annotate src/sysfloat.h @ 930:eaedf30d9d76

[xemacs-hg @ 2002-07-23 08:34:59 by youngs] 2002-07-15 Jerry James <james@xemacs.org> * make-docfile.c: Change whitespace and organization to reduce the size of the diff against FSF Emacs sources and synch to Emacs 21.2. Remove unused DO_REALLOC. Mark XEmacs changes and additions more clearly. Reintroduce previously deleted Emacs code inside #if 0 ... #endif. * make-docfile.c (next_extra_elc): Replace goto with do-while. * make-docfile.c (main): Put XEmacs-only args in one place. * make-docfile.c (write_c_args): Change buff to buf to match Emacs. Replace pointer arithmetic with simpler array syntax. * make-docfile.c (scan_c_file): Note that DEFSIMPLE and DEFPRED no longer exist. Correct the "name too long" test (off by one). Die with message if a DEFUN has no docstring instead of hanging. * make-docfile.c (scan_lisp_file): Introduce while loops used in Emacs sources to skip consecutive blank lines. 2002-07-21 John Paul Wallington <jpw@xemacs.org> * process.el (substitute-env-vars): New function; sync with GNU Emacs 21.1.50. (setenv): Add optional arg SUBSTITUTE-ENV-VARS; sync with GNU Emacs 21.1.50. 2002-07-20 Mike Sperber <mike@xemacs.org> * eval.c (run_post_gc_hook): Use more correct flags when running post-gc-hook. 2002-07-20 Mike Sperber <mike@xemacs.org> * process-unix.c (child_setup): Don't try to close file descriptors for chid process once again---it's already being done in close_process_descs. (unix_create_process): Call begin_dont_check_for_quit to inhibit unwanted interaction (and thus breaking of X event synchronicity) in the child. 2002-07-15 Jerry James <james@xemacs.org> * lisp.h: Make Qdll_error visible globally. * symbols.c (check_sane_subr): Revert 2002-06-26 change. Check only if !initialized. * symbols.c (check_module_subr): Add parameter. Duplicate check_sane_subr checks, but signal an error instead of asserting. * symbols.c (defsubr): Use check_module_subr parameter. * symbols.c (defsubr_macro): Ditto.
author youngs
date Tue, 23 Jul 2002 08:35:11 +0000
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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68
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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_ */