diff options
Diffstat (limited to 'contrib/cube/cubeparse.y')
| -rw-r--r-- | contrib/cube/cubeparse.y | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/contrib/cube/cubeparse.y b/contrib/cube/cubeparse.y index e867dc8731a..eefe5c47b99 100644 --- a/contrib/cube/cubeparse.y +++ b/contrib/cube/cubeparse.y @@ -2,7 +2,7 @@ /* NdBox = [(lowerleft),(upperright)] */ /* [(xLL(1)...xLL(N)),(xUR(1)...xUR(n))] */ -/* $PostgreSQL: pgsql/contrib/cube/cubeparse.y,v 1.17 2007/02/27 23:48:05 tgl Exp $ */ +/* $PostgreSQL: pgsql/contrib/cube/cubeparse.y,v 1.18 2008/09/02 20:37:54 tgl Exp $ */ #define YYPARSE_PARAM result /* need this to pass a pointer (void *) to yyparse */ #define YYSTYPE char * @@ -12,6 +12,17 @@ #include "cubedata.h" +/* + * Bison doesn't allocate anything that needs to live across parser calls, + * so we can easily have it use palloc instead of malloc. This prevents + * memory leaks if we error out during parsing. Note this only works with + * bison >= 2.0. However, in bison 1.875 the default is to use alloca() + * if possible, so there's not really much problem anyhow, at least if + * you're building with gcc. + */ +#define YYMALLOC palloc +#define YYFREE pfree + extern int cube_yylex(void); static char *scanbuf; |