assert.h: remove custom macro definitions for lint mode

In lint mode, 'assert(cond)' expanded to nothing. This broke code like
sqlite that assumes 'assert(cond)' expands to an expression that can be
used as operand of the comma operator, as in 'return assert(i > 0), i'.

Remove the static_assert() fallback for pre-C11 and pre-C++11

C++ without real static_assert() can be incompatible with the C fallback
as presented in openjdk.

A pre-C11 compiler can be picky on the implementation.

As a _NETBSD_SOURCE extension define static_assert for pre-c11/c++99

Proposed on source-changes-d.

Limit static_assert visibility to C11.

The existing definition caused issues as GCC only provides _Static_assert
when building C11 code.
This follows the C standard: static_assert available since C11.

Fixes https://rt.perl.org/Public/Bug/Display.html?id=134023

branches: 1.22.6; 1.22.14;
Add static_assert macro definition in <assert.h>

This declaration conforms to the C11 standard
Reference: ISO/IEC 9899:201x 7.2 Diagnostics <assert.h>

_Static_assert performs compile-time assertion checking.

According to ISO/IEC 9899:201x (draft) 7.2 Diagnostics <assert.h> defines
the static_assert macro which expands to _Static_assert. It's not
conditionalized by NDEBUG like the assert macro.

According to ISO/IEC N3242=11-0012 (C++1x) the <cassert> header shall
define only the assert macro, but not static_assert as it's already part
of the C++11 language.

Allow to define static_assert in C++ prior the C++11 standard. It might be
broken but a nonstandard C++ compiler might support C11-like _Static_assert
feature. Note that it's fatal for g++ 5.4, but it works for clang++ 3.8.1.

Approved by <joerg>.

branches: 1.21.24;
__assert and __assert13 are dead

branches: 1.20.2;
include <sys/null.h> because _DIAGASSERT(foo == NULL) is too common and some
include it.

Define away __assert_function__ if __lint__.

branches: 1.18.26;
de-__P -- the hack is long since useless. Discussed with christos,
matt, kleink, others. Approved by christos.

Tidy up the namespace: lint -> __lint__.

Remove _assert() again. As has been noted by Ben Harris, this had been
removed already in rev. 1.4 and was subsequently reinstated by the
Lite-2 import. Nothing uses it, and it pollutes user namespace.

branches: 1.15.2;
Move UCB-licensed code from 4-clause to 3-clause licence.

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

EBENISANIDIOT: Remove a spurious '#endif' that crept in under the radar.

Namespace cleanup: _assert is in the application's namespace, and thus should
only be exposed if _NETBSD_SOURCE is defined. To make life less complicated,
define _assert() in terms of assert(), since they always seem to have identical
definitions.

_assert() was removed back in 1993, but got reinstated with the 4.4Lite
import. Maybe it should go again. Nothing in the tree uses it.

Employ __static_cast(); suggested by Dave Sainty in PR lib/11766.

branches: 1.11.2;
avoid multiple declarations.

C99: Print the name of the function enclosing the assertion, if possible.

#ifdef __STDC__ -> #if __STDC__

if _DIAGNOSTIC is defined, define _DIAGASSERT() to call __diagassert(),
otherwise it's a no-op.
prototype __diagassert().

Define assert and _assert macros for lint when NDEBUG is present as nothing.

new RCS ID format.

update all but ctype.h, dumprestore.h, time.h to 4.4-Lite versions.
USL copyright additions on those. Kill varargs.h, because it can simply
be a link to the machine-dependent version.

Use _ASSERT_H_ guard macro so that <sys/cdefs.h> is only included once and
the __assert() helper function is declared once if <assert.h> is included
multiple times.
Don't support the _assert() macro, nothing uses it and it pollutes the
user's namespace.

Add RCS identifiers.

Make assert macro ansi complient.

branches: 1.1.1;
Initial revision

Remove the static_assert() fallback for pre-C11 and pre-C++11

C++ without real static_assert() can be incompatible with the C fallback
as presented in openjdk.

A pre-C11 compiler can be picky on the implementation.

As a _NETBSD_SOURCE extension define static_assert for pre-c11/c++99

Proposed on source-changes-d.

Limit static_assert visibility to C11.

The existing definition caused issues as GCC only provides _Static_assert
when building C11 code.
This follows the C standard: static_assert available since C11.

Fixes https://rt.perl.org/Public/Bug/Display.html?id=134023

branches: 1.22.6; 1.22.14;
Add static_assert macro definition in <assert.h>

This declaration conforms to the C11 standard
Reference: ISO/IEC 9899:201x 7.2 Diagnostics <assert.h>

_Static_assert performs compile-time assertion checking.

According to ISO/IEC 9899:201x (draft) 7.2 Diagnostics <assert.h> defines
the static_assert macro which expands to _Static_assert. It's not
conditionalized by NDEBUG like the assert macro.

According to ISO/IEC N3242=11-0012 (C++1x) the <cassert> header shall
define only the assert macro, but not static_assert as it's already part
of the C++11 language.

Allow to define static_assert in C++ prior the C++11 standard. It might be
broken but a nonstandard C++ compiler might support C11-like _Static_assert
feature. Note that it's fatal for g++ 5.4, but it works for clang++ 3.8.1.

Approved by <joerg>.

branches: 1.21.24;
__assert and __assert13 are dead

branches: 1.20.2;
include <sys/null.h> because _DIAGASSERT(foo == NULL) is too common and some
include it.

Define away __assert_function__ if __lint__.

branches: 1.18.26;
de-__P -- the hack is long since useless. Discussed with christos,
matt, kleink, others. Approved by christos.

Tidy up the namespace: lint -> __lint__.

Remove _assert() again. As has been noted by Ben Harris, this had been
removed already in rev. 1.4 and was subsequently reinstated by the
Lite-2 import. Nothing uses it, and it pollutes user namespace.

branches: 1.15.2;
Move UCB-licensed code from 4-clause to 3-clause licence.

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

EBENISANIDIOT: Remove a spurious '#endif' that crept in under the radar.

Namespace cleanup: _assert is in the application's namespace, and thus should
only be exposed if _NETBSD_SOURCE is defined. To make life less complicated,
define _assert() in terms of assert(), since they always seem to have identical
definitions.

_assert() was removed back in 1993, but got reinstated with the 4.4Lite
import. Maybe it should go again. Nothing in the tree uses it.

Employ __static_cast(); suggested by Dave Sainty in PR lib/11766.

branches: 1.11.2;
avoid multiple declarations.

C99: Print the name of the function enclosing the assertion, if possible.

#ifdef __STDC__ -> #if __STDC__

if _DIAGNOSTIC is defined, define _DIAGASSERT() to call __diagassert(),
otherwise it's a no-op.
prototype __diagassert().

Define assert and _assert macros for lint when NDEBUG is present as nothing.

new RCS ID format.

update all but ctype.h, dumprestore.h, time.h to 4.4-Lite versions.
USL copyright additions on those. Kill varargs.h, because it can simply
be a link to the machine-dependent version.

Use _ASSERT_H_ guard macro so that <sys/cdefs.h> is only included once and
the __assert() helper function is declared once if <assert.h> is included
multiple times.
Don't support the _assert() macro, nothing uses it and it pollutes the
user's namespace.

Add RCS identifiers.

Make assert macro ansi complient.

branches: 1.1.1;
Initial revision

As a _NETBSD_SOURCE extension define static_assert for pre-c11/c++99

Proposed on source-changes-d.

Limit static_assert visibility to C11.

The existing definition caused issues as GCC only provides _Static_assert
when building C11 code.
This follows the C standard: static_assert available since C11.

Fixes https://rt.perl.org/Public/Bug/Display.html?id=134023

Add static_assert macro definition in <assert.h>

This declaration conforms to the C11 standard
Reference: ISO/IEC 9899:201x 7.2 Diagnostics <assert.h>

_Static_assert performs compile-time assertion checking.

According to ISO/IEC 9899:201x (draft) 7.2 Diagnostics <assert.h> defines
the static_assert macro which expands to _Static_assert. It's not
conditionalized by NDEBUG like the assert macro.

According to ISO/IEC N3242=11-0012 (C++1x) the <cassert> header shall
define only the assert macro, but not static_assert as it's already part
of the C++11 language.

Allow to define static_assert in C++ prior the C++11 standard. It might be
broken but a nonstandard C++ compiler might support C11-like _Static_assert
feature. Note that it's fatal for g++ 5.4, but it works for clang++ 3.8.1.

Approved by <joerg>.

branches: 1.21.24;
__assert and __assert13 are dead

branches: 1.20.2;
include <sys/null.h> because _DIAGASSERT(foo == NULL) is too common and some
include it.

Define away __assert_function__ if __lint__.

branches: 1.18.26;
de-__P -- the hack is long since useless. Discussed with christos,
matt, kleink, others. Approved by christos.

Tidy up the namespace: lint -> __lint__.

Remove _assert() again. As has been noted by Ben Harris, this had been
removed already in rev. 1.4 and was subsequently reinstated by the
Lite-2 import. Nothing uses it, and it pollutes user namespace.

branches: 1.15.2;
Move UCB-licensed code from 4-clause to 3-clause licence.

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

EBENISANIDIOT: Remove a spurious '#endif' that crept in under the radar.

Namespace cleanup: _assert is in the application's namespace, and thus should
only be exposed if _NETBSD_SOURCE is defined. To make life less complicated,
define _assert() in terms of assert(), since they always seem to have identical
definitions.

_assert() was removed back in 1993, but got reinstated with the 4.4Lite
import. Maybe it should go again. Nothing in the tree uses it.

Employ __static_cast(); suggested by Dave Sainty in PR lib/11766.

branches: 1.11.2;
avoid multiple declarations.

C99: Print the name of the function enclosing the assertion, if possible.

#ifdef __STDC__ -> #if __STDC__

if _DIAGNOSTIC is defined, define _DIAGASSERT() to call __diagassert(),
otherwise it's a no-op.
prototype __diagassert().

Define assert and _assert macros for lint when NDEBUG is present as nothing.

new RCS ID format.

update all but ctype.h, dumprestore.h, time.h to 4.4-Lite versions.
USL copyright additions on those. Kill varargs.h, because it can simply
be a link to the machine-dependent version.

Use _ASSERT_H_ guard macro so that <sys/cdefs.h> is only included once and
the __assert() helper function is declared once if <assert.h> is included
multiple times.
Don't support the _assert() macro, nothing uses it and it pollutes the
user's namespace.

Add RCS identifiers.

Make assert macro ansi complient.

branches: 1.1.1;
Initial revision

Limit static_assert visibility to C11.

The existing definition caused issues as GCC only provides _Static_assert
when building C11 code.
This follows the C standard: static_assert available since C11.

Fixes https://rt.perl.org/Public/Bug/Display.html?id=134023

Add static_assert macro definition in <assert.h>

This declaration conforms to the C11 standard
Reference: ISO/IEC 9899:201x 7.2 Diagnostics <assert.h>

_Static_assert performs compile-time assertion checking.

According to ISO/IEC 9899:201x (draft) 7.2 Diagnostics <assert.h> defines
the static_assert macro which expands to _Static_assert. It's not
conditionalized by NDEBUG like the assert macro.

According to ISO/IEC N3242=11-0012 (C++1x) the <cassert> header shall
define only the assert macro, but not static_assert as it's already part
of the C++11 language.

Allow to define static_assert in C++ prior the C++11 standard. It might be
broken but a nonstandard C++ compiler might support C11-like _Static_assert
feature. Note that it's fatal for g++ 5.4, but it works for clang++ 3.8.1.

Approved by <joerg>.

branches: 1.21.24;
__assert and __assert13 are dead

branches: 1.20.2;
include <sys/null.h> because _DIAGASSERT(foo == NULL) is too common and some
include it.

Define away __assert_function__ if __lint__.

branches: 1.18.26;
de-__P -- the hack is long since useless. Discussed with christos,
matt, kleink, others. Approved by christos.

Tidy up the namespace: lint -> __lint__.

Remove _assert() again. As has been noted by Ben Harris, this had been
removed already in rev. 1.4 and was subsequently reinstated by the
Lite-2 import. Nothing uses it, and it pollutes user namespace.

branches: 1.15.2;
Move UCB-licensed code from 4-clause to 3-clause licence.

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

EBENISANIDIOT: Remove a spurious '#endif' that crept in under the radar.

Namespace cleanup: _assert is in the application's namespace, and thus should
only be exposed if _NETBSD_SOURCE is defined. To make life less complicated,
define _assert() in terms of assert(), since they always seem to have identical
definitions.

_assert() was removed back in 1993, but got reinstated with the 4.4Lite
import. Maybe it should go again. Nothing in the tree uses it.

Employ __static_cast(); suggested by Dave Sainty in PR lib/11766.

branches: 1.11.2;
avoid multiple declarations.

C99: Print the name of the function enclosing the assertion, if possible.

#ifdef __STDC__ -> #if __STDC__

if _DIAGNOSTIC is defined, define _DIAGASSERT() to call __diagassert(),
otherwise it's a no-op.
prototype __diagassert().

Define assert and _assert macros for lint when NDEBUG is present as nothing.

new RCS ID format.

update all but ctype.h, dumprestore.h, time.h to 4.4-Lite versions.
USL copyright additions on those. Kill varargs.h, because it can simply
be a link to the machine-dependent version.

Use _ASSERT_H_ guard macro so that <sys/cdefs.h> is only included once and
the __assert() helper function is declared once if <assert.h> is included
multiple times.
Don't support the _assert() macro, nothing uses it and it pollutes the
user's namespace.

Add RCS identifiers.

Make assert macro ansi complient.

branches: 1.1.1;
Initial revision

Add static_assert macro definition in <assert.h>

This declaration conforms to the C11 standard
Reference: ISO/IEC 9899:201x 7.2 Diagnostics <assert.h>

_Static_assert performs compile-time assertion checking.

According to ISO/IEC 9899:201x (draft) 7.2 Diagnostics <assert.h> defines
the static_assert macro which expands to _Static_assert. It's not
conditionalized by NDEBUG like the assert macro.

According to ISO/IEC N3242=11-0012 (C++1x) the <cassert> header shall
define only the assert macro, but not static_assert as it's already part
of the C++11 language.

Allow to define static_assert in C++ prior the C++11 standard. It might be
broken but a nonstandard C++ compiler might support C11-like _Static_assert
feature. Note that it's fatal for g++ 5.4, but it works for clang++ 3.8.1.

Approved by <joerg>.

branches: 1.21.24;
__assert and __assert13 are dead

branches: 1.20.2;
include <sys/null.h> because _DIAGASSERT(foo == NULL) is too common and some
include it.

Define away __assert_function__ if __lint__.

branches: 1.18.26;
de-__P -- the hack is long since useless. Discussed with christos,
matt, kleink, others. Approved by christos.

Tidy up the namespace: lint -> __lint__.

Remove _assert() again. As has been noted by Ben Harris, this had been
removed already in rev. 1.4 and was subsequently reinstated by the
Lite-2 import. Nothing uses it, and it pollutes user namespace.

branches: 1.15.2;
Move UCB-licensed code from 4-clause to 3-clause licence.

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

EBENISANIDIOT: Remove a spurious '#endif' that crept in under the radar.

Namespace cleanup: _assert is in the application's namespace, and thus should
only be exposed if _NETBSD_SOURCE is defined. To make life less complicated,
define _assert() in terms of assert(), since they always seem to have identical
definitions.

_assert() was removed back in 1993, but got reinstated with the 4.4Lite
import. Maybe it should go again. Nothing in the tree uses it.

Employ __static_cast(); suggested by Dave Sainty in PR lib/11766.

branches: 1.11.2;
avoid multiple declarations.

C99: Print the name of the function enclosing the assertion, if possible.

#ifdef __STDC__ -> #if __STDC__

if _DIAGNOSTIC is defined, define _DIAGASSERT() to call __diagassert(),
otherwise it's a no-op.
prototype __diagassert().

Define assert and _assert macros for lint when NDEBUG is present as nothing.

new RCS ID format.

update all but ctype.h, dumprestore.h, time.h to 4.4-Lite versions.
USL copyright additions on those. Kill varargs.h, because it can simply
be a link to the machine-dependent version.

Use _ASSERT_H_ guard macro so that <sys/cdefs.h> is only included once and
the __assert() helper function is declared once if <assert.h> is included
multiple times.
Don't support the _assert() macro, nothing uses it and it pollutes the
user's namespace.

Add RCS identifiers.

Make assert macro ansi complient.

branches: 1.1.1;
Initial revision