S: Likewise. * sysdeps/libm-i387/e_pow.S: Correct recognition of mantissa overflow. * sysdeps/libm-i387/e_powf.S: Likewise. * sysdeps/libm-i387/s_expm1.S: Handle x == +-0 as a special case since expm1(-0) == -0. * sysdeps/libm-i387/s_expm1f.S: Likewise. * sysdeps/libm-i387/s_expm1l.S: Likewise. * sysdeps/libm-ieee754/s_modf.c: Optimize code by avoiding unneeded access to FP number. * sysdeps/libm-ieee754/s_modff.c: Likewise. * sysdeps/libm-ieee754/s_modfl.c: Correct former completely bogus code. It never worked correctly. * sysdeps/libm-ieee754/s_tanh.c: Handle x == +-0 as a special case since tanh(-0) == -0. * sysdeps/libm-ieee754/s_tanhf.c: Likewise. 1997-03-19 21:13 Ulrich Drepper <drepper@cygnus.com> * stdlib/strtod.c (STRTOL): Use wchar_t as type for `decimal' and `thousands' to support systems with sizeof(wchar_t) != sizeof(wint_t). Blargh. * sysdeps/unix/sysv/linux/socketbits.h: Remove definition of SOL_IP, SOL_TCP, SOL_UDP, and SOL_IPX as they are defined in appropriate headers. * sysdeps/unix/sysv/linux/writev.c: Don't use MAX_IOVEC. Test for UIO_FASTIOV and set to 8 if not available. * sysdeps/unix/sysv/linux/readv.c: Likewise. Patch by HJ Lu. * sysdeps/unix/sysv/linux/xstat.c: Include <kernel_stat.h>, not "kernel_stat.h". * sysdeps/unix/sysv/linux/lxstat.c: Likewise. * sysdeps/unix/sysv/linux/fxstat.c: Likewise. Reported by fabsoft@fabsoft2.zarm.uni-bremen.de.
Diffstat (limited to 'sysdeps/libm-ieee754/s_modfl.c')
-rw-r--r--sysdeps/libm-ieee754/s_modfl.c19
1 files changed, 8 insertions, 11 deletions
diff --git a/sysdeps/libm-ieee754/s_modfl.c b/sysdeps/libm-ieee754/s_modfl.c
index 433c936240..324fe9fde6 100644
--- a/sysdeps/libm-ieee754/s_modfl.c
+++ b/sysdeps/libm-ieee754/s_modfl.c
@@ -55,32 +55,29 @@ static long double one = 1.0;
} else {
i = (0xffffffff)>>j0;
if(((i0&i)|i1)==0) { /* x is integral */
- u_int32_t high;
*iptr = x;
- GET_HIGH_WORD(high,x);
- INSERT_WORDS(x,high&0x80000000,0); /* return +-0 */
+ SET_LDOUBLE_WORDS(x,se&0x8000,0,0); /* return +-0 */
return x;
} else {
- INSERT_WORDS(*iptr,i0&(~i),0);
+ SET_LDOUBLE_WORDS(*iptr,se,i0&(~i),0);
return x - *iptr;
}
}
} else if (j0>63) { /* no fraction part */
- u_int32_t high;
*iptr = x*one;
- GET_HIGH_WORD(high,x);
- INSERT_WORDS(x,high&0x80000000,0); /* return +-0 */
+ /* We must handle NaNs separately. */
+ if (j0 == 0x4000 && ((i0 & 0x7fffffff) | i1))
+ return x*one;
+ SET_LDOUBLE_WORDS(x,se&0x8000,0,0); /* return +-0 */
return x;
} else { /* fraction part in low x */
i = ((u_int32_t)(0xffffffff))>>(j0-20);
if((i1&i)==0) { /* x is integral */
- u_int32_t high;
*iptr = x;
- GET_HIGH_WORD(high,x);
- INSERT_WORDS(x,high&0x80000000,0); /* return +-0 */
+ INSERT_WORDS(x,se&0x8000,0); /* return +-0 */
return x;
} else {
- INSERT_WORDS(*iptr,i0,i1&(~i));
+ SET_LDOUBLE_WORDS(*iptr,se,i0,i1&(~i));
return x - *iptr;
}
}