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maint: port better to non-GCC compilers

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This can be helpful in porting to compilers like Oracle Developer
Studio that support some but not all GCC attributes.
* lib/wordsplit.c (FALLTHROUGH): Remove; now done by attribute.h.
* lib/wordsplit.h (__WORDSPLIT_ATTRIBUTE_FORMAT): Remove;
all uses replaced by ATTRIBUTE_FORMAT.
* lib/wordsplit.h, src/buffer.c, src/common.h, src/compare.c:
* src/sparse.c, src/system.c, src/xheader.c:
Prefer ATTRIBUTE_FORMAT, MAYBE_UNUSED, _Noreturn, etc. to
__attribute__.
This commit is contained in:
Paul Eggert
2021-02-27 18:42:58 -08:00
parent ace146f6a4
commit f4e2411bf5
8 changed files with 77 additions and 95 deletions
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31
lib/wordsplit.h
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@@ -18,12 +18,7 @@
#define __WORDSPLIT_H
#include <stddef.h>
#if 2 < __GNUC__ + (7 <= __GNUC_MINOR__)
# define __WORDSPLIT_ATTRIBUTE_FORMAT(spec) __attribute__ ((__format__ spec))
#else
# define __WORDSPLIT_ATTRIBUTE_FORMAT(spec) /* empty */
#endif
#include <attribute.h>
typedef struct wordsplit wordsplit_t;
@@ -36,16 +31,16 @@ typedef struct wordsplit wordsplit_t;
must be set (or unset, if starting with !) in ws_flags (if starting with
WRDSF_) or ws_options (if starting with WRDSO_) to initialize or use the
given member.
If not redefined explicitly, most of them are set to some reasonable
default value upon entry to wordsplit(). */
struct wordsplit
struct wordsplit
{
size_t ws_wordc; /* [Output] Number of words in ws_wordv. */
char **ws_wordv; /* [Output] Array of parsed out words. */
size_t ws_offs; /* [Input] (WRDSF_DOOFFS) Number of initial
elements in ws_wordv to fill with NULLs. */
size_t ws_wordn; /* Number of elements ws_wordv can accomodate. */
size_t ws_wordn; /* Number of elements ws_wordv can accomodate. */
unsigned ws_flags; /* [Input] Flags passed to wordsplit. */
unsigned ws_options; /* [Input] (WRDSF_OPTIONS)
Additional options. */
@@ -62,11 +57,11 @@ struct wordsplit
/* [Input] (WRDSF_ALLOC_DIE) Function called when
out of memory. Must not return. */
void (*ws_error) (const char *, ...)
__attribute__ ((__format__ (__printf__, 1, 2)));
ATTRIBUTE_FORMAT ((printf, 1, 2));
/* [Input] (WRDSF_ERROR) Function used for error
reporting */
void (*ws_debug) (const char *, ...)
__attribute__ ((__format__ (__printf__, 1, 2)));
ATTRIBUTE_FORMAT ((printf, 1, 2));
/* [Input] (WRDSF_DEBUG) Function used for debug
output. */
const char **ws_env; /* [Input] (WRDSF_ENV, !WRDSF_NOVAR) Array of
@@ -75,7 +70,7 @@ struct wordsplit
char **ws_envbuf;
size_t ws_envidx;
size_t ws_envsiz;
int (*ws_getvar) (char **ret, const char *var, size_t len, void *clos);
/* [Input] (WRDSF_GETVAR, !WRDSF_NOVAR) Looks up
the name VAR (LEN bytes long) in the table of
@@ -100,8 +95,8 @@ struct wordsplit
See ws_getvar for a discussion of possible
return values. */
const char *ws_input; /* Input string (the S argument to wordsplit. */
const char *ws_input; /* Input string (the S argument to wordsplit. */
size_t ws_len; /* Length of ws_input. */
size_t ws_endp; /* Points past the last processed byte in
ws_input. */
@@ -221,9 +216,9 @@ struct wordsplit
/* Handle hex escapes in quoted strings */
#define WRDSO_XESC_QUOTE 0x00000400
#define WRDSO_BSKEEP WRDSO_BSKEEP_WORD
#define WRDSO_OESC WRDSO_OESC_WORD
#define WRDSO_XESC WRDSO_XESC_WORD
#define WRDSO_BSKEEP WRDSO_BSKEEP_WORD
#define WRDSO_OESC WRDSO_OESC_WORD
#define WRDSO_XESC WRDSO_XESC_WORD
/* Indices into ws_escape */
#define WRDSX_WORD 0
@@ -254,7 +249,7 @@ void wordsplit_free_envbuf (wordsplit_t *ws);
int wordsplit_get_words (wordsplit_t *ws, size_t *wordc, char ***wordv);
static inline void wordsplit_getwords (wordsplit_t *ws, size_t *wordc, char ***wordv)
__attribute__ ((deprecated));
DEPRECATED;
static inline void
wordsplit_getwords (wordsplit_t *ws, size_t *wordc, char ***wordv)