From 7fd908108aeebec892cf4c48a72e1eee13c72ce1 Mon Sep 17 00:00:00 2001
From: Louise Brown <louise.brown@nottingham.ac.uk>
Date: Tue, 25 Oct 2022 09:30:11 +0100
Subject: [PATCH] Changed file structure for LC13,14 and 15

---
 .../accessing_via_pointers.c                  |  0
 LC14/LineLength/LineLength.c                  | 26 +++++++++++++++++++
 .../pointer_function_example_1.c              |  0
 .../pointer_function_example_2.c              |  0
 .../pointer_to_array_examples.c               |  0
 .../pointer_to_array_1.c                      |  0
 .../pointer_to_array_2.c                      |  0
 7 files changed, 26 insertions(+)
 rename C13/{ => AccessingViaPointers}/accessing_via_pointers.c (100%)
 create mode 100644 LC14/LineLength/LineLength.c
 rename LC14/{ => PointerFunc1}/pointer_function_example_1.c (100%)
 rename LC14/{ => PointerFunc2}/pointer_function_example_2.c (100%)
 rename LC15/{ => PointerToArray}/pointer_to_array_examples.c (100%)
 rename LC15/{ => PointerToArray1}/pointer_to_array_1.c (100%)
 rename LC15/{ => PointerToArray2}/pointer_to_array_2.c (100%)

diff --git a/C13/accessing_via_pointers.c b/C13/AccessingViaPointers/accessing_via_pointers.c
similarity index 100%
rename from C13/accessing_via_pointers.c
rename to C13/AccessingViaPointers/accessing_via_pointers.c
diff --git a/LC14/LineLength/LineLength.c b/LC14/LineLength/LineLength.c
new file mode 100644
index 0000000..214d9c2
--- /dev/null
+++ b/LC14/LineLength/LineLength.c
@@ -0,0 +1,26 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <math.h>
+
+float LineLength(float x1, float x2, float y1, float y2);
+
+int main()
+{
+    float p1x = 3.4, p2x = 5.7, p1y = 0.0, p2y = 6.8;
+    float length = 0;
+    length = LineLength(p1x, p2x, p1y, p2y);
+    printf("Length = %f", length);
+    return 0;
+}
+
+float LineLength(float x1, float x2, float y1, float y2)
+{
+    float result;
+    float dx = x2-x1;
+    float dy = y2-y1;
+    float tol = 1e-10;
+    if (fabs(dx) < tol && fabs(dy) < tol )
+        return -1;
+    result = sqrt(dx*dx + dy*dy);
+    return result;
+}
diff --git a/LC14/pointer_function_example_1.c b/LC14/PointerFunc1/pointer_function_example_1.c
similarity index 100%
rename from LC14/pointer_function_example_1.c
rename to LC14/PointerFunc1/pointer_function_example_1.c
diff --git a/LC14/pointer_function_example_2.c b/LC14/PointerFunc2/pointer_function_example_2.c
similarity index 100%
rename from LC14/pointer_function_example_2.c
rename to LC14/PointerFunc2/pointer_function_example_2.c
diff --git a/LC15/pointer_to_array_examples.c b/LC15/PointerToArray/pointer_to_array_examples.c
similarity index 100%
rename from LC15/pointer_to_array_examples.c
rename to LC15/PointerToArray/pointer_to_array_examples.c
diff --git a/LC15/pointer_to_array_1.c b/LC15/PointerToArray1/pointer_to_array_1.c
similarity index 100%
rename from LC15/pointer_to_array_1.c
rename to LC15/PointerToArray1/pointer_to_array_1.c
diff --git a/LC15/pointer_to_array_2.c b/LC15/PointerToArray2/pointer_to_array_2.c
similarity index 100%
rename from LC15/pointer_to_array_2.c
rename to LC15/PointerToArray2/pointer_to_array_2.c