Merge pull request #1744 from xexyl/ovdluhe89-try

Add 1989/ovdluhe/try.sh and fix Makefile

1989/ovdluhe/Makefile

@@ -68,7 +68,7 @@ CINCLUDE=
 
 # Optimization
 #
-OPT=
+OPT= -O3
 
 # Default flags for ANSI C compilation
 #

1989/ovdluhe/README.md

@@ -22,11 +22,7 @@ by chance or is killed.
 ### Try:
 
 ```sh
-./ovdluhe < ./ovdluhe.c
-./ovdluhe < ./ovdluhe.c
-
-./ovdluhe < README.md
-./ovdluhe < README.md
+./try.sh ; sleep 2 ; ./try.sh
 ```
 
 

1989/ovdluhe/try.sh

@@ -0,0 +1,34 @@
+#!/usr/bin/env bash
+#
+# try.sh - demonstrate IOCCC winner 1989/ovdluhe
+#
+
+# 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
+
+i=0
+for ((i=0; i<4; ++i)); do
+    read -r -n 1 -p "Press any key to run: ./ovdluhe < ovdluhe.c: "
+    echo 1>&2
+    ./ovdluhe < ovdluhe.c
+    echo 1>&2
+
+    read -r -n 1 -p "Press any key to run: ./ovdluhe < README.md: "
+    echo 1>&2
+    ./ovdluhe < README.md
+    echo 1>&2
+
+    read -r -n 1 -p "Press any key to run: ./ovdluhe < Makefile: "
+    echo 1>&2
+    ./ovdluhe < Makefile
+    echo 1>&2
+done

thanks-for-help.md

@@ -744,6 +744,12 @@ and over again, flooding the screen. The problem is that there was a `for` loop
 that by necessity had to not have an increment stage but only in the `if` path
 (in the loop itself) did the pointer get updated.
 
+Cody also provided the [try.sh](/1989/ovdluhe/try.sh) script which runs the
+program four times on three files to show the different output. It doesn't run
+the program on each file four times in a row but rather does it on each file
+and starts over, doing it four times, to help with hopefully allowing different
+output.
+
 Cody also provided an [alternate version](/1989/ovdluhe/ovdluhe.alt.c) based on the
 author's remarks. See the README.md for details. The fix described above was
 fixed in this version too, after it was discovered and fixed.