Mercurial > hg > octave-kai > gnulib-hg
annotate lib/eealloc.h @ 17101:99fa3b05f1c8
pipe-filter-gi, pipe-filter-ii: better use of 'inline'
* lib/pipe-filter-aux.c: New file.
* lib/pipe-filter-aux.h (PIPE_FILTER_AUX_INLINE): New macro.
Replace all uses of 'static inline' with it.
Use _GL_INLINE_HEADER_BEGIN, _GL_INLINE_HEADER_END.
* lib/pipe-filter-gi.c (filter_init, filter_cleanup)
(filter_retcode): No real need for inline here.
* modules/pipe-filter-gi, modules/pipe-filter-ii:
(Files): Add lib/pipe-filter-aux.c.
(Depends-on): Add extern-inline.
(configure.ac): Do not require AC_C_INLINE.
(lib_SOURCES): Add pipe-filter-aux.c.
| author | Paul Eggert <eggert@cs.ucla.edu> |
|---|---|
| date | Wed, 29 Aug 2012 22:17:49 -0700 |
| parents | 8250f2777afc |
| children | 9e72d3927af1 |
| rev | line source |
|---|---|
| 4919 | 1 /* Memory allocation with expensive empty allocations. |
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Jim Meyering <meyering@redhat.com>
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2 Copyright (C) 2003, 2008, 2010-2012 Free Software Foundation, Inc. |
| 4919 | 3 Written by Bruno Haible <bruno@clisp.org>, 2003, |
| 4 based on prior work by Jim Meyering. | |
| 5 | |
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Bruno Haible <bruno@clisp.org>
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6 This program is free software: you can redistribute it and/or modify |
| 4919 | 7 it under the terms of the GNU General Public License as published by |
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Bruno Haible <bruno@clisp.org>
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8 the Free Software Foundation; either version 3 of the License, or |
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bbbbbf4cd1c5
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Bruno Haible <bruno@clisp.org>
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9 (at your option) any later version. |
| 4919 | 10 |
| 11 This program is distributed in the hope that it will be useful, | |
| 12 but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 14 GNU General Public License for more details. | |
| 15 | |
| 16 You should have received a copy of the GNU General Public License | |
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17 along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
| 4919 | 18 |
| 19 #ifndef _EEALLOC_H | |
| 20 #define _EEALLOC_H | |
| 21 | |
| 22 /* malloc() and realloc() are allowed to return NULL when asked to allocate | |
| 23 a memory block of 0 bytes; this is not an out-of-memory condition. | |
| 24 (See ISO C 99 section 7.20.3.) In some places, this is not welcome, | |
| 25 because it requires extra checking (so as not to confuse a zero-sized | |
| 26 allocation with an out-of-memory condition). This file provides | |
| 27 malloc()/realloc() workalikes which return non-NULL pointers for | |
| 28 succeeding zero-sized allocations. GNU libc already defines malloc() | |
| 29 and realloc() this way; on such platforms the workalikes are aliased | |
| 30 to the original malloc()/realloc() functions. */ | |
| 31 | |
| 32 #include <stdlib.h> | |
| 33 | |
| 34 #if MALLOC_0_IS_NONNULL | |
| 35 # define eemalloc malloc | |
| 36 #else | |
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37 # if __GNUC__ >= 3 |
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38 static inline void *eemalloc (size_t n) |
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39 __attribute__ ((__malloc__)) |
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40 # if __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3) |
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41 __attribute__ ((__alloc_size__ (1))) |
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42 # endif |
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43 ; |
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44 # endif |
| 4919 | 45 static inline void * |
| 46 eemalloc (size_t n) | |
| 47 { | |
| 48 /* If n is zero, allocate a 1-byte block. */ | |
| 49 if (n == 0) | |
| 50 n = 1; | |
| 51 return malloc (n); | |
| 52 } | |
| 53 #endif | |
| 54 | |
| 55 #if REALLOC_0_IS_NONNULL | |
| 56 # define eerealloc realloc | |
| 57 #else | |
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58 # if __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3) |
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Bruno Haible <bruno@clisp.org>
parents:
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59 static inline void *eerealloc (void *p, size_t n) |
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Bruno Haible <bruno@clisp.org>
parents:
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60 __attribute__ ((__alloc_size__ (2))); |
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Bruno Haible <bruno@clisp.org>
parents:
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61 # endif |
| 4919 | 62 static inline void * |
| 63 eerealloc (void *p, size_t n) | |
| 64 { | |
| 65 /* If n is zero, allocate or keep a 1-byte block. */ | |
| 66 if (n == 0) | |
| 67 n = 1; | |
| 68 return realloc (p, n); | |
| 69 } | |
| 70 #endif | |
| 71 | |
| 72 /* Maybe we should also define variants | |
| 73 eenmalloc (size_t n, size_t s) - behaves like eemalloc (n * s) | |
| 74 eezalloc (size_t n) - like eemalloc followed by memset 0 | |
| 75 eecalloc (size_t n, size_t s) - like eemalloc (n * s) followed by memset 0 | |
| 76 eenrealloc (void *p, size_t n, size_t s) - like eerealloc (p, n * s) | |
| 77 If this would be useful in your application. please speak up. */ | |
| 78 | |
| 79 #endif /* _EEALLOC_H */ |