Mercurial > gnulib
annotate lib/minmax.h @ 40231:9b3c79fdfe0b
strtod: fix clash with strtold
Problem reported for RHEL 5 by Jesse Caldwell (Bug#34817).
* lib/strtod.c (compute_minus_zero, minus_zero):
Simplify by remving the macro / external variable,
and having just a function. User changed. This avoids
the need for an external variable that might clash.
| author | Paul Eggert <eggert@cs.ucla.edu> |
|---|---|
| date | Mon, 11 Mar 2019 16:40:29 -0700 |
| parents | b06060465f09 |
| children |
| rev | line source |
|---|---|
| 4207 | 1 /* MIN, MAX macros. |
|
40057
b06060465f09
maint: Run 'make update-copyright'
Paul Eggert <eggert@cs.ucla.edu>
parents:
19484
diff
changeset
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2 Copyright (C) 1995, 1998, 2001, 2003, 2005, 2009-2019 Free Software |
|
12559
c2cbabec01dd
update nearly all FSF copyright year lists to include 2010
Jim Meyering <meyering@redhat.com>
parents:
12518
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changeset
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3 Foundation, Inc. |
| 4207 | 4 |
| 5 This program is free software; you can redistribute it and/or modify | |
| 6 it under the terms of the GNU General Public License as published by | |
| 7 the Free Software Foundation; either version 2, or (at your option) | |
| 8 any later version. | |
| 9 | |
| 10 This program is distributed in the hope that it will be useful, | |
| 11 but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 13 GNU General Public License for more details. | |
| 14 | |
| 15 You should have received a copy of the GNU General Public License | |
| 19190 | 16 along with this program; if not, see <https://www.gnu.org/licenses/>. */ |
| 4207 | 17 |
| 18 #ifndef _MINMAX_H | |
| 19 #define _MINMAX_H | |
| 20 | |
| 4211 | 21 /* Note: MIN, MAX are also defined in <sys/param.h> on some systems |
| 22 (glibc, IRIX, HP-UX, OSF/1). Therefore you might get warnings about | |
| 23 MIN, MAX macro redefinitions on some systems; the workaround is to | |
| 24 #include this file as the last one among the #include list. */ | |
| 25 | |
| 4207 | 26 /* Before we define the following symbols we get the <limits.h> file |
|
5882
4166e2857787
Add autoconf tests for the 'minmax' module.
Bruno Haible <bruno@clisp.org>
parents:
5848
diff
changeset
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27 since otherwise we get redefinitions on some systems if <limits.h> is |
|
4166e2857787
Add autoconf tests for the 'minmax' module.
Bruno Haible <bruno@clisp.org>
parents:
5848
diff
changeset
|
28 included after this file. Likewise for <sys/param.h>. |
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4166e2857787
Add autoconf tests for the 'minmax' module.
Bruno Haible <bruno@clisp.org>
parents:
5848
diff
changeset
|
29 If more than one of these system headers define MIN and MAX, pick just |
|
4166e2857787
Add autoconf tests for the 'minmax' module.
Bruno Haible <bruno@clisp.org>
parents:
5848
diff
changeset
|
30 one of the headers (because the definitions most likely are the same). */ |
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4166e2857787
Add autoconf tests for the 'minmax' module.
Bruno Haible <bruno@clisp.org>
parents:
5848
diff
changeset
|
31 #if HAVE_MINMAX_IN_LIMITS_H |
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4166e2857787
Add autoconf tests for the 'minmax' module.
Bruno Haible <bruno@clisp.org>
parents:
5848
diff
changeset
|
32 # include <limits.h> |
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4166e2857787
Add autoconf tests for the 'minmax' module.
Bruno Haible <bruno@clisp.org>
parents:
5848
diff
changeset
|
33 #elif HAVE_MINMAX_IN_SYS_PARAM_H |
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4166e2857787
Add autoconf tests for the 'minmax' module.
Bruno Haible <bruno@clisp.org>
parents:
5848
diff
changeset
|
34 # include <sys/param.h> |
|
4166e2857787
Add autoconf tests for the 'minmax' module.
Bruno Haible <bruno@clisp.org>
parents:
5848
diff
changeset
|
35 #endif |
| 4207 | 36 |
|
4754
c6f70c2457d2
Omit the special code that used __typeof__ for MIN and MAX,
Paul Eggert <eggert@cs.ucla.edu>
parents:
4211
diff
changeset
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37 /* Note: MIN and MAX should be used with two arguments of the |
| 4207 | 38 same type. They might not return the minimum and maximum of their two |
| 39 arguments, if the arguments have different types or have unusual | |
| 40 floating-point values. For example, on a typical host with 32-bit 'int', | |
| 41 64-bit 'long long', and 64-bit IEEE 754 'double' types: | |
| 42 | |
| 43 MAX (-1, 2147483648) returns 4294967295. | |
| 44 MAX (9007199254740992.0, 9007199254740993) returns 9007199254740992.0. | |
| 45 MAX (NaN, 0.0) returns 0.0. | |
| 46 MAX (+0.0, -0.0) returns -0.0. | |
| 47 | |
| 48 and in each case the answer is in some sense bogus. */ | |
| 49 | |
| 50 /* MAX(a,b) returns the maximum of A and B. */ | |
| 51 #ifndef MAX | |
|
4754
c6f70c2457d2
Omit the special code that used __typeof__ for MIN and MAX,
Paul Eggert <eggert@cs.ucla.edu>
parents:
4211
diff
changeset
|
52 # define MAX(a,b) ((a) > (b) ? (a) : (b)) |
| 4207 | 53 #endif |
| 54 | |
| 55 /* MIN(a,b) returns the minimum of A and B. */ | |
| 56 #ifndef MIN | |
|
4754
c6f70c2457d2
Omit the special code that used __typeof__ for MIN and MAX,
Paul Eggert <eggert@cs.ucla.edu>
parents:
4211
diff
changeset
|
57 # define MIN(a,b) ((a) < (b) ? (a) : (b)) |
| 4207 | 58 #endif |
| 59 | |
| 60 #endif /* _MINMAX_H */ |