Add testcase for mp_add_d('0',...) This closes #65
diff --git a/demo/demo.c b/demo/demo.c
index c3990a0..4b871cd 100644
--- a/demo/demo.c
+++ b/demo/demo.c
@@ -222,6 +222,12 @@ int main(void)
if (mp_get_int(&a) != 1) {
return EXIT_FAILURE;
}
+ mp_zero(&a);
+ // a: 0-> a: 6
+ mp_add_d(&a, 6, &a);
+ if (mp_get_int(&a) != 6) {
+ return EXIT_FAILURE;
+ }
mp_set_int(&a, 0);