1 files changed, 22 insertions, 0 deletions
diff --git a/src/stdlib/labs.c b/src/stdlib/labs.c
new file mode 100644
index 00000000..fd092f5a
--- /dev/null
+++ b/src/stdlib/labs.c
@@ -0,0 +1,22 @@
+#include <stdlib.h>
+#include "limits.h"
+
+/** absolute value **/
+long int labs(long int j)
+{
+	if (j == LONG_MIN) {
+		/* undefined */
+	}
+
+	return j < 0 ? -j : j;
+}
+
+/***
+function computes the absolute value of ARGUMENT(j).
+***/
+
+/*
+UNDEFINED(ABS(ARGUMENT(j)) cannot be represented)
+RETURN_SUCCESS(ABS(ARGUMENT(j)))
+STDC(1)
+*/