Remove trailing whitespace

Revert previous

Requested by joerg who wants to fix (ab)users.

Fix typo in a comment

Expose max_align_t to C99/C++

max_align_t does not depend on any pre-C99 or !C++ language feature.

This structure is in use in 3rd party essential C++ code as an extension
for older language revisions and in gnu99 code in the NetBSD distribution
(RTLD's build rules define -std=gnu11 just for exposing this struct).

Exposing max_align_t from the central NetBSD header avoid duplicate
definition in 3rd party code that could differ and produce ABI mismatched
binaries between -std= revisions.

This problem does not exist on OSs like Linux as they get this namespace
visibility defined inside LLVM or GNU toolchain headers. NetBSD ships with
its own stddef.h, rather than relying on a toolchain and its internal
extensions.

use foo - 0 instead of testing for defined(foo); from joerg@

PR/50983: David Shao: Protect stddef;
also make the pointer void *.

add max_align_t. C11 defines this and GCC 5.3 really wants it.

XXX: language laywers, please feel free to fix this as necessary.

Make ptrdiff_t available in the kernel.

branches: 1.16.8; 1.16.14;
Don't define wchar_t for c++; it is native in the language. From Alexander
Nasonov

branches: 1.15.26; 1.15.36;
Use __GNUC_PREREQ__() for the GCC 4 test, too.

__offsetof__ is a builtin, so we need __GNU_PREREQ

gcc-3.3 does not have __offsetof__, but gcc-3.4 eems to require it:

From the redhat web page:

http://www.redhat.com/docs/manuals/enterprise/RHEL-4-Manual/gcc/offsetof.html

__offsetof__ (expression)
is equivalent to the parenthesized expression, except that the
expression is considered an integral constant expression even if
it contains certain operators that are not normally permitted in
an integral constant expression. Users should never use __offsetof__
directly; the only valid use of __offsetof__ is to implement the
offsetof macro in <stddef.h>.

g++-4 does not like &0->member, so we have to use the built-in offsetof().
g++-3 does not have a built-in offsetof(), but we cannot use the c version,
otherwise we break with -Wold-style-cast.
Inspired by the DF version, but a bit different.

Use gcc's builtin function. This permits c++ compiliation of const
expressions using offsetof. Boost-python relies on this, for example.

branches: 1.10.4; 1.10.6; 1.10.12;
Move UCB-licensed code from 4-clause to 3-clause licence.

Patches provided by Joel Baker in PR 22270, verified by myself.

u_long -> unsigned long in "offsetof" macro.
Using u_long causes <stddef.h> to undesirably depend on <sys/types.h> .
BTW: Why is the cast needed?

de-lint

branches: 1.7.2;
Move <null.h> to <sys/null.h> for the purpose of avoiding conflicts due to
std C headers including it, and a kernel module written in C++ would benfit
as well.

For the benefit of G++'s null pointer constant implementation, #define NULL
as __null with egcs 1.0 (GCC 2.90) and above. As several headers are affected
by this change, move the definition into a new header file, <null.h>, to ease
maintenance.

merge lite-2 sccs id, but as per jt, don't switch to using lite-2 rune_t's

new RCS ID format.

add _BSD's to ansi types

Add RCS identifiers.

branches: 1.1.1;
Initial revision

Revert previous

Requested by joerg who wants to fix (ab)users.

Fix typo in a comment

Expose max_align_t to C99/C++

max_align_t does not depend on any pre-C99 or !C++ language feature.

This structure is in use in 3rd party essential C++ code as an extension
for older language revisions and in gnu99 code in the NetBSD distribution
(RTLD's build rules define -std=gnu11 just for exposing this struct).

Exposing max_align_t from the central NetBSD header avoid duplicate
definition in 3rd party code that could differ and produce ABI mismatched
binaries between -std= revisions.

This problem does not exist on OSs like Linux as they get this namespace
visibility defined inside LLVM or GNU toolchain headers. NetBSD ships with
its own stddef.h, rather than relying on a toolchain and its internal
extensions.

use foo - 0 instead of testing for defined(foo); from joerg@

PR/50983: David Shao: Protect stddef;
also make the pointer void *.

add max_align_t. C11 defines this and GCC 5.3 really wants it.

XXX: language laywers, please feel free to fix this as necessary.

Make ptrdiff_t available in the kernel.

branches: 1.16.8; 1.16.14;
Don't define wchar_t for c++; it is native in the language. From Alexander
Nasonov

branches: 1.15.26; 1.15.36;
Use __GNUC_PREREQ__() for the GCC 4 test, too.

__offsetof__ is a builtin, so we need __GNU_PREREQ

gcc-3.3 does not have __offsetof__, but gcc-3.4 eems to require it:

From the redhat web page:

http://www.redhat.com/docs/manuals/enterprise/RHEL-4-Manual/gcc/offsetof.html

__offsetof__ (expression)
is equivalent to the parenthesized expression, except that the
expression is considered an integral constant expression even if
it contains certain operators that are not normally permitted in
an integral constant expression. Users should never use __offsetof__
directly; the only valid use of __offsetof__ is to implement the
offsetof macro in <stddef.h>.

g++-4 does not like &0->member, so we have to use the built-in offsetof().
g++-3 does not have a built-in offsetof(), but we cannot use the c version,
otherwise we break with -Wold-style-cast.
Inspired by the DF version, but a bit different.

Use gcc's builtin function. This permits c++ compiliation of const
expressions using offsetof. Boost-python relies on this, for example.

branches: 1.10.4; 1.10.6; 1.10.12;
Move UCB-licensed code from 4-clause to 3-clause licence.

Patches provided by Joel Baker in PR 22270, verified by myself.

u_long -> unsigned long in "offsetof" macro.
Using u_long causes <stddef.h> to undesirably depend on <sys/types.h> .
BTW: Why is the cast needed?

de-lint

branches: 1.7.2;
Move <null.h> to <sys/null.h> for the purpose of avoiding conflicts due to
std C headers including it, and a kernel module written in C++ would benfit
as well.

For the benefit of G++'s null pointer constant implementation, #define NULL
as __null with egcs 1.0 (GCC 2.90) and above. As several headers are affected
by this change, move the definition into a new header file, <null.h>, to ease
maintenance.

merge lite-2 sccs id, but as per jt, don't switch to using lite-2 rune_t's

new RCS ID format.

add _BSD's to ansi types

Add RCS identifiers.

branches: 1.1.1;
Initial revision

use foo - 0 instead of testing for defined(foo); from joerg@

PR/50983: David Shao: Protect stddef;
also make the pointer void *.

add max_align_t. C11 defines this and GCC 5.3 really wants it.

XXX: language laywers, please feel free to fix this as necessary.

Make ptrdiff_t available in the kernel.

branches: 1.16.8; 1.16.14;
Don't define wchar_t for c++; it is native in the language. From Alexander
Nasonov

branches: 1.15.26; 1.15.36;
Use __GNUC_PREREQ__() for the GCC 4 test, too.

__offsetof__ is a builtin, so we need __GNU_PREREQ

gcc-3.3 does not have __offsetof__, but gcc-3.4 eems to require it:

From the redhat web page:

http://www.redhat.com/docs/manuals/enterprise/RHEL-4-Manual/gcc/offsetof.html

__offsetof__ (expression)
is equivalent to the parenthesized expression, except that the
expression is considered an integral constant expression even if
it contains certain operators that are not normally permitted in
an integral constant expression. Users should never use __offsetof__
directly; the only valid use of __offsetof__ is to implement the
offsetof macro in <stddef.h>.

g++-4 does not like &0->member, so we have to use the built-in offsetof().
g++-3 does not have a built-in offsetof(), but we cannot use the c version,
otherwise we break with -Wold-style-cast.
Inspired by the DF version, but a bit different.

Use gcc's builtin function. This permits c++ compiliation of const
expressions using offsetof. Boost-python relies on this, for example.

branches: 1.10.4; 1.10.6; 1.10.12;
Move UCB-licensed code from 4-clause to 3-clause licence.

Patches provided by Joel Baker in PR 22270, verified by myself.

u_long -> unsigned long in "offsetof" macro.
Using u_long causes <stddef.h> to undesirably depend on <sys/types.h> .
BTW: Why is the cast needed?

de-lint

branches: 1.7.2;
Move <null.h> to <sys/null.h> for the purpose of avoiding conflicts due to
std C headers including it, and a kernel module written in C++ would benfit
as well.

For the benefit of G++'s null pointer constant implementation, #define NULL
as __null with egcs 1.0 (GCC 2.90) and above. As several headers are affected
by this change, move the definition into a new header file, <null.h>, to ease
maintenance.

merge lite-2 sccs id, but as per jt, don't switch to using lite-2 rune_t's

new RCS ID format.

add _BSD's to ansi types

Add RCS identifiers.

branches: 1.1.1;
Initial revision