diff options
Diffstat (limited to 'gcc/cp/parse.y')
| -rw-r--r-- | gcc/cp/parse.y | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/gcc/cp/parse.y b/gcc/cp/parse.y index 627e734..5454353 100644 --- a/gcc/cp/parse.y +++ b/gcc/cp/parse.y @@ -48,6 +48,40 @@ extern struct obstack permanent_obstack; /* Like YYERROR but do call yyerror. */ #define YYERROR1 { yyerror ("syntax error"); YYERROR; } +/* Like the default stack expander, except (1) use realloc when possible, + and (2) impose no hard maxiumum on stack size. */ +#define yyoverflow(MSG, SS, SSSIZE, VS, VSSIZE, YYSSZ) \ +do { \ + size_t newsize; \ + short *newss; \ + YYSTYPE *newvs; \ + newsize = *(YYSSZ) *= 2; \ + if (yyfree_stacks) \ + { \ + newss = (short *) \ + really_call_realloc (*(SS), newsize * sizeof (short)); \ + newvs = (YYSTYPE *) \ + really_call_realloc (*(VS), newsize * sizeof (YYSTYPE)); \ + } \ + else \ + { \ + newss = (short *) really_call_malloc (newsize * sizeof (short)); \ + if (newss) \ + memcpy (newss, *(SS), (SSSIZE)); \ + newvs = (YYSTYPE *) really_call_malloc (newsize * sizeof (YYSTYPE)); \ + if (newvs) \ + memcpy (newvs, *(VS), (VSSIZE)); \ + } \ + if (!newss || !newvs) \ + { \ + yyerror (MSG); \ + return 2; \ + } \ + yyfree_stacks = 1; \ + *(SS) = newss; \ + *(VS) = newvs; \ +} while (0) + #define OP0(NODE) (TREE_OPERAND (NODE, 0)) #define OP1(NODE) (TREE_OPERAND (NODE, 1)) |