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History log of /src/usr.bin/m4/expr.c
RevisionDateAuthorComments
 1.21  26-Mar-2019  kre Use correct printf format for (struct input_file *)->lineno
SHould unbreak 32 bit host builds.
 1.20  26-Mar-2019  christos print the source line and file where the error happened.
 1.19  26-Oct-2009  christos branches: 1.19.46;
resolve conflicts.
 1.18  11-May-2006  mrg exp() -> m4_exp().
 1.17  06-Oct-2005  drochner merge in FreeBSD's rev.1.14:
Fix m4 to properly handle bitwise operators &, ^, and |. Fix operator
precedence. Add short-circuit evaluation.
 1.16  20-Jun-2004  jmc Completely rework how tools/compat is done. Purge all uses/references to
_NETBSD_SOURCE as this makes cross building from older/newer versions of
NetBSD harder, not easier (and also makes the resulting tools 'different')

Wrap all required code with the inclusion of nbtool_config.h, attempt to
only use POSIX code in all places (or when reasonable test w. configure and
provide definitions: ala u_int, etc).

Reviewed by lukem. Tested on FreeBSD 4.9, Redhat Linux ES3, NetBSD 1.6.2 x86
NetBSD current (x86 and amd64) and Solaris 9.

Fixes PR's: PR#17762 PR#25944
 1.15  07-Aug-2003  agc branches: 1.15.2;
Move UCB-licensed code from 4-clause to 3-clause licence.

Patches provided by Joel Baker in PR 22365, verified by myself.
 1.14  31-Jan-2002  tv Protect __RCSID and __COPYRIGHT from being invoked if not defined.
 1.13  21-Jan-2002  tv Make compilable from src/tools/m4 on non-NetBSD hosts.
 1.12  14-Nov-2001  tv Pull in various changes from OpenBSD, most from Marc Espie, including:
* Provide some GNUisms as extensions.
* Provide dynamically growable string space.
* Make define(defn(foo)) work correctly for builtins.
(The current version is supposed to be capable of satisfying autoconf.)

All still relevant NetBSD changes have been preserved in this version, and
formatting and style fixes have been applied in various places.

Thanks to Masao Uebayashi <uebayasi@soum.co.jp> for pointing this out.
 1.11  05-Mar-2001  wiz Sprinkle some const, and rename a shadow-variable.
 1.10  17-Oct-2000  jdolecek Fix unconsistent spacing/tabs. Adresses bin/11158 by Nathan Ahlstrom.
 1.9  14-Apr-1999  matthias make eval() recognize hexadecimal constant as specified in the man page.
 1.8  19-Oct-1997  lukem branches: 1.8.4;
WARNSify, fix .Nm usage, getopt returns -1 not EOF, deprecate register
 1.7  28-Sep-1995  tls Sync with 4.4BSD-Lite2
 1.6  14-Apr-1995  mycroft There were several places where m4 did not conform to the specification
in `The M4 Macro Processor', by Kernighan and Ritchie.

* `|' and `||' are both logical or. There is no binary or.
* `&' and `&&' are both logical and. There is no binary and.
* `!' has a much higher precedence.
* The equal and relation operators have the same precedence.
* `**' is implemented, and `^' is for exponentation (not xor).
* Unary `+' in implemented.

I've coded exponentiation to return what appears to be the same results
that other versions of m4 return.
 1.5  19-Jun-1994  glass upgrade to 4.4-lite m4. no local changes of note
 1.4  30-Oct-1993  glass latest m4 from ozan. now does the right thing w/respect to sendmail
 1.3  02-Aug-1993  mycroft Add RCS identifiers, remove some completely useless RCS logs and patchkit
headers, and a few other insignificant changes.
 1.2  18-Jun-1993  glass baseline of new version of m4 supplied by Ozan Yigit, original author
of the broken m4 we had. This is his stuff virgin + our Makefile.
 1.1  21-Mar-1993  cgd branches: 1.1.1;
Initial revision
 1.1.1.3  26-Oct-2009  christos Import new m4 from OpenBSD.
 1.1.1.2  28-Sep-1995  tls imported from 44lite2
 1.1.1.1  21-Mar-1993  cgd initial import of 386bsd-0.1 sources
 1.8.4.1  14-Apr-1999  matthias Pull up revision 1.9 from trunk (recognize hexadecimal constants in eval()).
 1.15.2.1  22-Jun-2004  tron Pull up revision 1.16 (requested by jmc in ticket #527):
Completely rework how tools/compat is done. Purge all uses/references to
_NETBSD_SOURCE as this makes cross building from older/newer versions of
NetBSD harder, not easier (and also makes the resulting tools 'different')
Wrap all required code with the inclusion of nbtool_config.h, attempt to
only use POSIX code in all places (or when reasonable test w. configure and
provide definitions: ala u_int, etc).
Reviewed by lukem. Tested on FreeBSD 4.9, Redhat Linux ES3, NetBSD 1.6.2 x86
NetBSD current (x86 and amd64) and Solaris 9.
Fixes PR's: PR#17762 PR#25944
 1.19.46.1  10-Jun-2019  christos Sync with HEAD

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