d81b3ce220
make an intermediate float variable "volatile" on i386 to work around a gcc
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optimization problem: subsequent add/subs were done inside FPU registers,
with "double" precision, without rounding to "float" in between
2006-08-01 20:14:35 +00:00
d882b4c815
Rather than cast everything around (which upsets gcc4), use a union instead.
2006-07-08 00:28:21 +00:00
51086becae
move manpages for frexp/ldexp/modf to libm -- the (most) implementation is
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already there
2006-07-03 16:03:56 +00:00
9f0110033d
noieee src is not strict-aliasing compliant. apply -fno-strict-aliasing.
2006-07-01 08:57:14 +00:00
ec0b42887d
build w_cabs.c/w_cabsf.c with -fno-builtin-cabs[f]
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XXX: our cabs()/cabsf() are different to others.
2006-05-11 00:37:53 +00:00
e4293af91f
Sort SEE ALSO, bump date for previous.
2006-04-04 20:26:33 +00:00
75d99205fc
we don't have FE_TOWARDZERO (yet), refer to FP_RZ instead
2006-03-31 12:17:41 +00:00
500730a394
Mention trunc(3), reminded by kjk.
2006-03-26 02:02:38 +00:00
f4003bf348
Add LIBRARY.
2006-03-25 22:18:40 +00:00
2660f98628
Uncomment crossreference to round(3), we do have one.
2006-03-25 20:03:06 +00:00
0b2a86e51d
Uncomment crossreference to trunc now that we have it.
2006-03-25 20:01:36 +00:00
3e96ddc120
Add __RCSID(), u_intX_t -> uintX_t.
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cvs: ----------------------------------------------------------------------
2006-03-25 16:55:53 +00:00
f1336fbda3
Add trunc() and truncf() C99 functions, from FreeBSD.
2006-03-25 16:41:11 +00:00
b0f21ee1ea
merge libc/arch/{i386,x86_64}/gen/modf.S into one
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(not quite a merge actually, just an #ifdef for now)
and build it in the i386 case (amd64 should work, just needs to be tested)
That way, a program linking against libm should get the optimized
version as expected.
2006-03-22 20:45:58 +00:00
4ece2172cf
Build the sun versions of frexp(), ldexp() and modf().
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While the versions in libc/gen are prettier to look at, having single
precision versions in libm and double precision versions in libc causes
a lot of confusion, and to favor libm gets us coprocessor support.
2006-03-21 18:46:05 +00:00
0e514dc492
The second argument is not a float, so the "abi.h" abstraction
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doesn't work.
Open-code the argument handling instead.
Should fix the ldexp() bug reported by Brendon Costa in port-amd64.
2006-03-21 11:35:21 +00:00
cd35252882
Use float constants!
2006-03-19 20:54:15 +00:00
a42e5c8db9
Coverity CID 562: Flip the order of the if statement to prevent unreachable
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code.
2006-03-19 20:46:25 +00:00
fef1370818
Coverity CID 572: Comment out dead code.
2006-03-19 20:42:44 +00:00
15da190f2c
Coverity CID 573: Comment out unreachable code.
2006-03-19 20:41:24 +00:00
4696019f20
Coverity CID 574: Unreachable code due to incorrect constants. Correct
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constants according to the comments in the code, and add more comments.
2006-03-19 20:39:48 +00:00
3511ea5c9b
Coverity CID 575: comment out dead code.
2006-03-19 20:15:07 +00:00
ca5de9d73f
Bump date for previous.
2006-03-15 22:09:06 +00:00
d73d316468
Add nan(3), nanf(3), and nanl(3); welcome libm.so.0.4.
2006-03-15 22:07:08 +00:00
0d57b38925
Note roundf() in STANDARDS, too.
2006-01-24 16:39:45 +00:00
42796049d0
C versions of non-IEEE round() / roundf(). Alas, using the VAX
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cvtrdl; cvtld doesn't work for big numbers.
2006-01-17 13:16:08 +00:00
e08ae477d9
Oops - round() is supposed to return double, not integer.
2006-01-17 10:39:23 +00:00
5703e44cdb
Implement round(3), so that jot(1) can link again.
2006-01-15 12:39:44 +00:00
c4b850a8a6
Add man page for l{,l}rint{,f}(3), very loosely based on the FreeBSD one.
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Requested by martin@
Reviewed by drochner@
2005-09-16 15:26:47 +00:00
7ad8526195
activate e_atan2f.S which was there forever but not built, noticed
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by Joerg Sonnenberger
2005-07-28 17:55:19 +00:00
fcfde3ffb8
Bump minor version for log2{,f}.
2005-07-21 22:49:16 +00:00
1185f13617
Add i387 FPU routines for log2(3) and log2f(3).
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ok christos@
2005-07-21 20:58:21 +00:00
9aa540a2b5
Add wrappers for the newly added functions. Thanks Klaus!
2005-07-21 16:58:39 +00:00
d957cc9d17
Punctuation fixes, bump date for log2{,f}.
2005-07-21 12:58:22 +00:00
e5c18e58f2
Add log2 and log2f from FreeBSD PR 83845
2005-07-21 12:55:58 +00:00
cedcd39661
Don't cast x to double, it already is one.
2005-05-03 04:18:32 +00:00
8740cbe236
Add a conditional for proper m68k softfloat operation. It looks like I
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forgot to commit this file back when this functionality was added.
Noted by Bruce O'Neel (the original author) in port-mac68k@.
2004-11-13 20:29:47 +00:00
b774d2ae7d
add licenses
2004-10-13 15:18:31 +00:00
458288a626
pull in an accuracy fix for corner cases from FDLIBM 5.3
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(affects large arguments which are close to N*Pi+Pi/2):
2. k_tan.c error was > 1 ulp target for FDLIBM
5.2: Worst error at least 1.45 ulp at
tan(1.7765241907548024E+269) = 1.7733884462610958E+16
5.3: Worst error 0.96 ulp
2004-07-22 18:24:09 +00:00
c351eda960
amd64: stack sanity, leave the return PC alone
2004-07-16 18:40:24 +00:00
ffb3101064
round(3) and roundf(3) appeared in 2.0.
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Bump date.
2004-07-15 12:12:39 +00:00
f46be40b71
Move RCS Id to top of file; comment out reference to trunc(3),
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which we do not have.
2004-07-10 14:11:18 +00:00
bc836a3102
lib/24252: Add C99 functions round(3) and roundf(3).
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libm minor unchanged; ride a recent bump.
From FreeBSD.
2004-07-10 13:49:09 +00:00
3e7f9e1481
allocate stack space for temporary storage
2004-07-02 10:17:23 +00:00
07be12b505
also provide an alpha assembler implemtation of lrint()
2004-07-01 19:08:21 +00:00
5d151d763f
enable lrint.S for amd64 (which doesn't build libm387),
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and tighten the generic->machdep source distribution a bit to avoid
unwanted substitutions
2004-07-01 17:33:16 +00:00
af7cf00a5a
provide an assembler implementation of lrint() for i386 and amd64
2004-07-01 17:30:48 +00:00
9768ef916d
bump libm minor version (functions added)
2004-07-01 16:14:18 +00:00
147d852dbc
being here, add the (l)lround(f) functions to libm
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(almost the same like lrint)
2004-07-01 16:09:21 +00:00
54e35f616a
aboid to shift an int by more than 31 bits - behaviour is implementation
...
dependant in this case
2004-07-01 16:06:30 +00:00
drochner