annotate src/sysfloat.h @ 4917:fce43cb76a1c

xlike cleanup, documentation -------------------- ChangeLog entries follow: -------------------- man/ChangeLog addition: 2010-02-03 Ben Wing <ben@xemacs.org> * internals/internals.texi (Top): * internals/internals.texi (Evaluation; Stack Frames; Bindings): * internals/internals.texi (Ben's README): * internals/internals.texi (Consoles; Devices; Frames; Windows): * internals/internals.texi (Window Hierarchy): * internals/internals.texi (The Window Object): * internals/internals.texi (Modules for the Basic Displayable Lisp Objects): * internals/internals.texi (Window-System Support): * internals/internals.texi (Creating a Window-System Type): * internals/internals.texi (Discussion -- Garbage Collection): Update the part at the top about how to maintain the file with more tips. Add a chapter on "window-system support" describing in a general way how the support for different window systems/device types works, including the separation between device-independent and device-dependent parts, device methods, the specific device types and the "xlike" pseudo-type. src/ChangeLog addition: 2010-02-03 Ben Wing <ben@xemacs.org> * Makefile.in.in: * Makefile.in.in (x_objs): * Makefile.in.in (gtk_gui_objs): * console-xlike-inc.h: * depend: * device-x.c: * emacs.c: * gccache-gtk.h: * gccache-gtk.h (gc_cache_lookup): * gccache-x.c: * gccache-x.c (GCCACHE_HASH): * gccache-x.h: * toolbar-gtk.c: * toolbar-gtk.c (gtk_initialize_frame_toolbars): * toolbar-x.c: * toolbar-x.c (x_initialize_frame_toolbars): * toolbar-xlike.c: * toolbar-xlike.c (xlike_draw_blank_toolbar_button): * toolbar-xlike.c (xlike_output_toolbar_button): * toolbar-xlike.c (xlike_get_button_size): * toolbar-xlike.c (XLIKE_OUTPUT_BUTTONS_LOOP): * toolbar-xlike.c (xlike_output_toolbar): * toolbar-xlike.c (xlike_clear_toolbar): * toolbar-xlike.c (xlike_output_frame_toolbars): * toolbar-xlike.c (xlike_clear_frame_toolbars): * toolbar-xlike.c (xlike_redraw_exposed_toolbar): * toolbar-xlike.c (xlike_redraw_exposed_toolbars): * toolbar-xlike.c (xlike_redraw_frame_toolbars): * toolbar-xlike.h: * toolbar-xlike.h (xlike_clear_frame_toolbars): Rename some files to make them consistent with general naming rules: xgccache.c -> gccache-x.c xgccache.h -> gccache-x.h toolbar-common.c -> toolbar-xlike.c toolbar-common.h -> toolbar-xlike.h Fix include-file references. Also change the names of functions in now-named toolbar-xlike.c to be xlike_foo() instead of common_foo(). Add a longish comment in console-xlike-inc.h describing the "xlike" system, how it works and what the various files are used for.
author Ben Wing <ben@xemacs.org>
date Wed, 03 Feb 2010 02:46:50 -0600
parents 943eaba38521
children 308d34e9f07d
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1 /*
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2 Copyright (C) 1995 Free Software Foundation, Inc.
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3
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4 This file is part of XEmacs.
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5
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6 XEmacs is free software; you can redistribute it and/or modify it
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7 under the terms of the GNU General Public License as published by the
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8 Free Software Foundation; either version 2, or (at your option) any
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9 later version.
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10
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11 XEmacs is distributed in the hope that it will be useful, but WITHOUT
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12 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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13 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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14 for more details.
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15
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16 You should have received a copy of the GNU General Public License
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17 along with XEmacs; see the file COPYING. If not, write to
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18 the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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19 Boston, MA 02111-1307, USA. */
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20
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21 /* Synched up with: Not really in FSF. */
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22
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23 #ifndef INCLUDED_sysfloat_h_
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24 #define INCLUDED_sysfloat_h_
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25
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26 #if defined(LINUX) && !(defined (__GLIBC__) && (__GLIBC__ >= 2))
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27 /* These are redefined (correctly, but differently) in values.h. */
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28 #undef INTBITS
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29 #undef LONGBITS
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30 #undef SHORTBITS
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31 #endif
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32
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33 #include <math.h>
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34
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35 #ifdef WIN32_NATIVE
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36 /* A quirky way to obtain logb prototype */
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37 #include <float.h>
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38 #define logb _logb
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39 #endif
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40
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41 #ifdef HAVE_MATHERR
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42 /* Work around symbol conflict on Linux/glibc */
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43 #ifndef DOMAIN
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44 /* SysV matherr is not defined if _BSD_SOURCE is used, and on Linux X11 */
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45 /* is compiled with _BSD_SOURCE which can also change the size of other */
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46 /* types. The configure test for matherr is broken. */
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47 /* Bah. Good riddance to bad rubbish. */
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48 #undef HAVE_MATHERR
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49 #endif
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50 #endif
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51
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52 #ifdef NO_MATHERR
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53 #undef HAVE_MATHERR
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54 #endif
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55
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56 #ifdef HAVE_MATHERR
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57 # ifdef FLOAT_CHECK_ERRNO
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58 # undef FLOAT_CHECK_ERRNO
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59 # endif
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60 # ifdef FLOAT_CHECK_DOMAIN
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61 # undef FLOAT_CHECK_DOMAIN
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62 # endif
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63 #endif
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64
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65 #ifndef NO_FLOAT_CHECK_ERRNO
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66 #define FLOAT_CHECK_ERRNO
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67 #endif
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69 #ifdef FLOAT_CHECK_ERRNO
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70 # include <errno.h>
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71 #endif
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72
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73 #ifndef isnan
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74 # define isnan(x) ((x) != (x))
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75 #endif
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76
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77 #endif /* INCLUDED_sysfloat_h_ */