Set errno on failures.

1 files changed, 2 insertions, 0 deletions

diff --git a/libdimension/reflective.c b/libdimension/reflective.c
index 726bf8d..2e90b8f 100644
--- a/libdimension/reflective.c
+++ b/libdimension/reflective.c
@@ -19,6 +19,7 @@
  *************************************************************************/
 
 #include "dimension.h"
+#include <errno.h>
 #include <stdlib.h> /* For malloc */
 #include <math.h>
 
@@ -53,6 +54,7 @@ dmnsn_new_reflective_finish(dmnsn_color min, dmnsn_color max, double falloff)
     dmnsn_reflection_params *params = malloc(sizeof(dmnsn_reflection_params));
     if (!params) {
       dmnsn_delete_finish(finish);
+      errno = ENOMEM;
       return NULL;
     }