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-rw-r--r--contrib/byacc/yaccpar.skel6
1 files changed, 3 insertions, 3 deletions
diff --git a/contrib/byacc/yaccpar.skel b/contrib/byacc/yaccpar.skel
index 32e2d1560537..f12e0d29cca9 100644
--- a/contrib/byacc/yaccpar.skel
+++ b/contrib/byacc/yaccpar.skel
@@ -119,14 +119,14 @@ static int yygrowstack(YYSTACKDATA *data)
i = (int) (data->s_mark - data->s_base);
newss = (YYINT *)realloc(data->s_base, newsize * sizeof(*newss));
- if (newss == 0)
+ if (newss == NULL)
return YYENOMEM;
data->s_base = newss;
data->s_mark = newss + i;
newvs = (YYSTYPE *)realloc(data->l_base, newsize * sizeof(*newvs));
- if (newvs == 0)
+ if (newvs == NULL)
return YYENOMEM;
data->l_base = newvs;
@@ -161,7 +161,7 @@ YYPARSE_DECL()
#if YYDEBUG
const char *yys;
- if ((yys = getenv("YYDEBUG")) != 0)
+ if ((yys = getenv("YYDEBUG")) != NULL)
{
yyn = *yys;
if (yyn >= '0' && yyn <= '9')