annotate src/sysfloat.h @ 5916:1152e0091f8c

Avoid confusion about ELC vs. source file encoding, #'load, #'load-internal. lisp/ChangeLog addition: 2015-06-03 Aidan Kehoe <kehoea@parhasard.net> * code-files.el (load): Revise this to respect load-ignore-out-of-date-elc-files, rather than leaving that to #'load-internal. Avoids a corner case where the source and the compiled file have different, incompatible encodings. Move the call to #'substitute-in-file-name here. No longer check for a zero-length filename, since #'load-internal no longer chokes on same and errors correctly. src/ChangeLog addition: 2015-06-03 Aidan Kehoe <kehoea@parhasard.net> * lread.c (Fload_internal): Delegate calling the handler and #'substitute-in-file-name to #'load. Error correctly with a zero-length file name, instead of giving a bus error on my machine. Delegate the check for out-of-date ELC files to #'load, avoiding a bug where the encoding of the ELC file and the source file differed. * lread.c (PRINT_LOADING_MESSAGE_1): This is simplified, now we no longer have to talk about out-of-date ELC files. tests/ChangeLog addition: 2015-06-03 Aidan Kehoe <kehoea@parhasard.net> * automated/file-tests.el: Gross sanity check for #'load and #'load-internal with a zero-length FILE, something that crashed until today.
author Aidan Kehoe <kehoea@parhasard.net>
date Wed, 03 Jun 2015 20:13:07 +0100
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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 3 of the License, or (at your
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9 option) any 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. If not, see <http://www.gnu.org/licenses/>. */
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19 /* Synched up with: Not really in FSF. */
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20
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21 #ifndef INCLUDED_sysfloat_h_
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22 #define INCLUDED_sysfloat_h_
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23
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24 #if defined(LINUX) && !(defined (__GLIBC__) && (__GLIBC__ >= 2))
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25 /* These are redefined (correctly, but differently) in values.h. */
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26 #undef INTBITS
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27 #undef LONGBITS
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28 #undef SHORTBITS
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29 #endif
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30
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31 #include <math.h>
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33 #ifdef WIN32_NATIVE
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34 /* A quirky way to obtain logb prototype */
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35 #include <float.h>
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36 #define logb _logb
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37 #endif
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38
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39 #ifdef HAVE_MATHERR
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40 /* Work around symbol conflict on Linux/glibc */
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41 #ifndef DOMAIN
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42 /* SysV matherr is not defined if _BSD_SOURCE is used, and on Linux X11 */
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43 /* is compiled with _BSD_SOURCE which can also change the size of other */
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44 /* types. The configure test for matherr is broken. */
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45 /* Bah. Good riddance to bad rubbish. */
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46 #undef HAVE_MATHERR
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47 #endif
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48 #endif
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49
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50 #ifdef NO_MATHERR
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51 #undef HAVE_MATHERR
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52 #endif
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54 #ifdef HAVE_MATHERR
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55 # ifdef FLOAT_CHECK_ERRNO
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56 # undef FLOAT_CHECK_ERRNO
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57 # endif
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58 # ifdef FLOAT_CHECK_DOMAIN
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59 # undef FLOAT_CHECK_DOMAIN
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60 # endif
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61 #endif
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63 #ifndef NO_FLOAT_CHECK_ERRNO
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64 #define FLOAT_CHECK_ERRNO
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65 #endif
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67 #ifdef FLOAT_CHECK_ERRNO
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68 # include <errno.h>
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69 #endif
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70
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71 #ifndef isnan
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72 # define isnan(x) ((x) != (x))
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73 #endif
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75 #endif /* INCLUDED_sysfloat_h_ */