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skeletons: update the handling of compiler attributes

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* data/c.m4 (b4_attribute_define): Instead of defining __attribute__,
define YY_ATTRIBUTE conditionally.
(YY_ATTRIBUTE_PURE, YY_ATTRIBUTE_UNUSED, _Noreturn): New.
Use them.
* data/glr.c: Use them.
This commit is contained in:
Akim Demaille
2013-10-23 10:57:09 +02:00
parent 5407fc7d76
commit 3cc83855d9
2 changed files with 33 additions and 19 deletions
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19
data/glr.c
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@@ -445,9 +445,9 @@ int yydebug;
struct yyGLRStack;
static void yypstack (struct yyGLRStack* yystackp, size_t yyk)
__attribute__ ((__unused__));
YY_ATTRIBUTE_UNUSED;
static void yypdumpstack (struct yyGLRStack* yystackp)
__attribute__ ((__unused__));
YY_ATTRIBUTE_UNUSED;
#else /* !]b4_api_PREFIX[DEBUG */
@@ -669,9 +669,7 @@ struct yyGLRStack {
static void yyexpandGLRStack (yyGLRStack* yystackp);
#endif
static void yyFail (yyGLRStack* yystackp]b4_pure_formals[, const char* yymsg)
__attribute__ ((__noreturn__));
static void
static _Noreturn void
yyFail (yyGLRStack* yystackp]b4_pure_formals[, const char* yymsg)
{
if (yymsg != YY_NULL)
@@ -679,9 +677,7 @@ yyFail (yyGLRStack* yystackp]b4_pure_formals[, const char* yymsg)
YYLONGJMP (yystackp->yyexception_buffer, 1);
}
static void yyMemoryExhausted (yyGLRStack* yystackp)
__attribute__ ((__noreturn__));
static void
static _Noreturn void
yyMemoryExhausted (yyGLRStack* yystackp)
{
YYLONGJMP (yystackp->yyexception_buffer, 2);
@@ -702,7 +698,7 @@ yytokenName (yySymbol yytoken)
/** Fill in YYVSP[YYLOW1 .. YYLOW0-1] from the chain of states starting
* at YYVSP[YYLOW0].yystate.yypred. Leaves YYVSP[YYLOW1].yystate.yypred
* containing the pointer to the next state in the chain. */
static void yyfillin (yyGLRStackItem *, int, int) __attribute__ ((__unused__));
static void yyfillin (yyGLRStackItem *, int, int) YY_ATTRIBUTE_UNUSED;
static void
yyfillin (yyGLRStackItem *yyvsp, int yylow0, int yylow1)
{
@@ -729,7 +725,7 @@ yyfillin (yyGLRStackItem *yyvsp, int yylow0, int yylow1)
* YYVSP[YYLOW1 .. *YYLOW-1] as in yyfillin and set *YYLOW = YYLOW1.
* For convenience, always return YYLOW1. */
static inline int yyfill (yyGLRStackItem *, int *, int, yybool)
__attribute__ ((__unused__));
YY_ATTRIBUTE_UNUSED;
static inline int
yyfill (yyGLRStackItem *yyvsp, int *yylow, int yylow1, yybool yynormal)
{
@@ -751,8 +747,7 @@ yyuserAction (yyRuleNum yyn, size_t yyrhslen, yyGLRStackItem* yyvsp,
yyGLRStack* yystackp,
YYSTYPE* yyvalp]b4_locuser_formals[)
{
yybool yynormal __attribute__ ((__unused__)) =
(yystackp->yysplitPoint == YY_NULL);
yybool yynormal YY_ATTRIBUTE_UNUSED = (yystackp->yysplitPoint == YY_NULL);
int yylow;
]b4_parse_param_use([yyvalp], [yylocp])dnl
[ YYUSE (yyrhslen);