From 442a49ad5a48d417345959b903ae6a6d32d55759 Mon Sep 17 00:00:00 2001
From: Haidong Ji
Date: Fri, 15 Apr 2022 15:51:30 -0500
Subject: Great C programming fun

Excellent fundamentals and displine training, many tools and techniques
exercises: gdb, emacs, valgrind, git
---
 24_read_arr3/README     |  3 +++
 24_read_arr3/answer.txt | 13 +++++++++++++
 24_read_arr3/grade.txt  |  5 +++++
 24_read_arr3/test.c     | 31 +++++++++++++++++++++++++++++++
 4 files changed, 52 insertions(+)
 create mode 100644 24_read_arr3/README
 create mode 100644 24_read_arr3/answer.txt
 create mode 100644 24_read_arr3/grade.txt
 create mode 100644 24_read_arr3/test.c

(limited to '24_read_arr3')

diff --git a/24_read_arr3/README b/24_read_arr3/README
new file mode 100644
index 0000000..3329694
--- /dev/null
+++ b/24_read_arr3/README
@@ -0,0 +1,3 @@
+Execute the code in test.c by hand, and place the resulting
+output in a file called "answer.txt".
+As always, compile and run test.c to check your work, and submit.
diff --git a/24_read_arr3/answer.txt b/24_read_arr3/answer.txt
new file mode 100644
index 0000000..7057c8e
--- /dev/null
+++ b/24_read_arr3/answer.txt
@@ -0,0 +1,13 @@
+x = 1
+*p = 7
+**q= 4
+1
+2
+3
+99
+5
+6
+42
+8
+9
+*q=9
diff --git a/24_read_arr3/grade.txt b/24_read_arr3/grade.txt
new file mode 100644
index 0000000..1f697dc
--- /dev/null
+++ b/24_read_arr3/grade.txt
@@ -0,0 +1,5 @@
+Grading at Sat 20 Nov 2021 09:23:08 PM UTC
+Your file matched the expected output
+Your output matched what we expected
+
+Overall Grade: A
diff --git a/24_read_arr3/test.c b/24_read_arr3/test.c
new file mode 100644
index 0000000..c91dcfb
--- /dev/null
+++ b/24_read_arr3/test.c
@@ -0,0 +1,31 @@
+#include <stdio.h>
+#include <stdlib.h>
+
+int* aFunction(int x, int *p, int ** q) {
+  printf("x = %d\n", x);
+  printf("*p = %d\n", *p);
+  printf("**q= %d\n", **q);
+  *p = 42;
+  **q = 99;
+  *q = &p[1];
+  return &p[2];
+}
+
+int main (void) {
+  int anArray[3][3] = { {1,2,3},
+                        {4,5,6},
+                        {7,8,9} };
+
+  int * p = anArray[1];
+  int * q = aFunction(anArray[0][0],
+                      anArray[2],
+                      &p);
+  for (int i =0; i < 3; i++) {
+    for (int j = 0; j < 3; j++) {
+      printf("%d\n", anArray[i][j]);
+    }
+  }
+  printf("*q=%d\n", *q);
+
+  return EXIT_SUCCESS;
+}
-- 
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