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-rw-r--r--evaluator.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/evaluator.c b/evaluator.c
index c4c46a5..e2b103f 100644
--- a/evaluator.c
+++ b/evaluator.c
@@ -310,6 +310,10 @@ double R2N(RESULT * result)
return 0.0;
}
+ if (result->type == 0) {
+ return 0.0;
+ }
+
if (result->type & R_NUMBER) {
return result->number;
}
@@ -332,6 +336,10 @@ char *R2S(RESULT * result)
return NULL;
}
+ if (result->type == 0) {
+ return NULL;
+ }
+
if (result->type & R_STRING) {
return result->string;
}