Reset the output buffer on render

Reset the output buffer when TMPL_render() is called so that only only
the latest render errors are preserved.

1 files changed, 6 insertions, 0 deletions

diff --git a/src/ctemplates.c b/src/ctemplates.c
index fb055e6..74d6098 100644
--- a/src/ctemplates.c
+++ b/src/ctemplates.c
@@ -1257,9 +1257,15 @@ TMPL_render_helper(struct TMPL_templates* t, struct TMPL_varlist* varlist){
 char*
 TMPL_render(struct TMPL_templates* t, struct TMPL_varlist* varlist, size_t* size_p){
 	int err;
+	/*Reset the output buffer*/
 	if(t->out != NULL){
 		free_tmpl_buf(t->out);
 	}
+	/*Reset the error buffer, if needed*/
+	if(t->errout != NULL && t->errout->total_len > 0){
+		free_tmpl_buf(t->errout);
+		t->errout = alloc_tmpl_buf();
+	}
 	t->out = alloc_tmpl_buf();
 	t->cursor = t->roottag;
 	err = TMPL_render_helper(t,varlist);