Mercurial > hg > xemacs-beta
annotate src/sysfloat.h @ 5437:002cb5224e4f
Merge with 21.5 trunk.
| author | Mats Lidell <matsl@xemacs.org> |
|---|---|
| date | Mon, 15 Nov 2010 22:33:52 +0100 |
| parents | 308d34e9f07d |
| children |
| rev | line source |
|---|---|
| 428 | 1 /* |
| 2 Copyright (C) 1995 Free Software Foundation, Inc. | |
| 3 | |
| 4 This file is part of XEmacs. | |
| 5 | |
|
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6 XEmacs is free software: you can redistribute it and/or modify it |
| 428 | 7 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:
771
diff
changeset
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8 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:
771
diff
changeset
|
9 option) any later version. |
| 428 | 10 |
| 11 XEmacs is distributed in the hope that it will be useful, but WITHOUT | |
| 12 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 13 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 14 for more details. | |
| 15 | |
| 16 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:
771
diff
changeset
|
17 along with XEmacs. If not, see <http://www.gnu.org/licenses/>. */ |
| 428 | 18 |
| 19 /* Synched up with: Not really in FSF. */ | |
| 20 | |
| 440 | 21 #ifndef INCLUDED_sysfloat_h_ |
| 22 #define INCLUDED_sysfloat_h_ | |
| 23 | |
| 442 | 24 #if defined(LINUX) && !(defined (__GLIBC__) && (__GLIBC__ >= 2)) |
| 428 | 25 /* These are redefined (correctly, but differently) in values.h. */ |
| 26 #undef INTBITS | |
| 27 #undef LONGBITS | |
| 28 #undef SHORTBITS | |
| 29 #endif | |
| 30 | |
| 31 #include <math.h> | |
| 32 | |
| 442 | 33 #ifdef WIN32_NATIVE |
| 428 | 34 /* A quirky way to obtain logb prototype */ |
| 35 #include <float.h> | |
| 36 #define logb _logb | |
| 37 #endif | |
| 38 | |
| 39 #ifdef HAVE_MATHERR | |
| 40 /* Work around symbol conflict on Linux/glibc */ | |
| 41 #ifndef DOMAIN | |
| 42 /* SysV matherr is not defined if _BSD_SOURCE is used, and on Linux X11 */ | |
| 43 /* is compiled with _BSD_SOURCE which can also change the size of other */ | |
| 44 /* types. The configure test for matherr is broken. */ | |
| 45 /* Bah. Good riddance to bad rubbish. */ | |
| 46 #undef HAVE_MATHERR | |
| 47 #endif | |
| 48 #endif | |
| 49 | |
| 50 #ifdef NO_MATHERR | |
| 51 #undef HAVE_MATHERR | |
| 52 #endif | |
| 53 | |
| 54 #ifdef HAVE_MATHERR | |
| 55 # ifdef FLOAT_CHECK_ERRNO | |
| 56 # undef FLOAT_CHECK_ERRNO | |
| 57 # endif | |
| 58 # ifdef FLOAT_CHECK_DOMAIN | |
| 59 # undef FLOAT_CHECK_DOMAIN | |
| 60 # endif | |
| 61 #endif | |
| 62 | |
| 63 #ifndef NO_FLOAT_CHECK_ERRNO | |
| 64 #define FLOAT_CHECK_ERRNO | |
| 65 #endif | |
| 66 | |
| 67 #ifdef FLOAT_CHECK_ERRNO | |
| 68 # include <errno.h> | |
| 69 #endif | |
| 70 | |
| 71 #ifndef isnan | |
| 72 # define isnan(x) ((x) != (x)) | |
| 73 #endif | |
| 74 | |
| 440 | 75 #endif /* INCLUDED_sysfloat_h_ */ |