Add 1995/heathbar/try.sh

1995/heathbar/README.md

@@ -17,7 +17,7 @@ where num is a non-negative number.
 ## Try:
 
 ```sh
-./heathbar 4253 2281
+./try.sh
 ```
 
 

1995/heathbar/try.sh

@@ -0,0 +1,52 @@
+#!/usr/bin/env bash
+#
+# try.sh - demonstrate IOCCC winner 1995/heathbar
+#
+
+# make sure CC is set so that when we do make CC="$CC" it isn't empty. Doing it
+# this way allows us to have the user specify a different compiler in an easy
+# way.
+if [[ -z "$CC" ]]; then
+    CC="cc"
+fi
+
+make CC="$CC" all >/dev/null || exit 1
+
+# clear screen after compilation so that only the entry is shown
+clear
+
+heathbar()
+{
+    if [[ "$#" -ne 2 ]]; then
+	echo "$0: heathbar() expects two args, got $#" 1>&2
+	return
+    elif [[ "$1" -lt 0 || "$2" -lt 0 ]]; then
+	echo "$0: heathbar() expects two positive digits, got $1 $2" 1>&2
+	return
+    fi
+
+    read -r -n 1 -p "Press any key to run: ./heathbar $1 $2: "
+    echo 1>&2
+    ./heathbar "$1" "$2"
+    echo 1>&2
+
+    read -r -n 1 -p "Press any key to run: echo \$(($1 + $2)): "
+    echo 1>&2
+    echo "$(("$1" + "$2"))"
+    echo 1>&2
+
+    if [[ $(("$1"+"$2")) == "$(./heathbar "$1" "$2")" ]]; then
+	echo "\$(($1+$2)) == ./heathbar $1 $2: $(./heathbar "$1" "$2")" 1>&2
+    else
+	echo "ERROR: \$(($1+$2)) != ./heathbar $1 $2: $(($1+$2)) != $(./heathbar "$1" "$2")" 1>&2
+    fi
+
+    echo 1>&2
+}
+heathbar 4253 2281
+heathbar 1 2
+heathbar 3 5
+heathbar 1234 999
+read -r -n 1 -p "Press any key to try non-numbers: "
+echo 1>&2
+heathbar foo bar