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-rw-r--r--src/advtime.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/src/advtime.c b/src/advtime.c
index e4cd9a9..402da31 100644
--- a/src/advtime.c
+++ b/src/advtime.c
@@ -113,8 +113,10 @@ main(int argc, char **argv)
if (diff > 40.0) {
snprintf(filename, BUFSIZ, "img/%04i.pgm", i);
frame_mix(frame_a, frame_b);
- pgm_save(frame_a->data, frame_a->stride, frame_a->width,
- frame_a->height, filename);
+ if (pgm_save(frame_a->data, frame_a->stride,
+ frame_a->width, frame_a->height,
+ filename) < 0)
+ exit(EXIT_FAILURE);
}
printf("\n");