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--- haas:spring2017:cprog:projects:mbe0 [2017/02/07 21:52] – [STDOUT verification of answer] wedge
+++ haas:spring2017:cprog:projects:mbe0 [2017/02/15 15:42] (current) – [Total output comparison] wedge
@@ Line 8: / Line 8: @@
 ======Project: MENTAL MATH - MULTIPLY BY 11 (mbe0)======
+=====Errata=====
+  * Added verification section to facilitate project output specification compliance (20170207)
+  * Added automatic verification subsection to verification section (20170208)
 =====Objective=====
 To implement a programmatic solution (ie simulation) of a real life process- the mental math trick of multiplying any two- or three-digit number by eleven.
@@ Line 356: / Line 360: @@
 You can repeat this for the other data files (output.73 for an input of 73, etc.)
+===Isolate just the STDOUT or the STDERR===
+Additionally, you may want to specifically look at your program's STDOUT or STDERR independent of each other.
+To do this, you can do the following.
+To isolate STDOUT and STDERR into separate files, you can do the following:
+<cli>
+lab46:~/src/cprog/mbe0$ ./mbe0 <<< 37 1>stdout.37 2>stderr.37
+lab46:~/src/cprog/mbe0$
+</cli>
+You can then compare those particular collections of information against my copies (located in the **mbe0** subdirectory of the CPROG Public Directory, by the same file names).
+====automated verification====
+I have rigged up **pchk** to work for this project; it will check for differences and compare MD5sum hashes for stderr, stdout, and total (combined) output.
+Once you have everything complete, this is a good final check to do to ensure everything is in order.
+<cli>
+lab46:~/src/cprog/mbe0$ pchk cprog mbe0
+===================================================
+=          mbe0 output validation check           =
+===================================================
+      stderr diff: MATCH    stderr md5sum: MATCH
+[ 37] stdout diff: MATCH    stdout md5sum: MATCH
+      output diff: MATCH    output md5sum: MATCH
+      stderr diff: MATCH    stderr md5sum: MATCH
+[ 73] stdout diff: MATCH    stdout md5sum: MATCH
+      output diff: MATCH    output md5sum: MATCH
+      stderr diff: MATCH    stderr md5sum: MATCH
+[128] stdout diff: MATCH    stdout md5sum: MATCH
+      output diff: MATCH    output md5sum: MATCH
+      stderr diff: MATCH    stderr md5sum: MATCH
+[480] stdout diff: MATCH    stdout md5sum: MATCH
+      output diff: MATCH    output md5sum: MATCH
+      stderr diff: MATCH    stderr md5sum: MATCH
+[907] stdout diff: MATCH    stdout md5sum: MATCH
+      output diff: MATCH    output md5sum: MATCH
+      stderr diff: MATCH    stderr md5sum: MATCH
+[933] stdout diff: MATCH    stdout md5sum: MATCH
+      output diff: MATCH    output md5sum: MATCH
+===================================================
+=     matches: 36, mismatches:  0, total: 36      =
+===================================================
+lab46:~/src/cprog/mbe0$
+</cli>
+Since your project submission will be evaluated in part by compliance to output specifications, you probably want to check to see how you are doing before submitting.
 =====Reflection=====
 Be sure to provide any commentary on your journal regarding realizations had and discoveries made during your pursuit of this project.
@@ Line 367: / Line 425: @@
   * Code must compile cleanly (no warnings or errors)
+    * Again, I will be compiling as follows: gcc -Wall -o mbe0 mbe0.c
   * Submit the program in a file called **mbe0.c**
   * Output must be correct, and match the form given in the sample output above.

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