| History log of /src/lib/libc/compat/gen/compat_ldexp_ieee754.c |
| Revision | | Date | Author | Comments |
| 1.9 |
| 17-Jun-2024 |
riastradh | libc ldexp(3): Avoid undefined behaviour in arithmetic overflow.
PR lib/58347
|
| 1.8 |
| 21-May-2020 |
riastradh | branches: 1.8.6;
Teach libc's compat ldexp stub to raise fp exceptions.
This ldexp stub will shadow the ldexp weak alias for scalbn in libm,
which is unfortunate but hard to fix properly without chasing the
mythical libc bump beast. With the change here, we should raise all
the same exceptions that libm's scalbn does -- overflow, underflow,
inexact-result, and (for signalling NaN only) invalid-operation.
This in turn should correct the missing overflow/underflow exceptions
of our portable C fma, and perhaps other routines.
XXX pullup
|
| 1.7 |
| 27-Aug-2016 |
christos | branches: 1.7.16;
remove debugging
|
| 1.6 |
| 27-Aug-2016 |
christos | detect overflow in oldexp + newexp
|
| 1.5 |
| 23-Apr-2010 |
drochner | use the local versions of ldexp/frexp/modf again rather than pulling
in libm source code. The libm functions depend on other libm functions,
this requires symbol renaming, and with the reachover method this
is going to be a mess. Also, bundling the dependencies into one .o
file has the potential to cause symbol conflicts on static linking.
|
| 1.4 |
| 28-Sep-2008 |
christos | branches: 1.4.6;
this needs finite and scalbn
|
| 1.3 |
| 28-Sep-2008 |
christos | having 2 separate implementations of frexp ldexp and modf (one here and
one in libm) that produce different results does not make any sense. Use
the one from libm to build instead.
|
| 1.2 |
| 28-Apr-2008 |
martin | Remove clause 3 and 4 from TNF licenses
|
| 1.1 |
| 27-Jun-2006 |
drochner | branches: 1.1.18;
First step to clean up the variety of frexp(), ldexp() and modf()
implementations.
Long term goal is to use the implementation in libm and get rid of
the libc instances. For now, we need to keep one in libc for compatibility,
it belongs into the compat subtree.
The switch is per-arch. Should be painless for ieee754 boxes.
If all ieee754 archs are switched, libc/gen/{frexp,ldexp,modf}_ieee754.c
can be removed.
|
| 1.1.18.1 |
| 18-May-2008 |
yamt | sync with head.
|
| 1.4.6.2 |
| 28-Sep-2008 |
christos | this needs finite and scalbn
|
| 1.4.6.1 |
| 28-Sep-2008 |
christos | file compat_ldexp_ieee754.c was added on branch christos-time_t on 2008-09-28 18:54:31 +0000
|
| 1.7.16.2 |
| 13-Oct-2024 |
martin | Pull up following revision(s) (requested by riastradh in ticket #1905):
lib/libc/compat/gen/compat_ldexp_ieee754.c: revision 1.9
libc ldexp(3): Avoid undefined behaviour in arithmetic overflow.
PR lib/58347
|
| 1.7.16.1 |
| 25-May-2020 |
martin | Pull up following revision(s) (requested by riastradh in ticket #920):
lib/libc/compat/gen/compat_ldexp_ieee754.c: revision 1.8
Teach libc's compat ldexp stub to raise fp exceptions.
This ldexp stub will shadow the ldexp weak alias for scalbn in libm,
which is unfortunate but hard to fix properly without chasing the
mythical libc bump beast. With the change here, we should raise all
the same exceptions that libm's scalbn does -- overflow, underflow,
inexact-result, and (for signalling NaN only) invalid-operation.
This in turn should correct the missing overflow/underflow exceptions
of our portable C fma, and perhaps other routines.
XXX pullup
|
| 1.8.6.1 |
| 13-Oct-2024 |
martin | Pull up following revision(s) (requested by riastradh in ticket #962):
lib/libc/compat/gen/compat_ldexp_ieee754.c: revision 1.9
libc ldexp(3): Avoid undefined behaviour in arithmetic overflow.
PR lib/58347
|
