xemacs-beta: lwlib/xt-wrappers.h annotate

annotate lwlib/xt-wrappers.h @ 5906:4d5a5a80aba2

chartab.h, #define get_char_table_mirrors_ok correctly sans ERROR_CHECK_TYPES src/ChangeLog addition: 2015-05-08 Aidan Kehoe <kehoea@parhasard.net> * chartab.h (get_char_table_mirrors_ok): #define this correctly without ERROR_CHECK_TYPES.

author	Aidan Kehoe <kehoea@parhasard.net>
date	Fri, 08 May 2015 20:02:06 +0100
parents	69f9e31c9ccf
children

rev	line source
4528 726060ee587c First draft of g++ 4.3 warning removal patch. Builds. Needs ChangeLogs. Stephen J. Turnbull <stephen@xemacs.org> parents: diff changeset	1 /* Wrappers for Xt functions and macros
726060ee587c First draft of g++ 4.3 warning removal patch. Builds. Needs ChangeLogs. Stephen J. Turnbull <stephen@xemacs.org> parents: diff changeset	2
726060ee587c First draft of g++ 4.3 warning removal patch. Builds. Needs ChangeLogs. Stephen J. Turnbull <stephen@xemacs.org> parents: diff changeset	3 Copyright (C) 2008 Free Software Foundation
726060ee587c First draft of g++ 4.3 warning removal patch. Builds. Needs ChangeLogs. Stephen J. Turnbull <stephen@xemacs.org> parents: diff changeset	4
726060ee587c First draft of g++ 4.3 warning removal patch. Builds. Needs ChangeLogs. Stephen J. Turnbull <stephen@xemacs.org> parents: diff changeset	5 This file is part of XEmacs.
726060ee587c First draft of g++ 4.3 warning removal patch. Builds. Needs ChangeLogs. Stephen J. Turnbull <stephen@xemacs.org> parents: diff changeset	6
5402 308d34e9f07d Changed bulk of GPLv2 or later files identified by script Mats Lidell <matsl@xemacs.org> parents: 5016 diff changeset	7 XEmacs is free software: you can redistribute it and/or modify it
4528 726060ee587c First draft of g++ 4.3 warning removal patch. Builds. Needs ChangeLogs. Stephen J. Turnbull <stephen@xemacs.org> parents: diff changeset	8 under the terms of the GNU General Public License as published by the
5402 308d34e9f07d Changed bulk of GPLv2 or later files identified by script Mats Lidell <matsl@xemacs.org> parents: 5016 diff changeset	9 Free Software Foundation, either version 3 of the License, or (at your
308d34e9f07d Changed bulk of GPLv2 or later files identified by script Mats Lidell <matsl@xemacs.org> parents: 5016 diff changeset	10 option) any later version.
4528 726060ee587c First draft of g++ 4.3 warning removal patch. Builds. Needs ChangeLogs. Stephen J. Turnbull <stephen@xemacs.org> parents: diff changeset	11
726060ee587c First draft of g++ 4.3 warning removal patch. Builds. Needs ChangeLogs. Stephen J. Turnbull <stephen@xemacs.org> parents: diff changeset	12 XEmacs is distributed in the hope that it will be useful, but WITHOUT
726060ee587c First draft of g++ 4.3 warning removal patch. Builds. Needs ChangeLogs. Stephen J. Turnbull <stephen@xemacs.org> parents: diff changeset	13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
726060ee587c First draft of g++ 4.3 warning removal patch. Builds. Needs ChangeLogs. Stephen J. Turnbull <stephen@xemacs.org> parents: diff changeset	14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
726060ee587c First draft of g++ 4.3 warning removal patch. Builds. Needs ChangeLogs. Stephen J. Turnbull <stephen@xemacs.org> parents: diff changeset	15 for more details.
5402 308d34e9f07d Changed bulk of GPLv2 or later files identified by script Mats Lidell <matsl@xemacs.org> parents: 5016 diff changeset	16
4528 726060ee587c First draft of g++ 4.3 warning removal patch. Builds. Needs ChangeLogs. Stephen J. Turnbull <stephen@xemacs.org> parents: diff changeset	17 You should have received a copy of the GNU General Public License
5402 308d34e9f07d Changed bulk of GPLv2 or later files identified by script Mats Lidell <matsl@xemacs.org> parents: 5016 diff changeset	18 along with XEmacs. If not, see <http://www.gnu.org/licenses/>. */
4528 726060ee587c First draft of g++ 4.3 warning removal patch. Builds. Needs ChangeLogs. Stephen J. Turnbull <stephen@xemacs.org> parents: diff changeset	19
726060ee587c First draft of g++ 4.3 warning removal patch. Builds. Needs ChangeLogs. Stephen J. Turnbull <stephen@xemacs.org> parents: diff changeset	20 /* Synched up with: Not in FSF. */
726060ee587c First draft of g++ 4.3 warning removal patch. Builds. Needs ChangeLogs. Stephen J. Turnbull <stephen@xemacs.org> parents: diff changeset	21
726060ee587c First draft of g++ 4.3 warning removal patch. Builds. Needs ChangeLogs. Stephen J. Turnbull <stephen@xemacs.org> parents: diff changeset	22 /* Original author: Stephen J. Turnbull for 21.5.29 */
726060ee587c First draft of g++ 4.3 warning removal patch. Builds. Needs ChangeLogs. Stephen J. Turnbull <stephen@xemacs.org> parents: diff changeset	23
5843 69f9e31c9ccf Fix progress bar crashes. Stephen J. Turnbull <stephen@xemacs.org> parents: 5402 diff changeset	24 /* #### Factor out into xaw-wrappers (which would #include this file)? */
69f9e31c9ccf Fix progress bar crashes. Stephen J. Turnbull <stephen@xemacs.org> parents: 5402 diff changeset	25 #ifdef HAVE_ATHENA_I18N
69f9e31c9ccf Fix progress bar crashes. Stephen J. Turnbull <stephen@xemacs.org> parents: 5402 diff changeset	26 #define XAW_INTERNATIONALIZATION 1
69f9e31c9ccf Fix progress bar crashes. Stephen J. Turnbull <stephen@xemacs.org> parents: 5402 diff changeset	27 #endif
69f9e31c9ccf Fix progress bar crashes. Stephen J. Turnbull <stephen@xemacs.org> parents: 5402 diff changeset	28
4528 726060ee587c First draft of g++ 4.3 warning removal patch. Builds. Needs ChangeLogs. Stephen J. Turnbull <stephen@xemacs.org> parents: diff changeset	29 /* Generic utility macros, including coping with G++ whining.
726060ee587c First draft of g++ 4.3 warning removal patch. Builds. Needs ChangeLogs. Stephen J. Turnbull <stephen@xemacs.org> parents: diff changeset	30 Used in lwlib via lwlib.h and X consoles via console-x.h.
726060ee587c First draft of g++ 4.3 warning removal patch. Builds. Needs ChangeLogs. Stephen J. Turnbull <stephen@xemacs.org> parents: diff changeset	31
726060ee587c First draft of g++ 4.3 warning removal patch. Builds. Needs ChangeLogs. Stephen J. Turnbull <stephen@xemacs.org> parents: diff changeset	32 We would prefer to find another way to shut up G++. The issue is that
726060ee587c First draft of g++ 4.3 warning removal patch. Builds. Needs ChangeLogs. Stephen J. Turnbull <stephen@xemacs.org> parents: diff changeset	33 recent versions of the C++ standard deprecate implicit conversions
726060ee587c First draft of g++ 4.3 warning removal patch. Builds. Needs ChangeLogs. Stephen J. Turnbull <stephen@xemacs.org> parents: diff changeset	34 across function boundaries like
726060ee587c First draft of g++ 4.3 warning removal patch. Builds. Needs ChangeLogs. Stephen J. Turnbull <stephen@xemacs.org> parents: diff changeset	35
726060ee587c First draft of g++ 4.3 warning removal patch. Builds. Needs ChangeLogs. Stephen J. Turnbull <stephen@xemacs.org> parents: diff changeset	36 typedef char *String;
726060ee587c First draft of g++ 4.3 warning removal patch. Builds. Needs ChangeLogs. Stephen J. Turnbull <stephen@xemacs.org> parents: diff changeset	37 void foo (String string);
726060ee587c First draft of g++ 4.3 warning removal patch. Builds. Needs ChangeLogs. Stephen J. Turnbull <stephen@xemacs.org> parents: diff changeset	38 foo ("bar");
726060ee587c First draft of g++ 4.3 warning removal patch. Builds. Needs ChangeLogs. Stephen J. Turnbull <stephen@xemacs.org> parents: diff changeset	39
726060ee587c First draft of g++ 4.3 warning removal patch. Builds. Needs ChangeLogs. Stephen J. Turnbull <stephen@xemacs.org> parents: diff changeset	40 because "bar" should be allowed to be a read-only array of chars. But of
726060ee587c First draft of g++ 4.3 warning removal patch. Builds. Needs ChangeLogs. Stephen J. Turnbull <stephen@xemacs.org> parents: diff changeset	41 course lots of legacy code (== X11) declares things as char * and expects
726060ee587c First draft of g++ 4.3 warning removal patch. Builds. Needs ChangeLogs. Stephen J. Turnbull <stephen@xemacs.org> parents: diff changeset	42 to assign literal strings to them. Now, the typedef in the example is
726060ee587c First draft of g++ 4.3 warning removal patch. Builds. Needs ChangeLogs. Stephen J. Turnbull <stephen@xemacs.org> parents: diff changeset	43 important because in G++ 4.3.2 at least, this
726060ee587c First draft of g++ 4.3 warning removal patch. Builds. Needs ChangeLogs. Stephen J. Turnbull <stephen@xemacs.org> parents: diff changeset	44
726060ee587c First draft of g++ 4.3 warning removal patch. Builds. Needs ChangeLogs. Stephen J. Turnbull <stephen@xemacs.org> parents: diff changeset	45 void foo (const String string);
726060ee587c First draft of g++ 4.3 warning removal patch. Builds. Needs ChangeLogs. Stephen J. Turnbull <stephen@xemacs.org> parents: diff changeset	46 foo ("bar");
726060ee587c First draft of g++ 4.3 warning removal patch. Builds. Needs ChangeLogs. Stephen J. Turnbull <stephen@xemacs.org> parents: diff changeset	47
726060ee587c First draft of g++ 4.3 warning removal patch. Builds. Needs ChangeLogs. Stephen J. Turnbull <stephen@xemacs.org> parents: diff changeset	48 does not work as expected! G++ still warns about this construct. However,
726060ee587c First draft of g++ 4.3 warning removal patch. Builds. Needs ChangeLogs. Stephen J. Turnbull <stephen@xemacs.org> parents: diff changeset	49 if foo is declared
726060ee587c First draft of g++ 4.3 warning removal patch. Builds. Needs ChangeLogs. Stephen J. Turnbull <stephen@xemacs.org> parents: diff changeset	50
726060ee587c First draft of g++ 4.3 warning removal patch. Builds. Needs ChangeLogs. Stephen J. Turnbull <stephen@xemacs.org> parents: diff changeset	51 void foo (const char *string);
726060ee587c First draft of g++ 4.3 warning removal patch. Builds. Needs ChangeLogs. Stephen J. Turnbull <stephen@xemacs.org> parents: diff changeset	52
726060ee587c First draft of g++ 4.3 warning removal patch. Builds. Needs ChangeLogs. Stephen J. Turnbull <stephen@xemacs.org> parents: diff changeset	53 G++ does not complain. (#### There are two possibilities I can think of.
726060ee587c First draft of g++ 4.3 warning removal patch. Builds. Needs ChangeLogs. Stephen J. Turnbull <stephen@xemacs.org> parents: diff changeset	54 (a) G++ is buggy. (b) "const String" is interpreted as "char * const".)
726060ee587c First draft of g++ 4.3 warning removal patch. Builds. Needs ChangeLogs. Stephen J. Turnbull <stephen@xemacs.org> parents: diff changeset	55
726060ee587c First draft of g++ 4.3 warning removal patch. Builds. Needs ChangeLogs. Stephen J. Turnbull <stephen@xemacs.org> parents: diff changeset	56 The upshot is that to avoid warnings with Xt's String typedef, we need to
726060ee587c First draft of g++ 4.3 warning removal patch. Builds. Needs ChangeLogs. Stephen J. Turnbull <stephen@xemacs.org> parents: diff changeset	57 arrange to cast literal strings to String, rather than use "const String"
726060ee587c First draft of g++ 4.3 warning removal patch. Builds. Needs ChangeLogs. Stephen J. Turnbull <stephen@xemacs.org> parents: diff changeset	58 in declarations. (My <X11/Intrinsic.h> says that the actual internal
726060ee587c First draft of g++ 4.3 warning removal patch. Builds. Needs ChangeLogs. Stephen J. Turnbull <stephen@xemacs.org> parents: diff changeset	59 typedef used is _XtString, so that String can be #define'd to something
726060ee587c First draft of g++ 4.3 warning removal patch. Builds. Needs ChangeLogs. Stephen J. Turnbull <stephen@xemacs.org> parents: diff changeset	60 else for the purposes of C++. But that doesn't really help us much.)
726060ee587c First draft of g++ 4.3 warning removal patch. Builds. Needs ChangeLogs. Stephen J. Turnbull <stephen@xemacs.org> parents: diff changeset	61
726060ee587c First draft of g++ 4.3 warning removal patch. Builds. Needs ChangeLogs. Stephen J. Turnbull <stephen@xemacs.org> parents: diff changeset	62 It's not very satisfactory to do it this way -- it would be much better to
726060ee587c First draft of g++ 4.3 warning removal patch. Builds. Needs ChangeLogs. Stephen J. Turnbull <stephen@xemacs.org> parents: diff changeset	63 have const Strings where they make sense -- but it does eliminate a few
726060ee587c First draft of g++ 4.3 warning removal patch. Builds. Needs ChangeLogs. Stephen J. Turnbull <stephen@xemacs.org> parents: diff changeset	64 hundred warnings from the C++ build. And in any case we don't control the
726060ee587c First draft of g++ 4.3 warning removal patch. Builds. Needs ChangeLogs. Stephen J. Turnbull <stephen@xemacs.org> parents: diff changeset	65 many objects declared with String components in Intrinsic.h. The remaining
726060ee587c First draft of g++ 4.3 warning removal patch. Builds. Needs ChangeLogs. Stephen J. Turnbull <stephen@xemacs.org> parents: diff changeset	66 issues are the WEXTTEXT macro used in src/emacs.c, and Emacs.ad.h (where
726060ee587c First draft of g++ 4.3 warning removal patch. Builds. Needs ChangeLogs. Stephen J. Turnbull <stephen@xemacs.org> parents: diff changeset	67 instead of String we use const char * in src/event-Xt.c in the array that
726060ee587c First draft of g++ 4.3 warning removal patch. Builds. Needs ChangeLogs. Stephen J. Turnbull <stephen@xemacs.org> parents: diff changeset	68 #includes it).
726060ee587c First draft of g++ 4.3 warning removal patch. Builds. Needs ChangeLogs. Stephen J. Turnbull <stephen@xemacs.org> parents: diff changeset	69 */
726060ee587c First draft of g++ 4.3 warning removal patch. Builds. Needs ChangeLogs. Stephen J. Turnbull <stephen@xemacs.org> parents: diff changeset	70
726060ee587c First draft of g++ 4.3 warning removal patch. Builds. Needs ChangeLogs. Stephen J. Turnbull <stephen@xemacs.org> parents: diff changeset	71 #ifndef INCLUDED_xt_wrappers_h_
726060ee587c First draft of g++ 4.3 warning removal patch. Builds. Needs ChangeLogs. Stephen J. Turnbull <stephen@xemacs.org> parents: diff changeset	72 #define INCLUDED_xt_wrappers_h_
726060ee587c First draft of g++ 4.3 warning removal patch. Builds. Needs ChangeLogs. Stephen J. Turnbull <stephen@xemacs.org> parents: diff changeset	73
726060ee587c First draft of g++ 4.3 warning removal patch. Builds. Needs ChangeLogs. Stephen J. Turnbull <stephen@xemacs.org> parents: diff changeset	74 /* Wrap XtResource, with the same elements as arguments.
726060ee587c First draft of g++ 4.3 warning removal patch. Builds. Needs ChangeLogs. Stephen J. Turnbull <stephen@xemacs.org> parents: diff changeset	75 The cast to String shuts up G++ 4.3's whining about const char *.
726060ee587c First draft of g++ 4.3 warning removal patch. Builds. Needs ChangeLogs. Stephen J. Turnbull <stephen@xemacs.org> parents: diff changeset	76 The invocation of sizeof should be pretty safe, and the cast to XtPointer
726060ee587c First draft of g++ 4.3 warning removal patch. Builds. Needs ChangeLogs. Stephen J. Turnbull <stephen@xemacs.org> parents: diff changeset	77 surely is, since that's how that member of XtResource is declared. It
726060ee587c First draft of g++ 4.3 warning removal patch. Builds. Needs ChangeLogs. Stephen J. Turnbull <stephen@xemacs.org> parents: diff changeset	78 doesn't hide potential problems, because XtPointer is a "generic" type in
726060ee587c First draft of g++ 4.3 warning removal patch. Builds. Needs ChangeLogs. Stephen J. Turnbull <stephen@xemacs.org> parents: diff changeset	79 any case -- the actual object will have a different type, that will be
726060ee587c First draft of g++ 4.3 warning removal patch. Builds. Needs ChangeLogs. Stephen J. Turnbull <stephen@xemacs.org> parents: diff changeset	80 cast to XtPointer. */
726060ee587c First draft of g++ 4.3 warning removal patch. Builds. Needs ChangeLogs. Stephen J. Turnbull <stephen@xemacs.org> parents: diff changeset	81
726060ee587c First draft of g++ 4.3 warning removal patch. Builds. Needs ChangeLogs. Stephen J. Turnbull <stephen@xemacs.org> parents: diff changeset	82 #define Xt_RESOURCE(name,_class,intrepr,type,member,extrepr,value) \
726060ee587c First draft of g++ 4.3 warning removal patch. Builds. Needs ChangeLogs. Stephen J. Turnbull <stephen@xemacs.org> parents: diff changeset	83 { (String) name, (String) _class, (String) intrepr, sizeof(type), \
726060ee587c First draft of g++ 4.3 warning removal patch. Builds. Needs ChangeLogs. Stephen J. Turnbull <stephen@xemacs.org> parents: diff changeset	84 member, extrepr, (XtPointer) value }
726060ee587c First draft of g++ 4.3 warning removal patch. Builds. Needs ChangeLogs. Stephen J. Turnbull <stephen@xemacs.org> parents: diff changeset	85
726060ee587c First draft of g++ 4.3 warning removal patch. Builds. Needs ChangeLogs. Stephen J. Turnbull <stephen@xemacs.org> parents: diff changeset	86 /* Wrap XtSetArg, with the same arguments.
726060ee587c First draft of g++ 4.3 warning removal patch. Builds. Needs ChangeLogs. Stephen J. Turnbull <stephen@xemacs.org> parents: diff changeset	87 The cast to String shuts up G++ 4.3's whining about const char . /
726060ee587c First draft of g++ 4.3 warning removal patch. Builds. Needs ChangeLogs. Stephen J. Turnbull <stephen@xemacs.org> parents: diff changeset	88
726060ee587c First draft of g++ 4.3 warning removal patch. Builds. Needs ChangeLogs. Stephen J. Turnbull <stephen@xemacs.org> parents: diff changeset	89 #define Xt_SET_ARG(al, resource, x) do { \
726060ee587c First draft of g++ 4.3 warning removal patch. Builds. Needs ChangeLogs. Stephen J. Turnbull <stephen@xemacs.org> parents: diff changeset	90 XtSetArg ((al), (String) (resource), (x)); \
726060ee587c First draft of g++ 4.3 warning removal patch. Builds. Needs ChangeLogs. Stephen J. Turnbull <stephen@xemacs.org> parents: diff changeset	91 } while (0)
726060ee587c First draft of g++ 4.3 warning removal patch. Builds. Needs ChangeLogs. Stephen J. Turnbull <stephen@xemacs.org> parents: diff changeset	92
726060ee587c First draft of g++ 4.3 warning removal patch. Builds. Needs ChangeLogs. Stephen J. Turnbull <stephen@xemacs.org> parents: diff changeset	93 /* Convenience macros for getting/setting one resource value. */
726060ee587c First draft of g++ 4.3 warning removal patch. Builds. Needs ChangeLogs. Stephen J. Turnbull <stephen@xemacs.org> parents: diff changeset	94
726060ee587c First draft of g++ 4.3 warning removal patch. Builds. Needs ChangeLogs. Stephen J. Turnbull <stephen@xemacs.org> parents: diff changeset	95 #define Xt_SET_VALUE(widget, resource, value) do { \
5016 2ade80e8c640 enable more warnings and fix them Ben Wing <ben@xemacs.org> parents: 4528 diff changeset	96 Arg al__; \
2ade80e8c640 enable more warnings and fix them Ben Wing <ben@xemacs.org> parents: 4528 diff changeset	97 Xt_SET_ARG (al__, resource, value); \
2ade80e8c640 enable more warnings and fix them Ben Wing <ben@xemacs.org> parents: 4528 diff changeset	98 XtSetValues (widget, &al__, 1); \
4528 726060ee587c First draft of g++ 4.3 warning removal patch. Builds. Needs ChangeLogs. Stephen J. Turnbull <stephen@xemacs.org> parents: diff changeset	99 } while (0)
726060ee587c First draft of g++ 4.3 warning removal patch. Builds. Needs ChangeLogs. Stephen J. Turnbull <stephen@xemacs.org> parents: diff changeset	100
726060ee587c First draft of g++ 4.3 warning removal patch. Builds. Needs ChangeLogs. Stephen J. Turnbull <stephen@xemacs.org> parents: diff changeset	101 #define Xt_GET_VALUE(widget, resource, location) do { \
5016 2ade80e8c640 enable more warnings and fix them Ben Wing <ben@xemacs.org> parents: 4528 diff changeset	102 Arg al__; \
2ade80e8c640 enable more warnings and fix them Ben Wing <ben@xemacs.org> parents: 4528 diff changeset	103 Xt_SET_ARG (al__, resource, location); \
2ade80e8c640 enable more warnings and fix them Ben Wing <ben@xemacs.org> parents: 4528 diff changeset	104 XtGetValues (widget, &al__, 1); \
4528 726060ee587c First draft of g++ 4.3 warning removal patch. Builds. Needs ChangeLogs. Stephen J. Turnbull <stephen@xemacs.org> parents: diff changeset	105 } while (0)
726060ee587c First draft of g++ 4.3 warning removal patch. Builds. Needs ChangeLogs. Stephen J. Turnbull <stephen@xemacs.org> parents: diff changeset	106
726060ee587c First draft of g++ 4.3 warning removal patch. Builds. Needs ChangeLogs. Stephen J. Turnbull <stephen@xemacs.org> parents: diff changeset	107 #endif /* INCLUDED_xt_wrappers_h_ */

Mercurial > hg > xemacs-beta

annotate lwlib/xt-wrappers.h @ 5906:4d5a5a80aba2