standalone: Do not output sign if float is NaN

Matches behavior in Python.
2023-10-09 16:02:15 +08:00 · 2023-10-09 16:02:15 +08:00 · 630897b779
commit 630897b779
parent e546535df0
1 changed files with 6 additions and 1 deletions
--- a/nac3standalone/demo/demo.c
+++ b/nac3standalone/demo/demo.c
@ -1,3 +1,4 @@
+#include <math.h>
 #include <stdbool.h>
 #include <stdint.h>
 #include <stdio.h>
@ -33,7 +34,11 @@ void output_uint64(uint64_t x) {
 }

 void output_float64(double x) {
-    printf("%f\n", x);
+    if (isnan(x)) {
+        puts("nan");
+    } else {
+        printf("%f\n", x);
+    }
 }

 void output_asciiart(int32_t x) {