ref: 6ab15be07c62e3d31c916084a377ff3b6ba7d0ad
parent: 8027983841965d3dd3ea21c224db7271656cbc8e
author: eli <eli@owl>
date: Sat Jul 5 13:25:07 EDT 2025
program with function for rounding a number
--- /dev/null
+++ b/round.c
@@ -1,0 +1,34 @@
+#include <u.h>
+#include <libc.h>
+
+float round(float in) {+ float f;
+
+ f = fmod(in, 1.0);
+
+ if (in > 0) {+ if (f < 0.5)
+ return floor(in);
+ return ceil(in);
+ }
+
+ if (f > -0.5)
+ return ceil(in);
+ return floor(in);
+}
+
+void main() {+ char buf[1024];
+ int r;
+ float f;
+
+ r = read(0, buf, sizeof(buf));
+ if (r <= 0)
+ return;
+
+ buf[r] = '\0';
+
+ f = round(atof(buf));
+
+ print("%f\n", f);+}
--
⑨