From f8b740c5b083cbb2d755b8d1adb7dea41563c9ac Mon Sep 17 00:00:00 2001
From: Oskar <open7software@gmail.com>
Date: Mon, 16 Sep 2024 18:10:18 +0200
Subject: more

---
 6p52.cpp | 19 +++++++++++++++++++
 6p53.cpp | 23 +++++++++++++++++++++++
 6p54.cpp | 25 +++++++++++++++++++++++++
 6p55.cpp | 40 ++++++++++++++++++++++++++++++++++++++++
 6p56.cpp | 43 +++++++++++++++++++++++++++++++++++++++++++
 5 files changed, 150 insertions(+)
 create mode 100644 6p52.cpp
 create mode 100644 6p53.cpp
 create mode 100644 6p54.cpp
 create mode 100644 6p55.cpp
 create mode 100644 6p56.cpp

diff --git a/6p52.cpp b/6p52.cpp
new file mode 100644
index 0000000..e2b4925
--- /dev/null
+++ b/6p52.cpp
@@ -0,0 +1,19 @@
+
+/*
+ *
+ * 6.52
+ *
+ *
+ */
+
+int main () {
+
+	/*
+	  void manip(int, int);
+	  double dobj;
+	  (a) manip(’a’, ’z’); // Rank 3
+	  (b) manip(55.4, dobj); // Rank 4
+	  
+	*/
+	return 0;
+}
diff --git a/6p53.cpp b/6p53.cpp
new file mode 100644
index 0000000..c02561b
--- /dev/null
+++ b/6p53.cpp
@@ -0,0 +1,23 @@
+#include <iostream>
+
+/*
+ *
+ * 6.53
+ *
+ *
+ */
+
+int main () {
+
+	/*
+	  (a) int calc(int&, int&);
+	  int calc(const int&, const int&); // Low level const
+	  
+	  (b) int calc(char*, char*);
+	  int calc(const char*, const char*); // Low level const
+	  
+	  (c) int calc(char*, char*);
+	  int calc(char* const, char* const); // Top level const ignored
+	 */
+	return 0;
+}
diff --git a/6p54.cpp b/6p54.cpp
new file mode 100644
index 0000000..f78885d
--- /dev/null
+++ b/6p54.cpp
@@ -0,0 +1,25 @@
+#include <iostream>
+#include <vector>
+
+/*
+ *
+ * 6.54
+ *
+ *
+ */
+
+int summing(int a, int b) {
+
+	return a+b;
+}
+
+int main () {
+
+	int (*fpfp)(int, int) = summing;
+	int (*fpfp1)(int, int) = summing;
+	int (*fpfp2)(int, int) = summing;
+	int (*fpfp3)(int, int) = summing;
+	std::cout << fpfp(1, 1) << std::endl;
+	std::vector<int(*)(int, int)> funcvec = {fpfp, fpfp1, fpfp2, fpfp3};
+	return 0;
+}
diff --git a/6p55.cpp b/6p55.cpp
new file mode 100644
index 0000000..7f980e0
--- /dev/null
+++ b/6p55.cpp
@@ -0,0 +1,40 @@
+#include <iostream>
+#include <vector>
+
+/*
+ *
+ * 6.54
+ *
+ *
+ */
+
+int summing(int a, int b) {
+
+	return a + b;
+}
+
+int subtracting(int a, int b) {
+
+	return a - b;
+}
+
+int multiplying(int a, int b) {
+
+	return a * b;
+}
+
+int dividing(int a, int b) {
+
+	return a / b;
+}
+
+int main () {
+
+	int (*fpfp)(int, int) = summing;
+	int (*fpfp1)(int, int) = subtracting;
+	int (*fpfp2)(int, int) = multiplying;
+	int (*fpfp3)(int, int) = dividing;
+	std::cout << fpfp(1, 1) << std::endl;
+	std::vector<int(*)(int, int)> funcvec = {fpfp, fpfp1, fpfp2, fpfp3};
+	return 0;
+}
diff --git a/6p56.cpp b/6p56.cpp
new file mode 100644
index 0000000..12e91e9
--- /dev/null
+++ b/6p56.cpp
@@ -0,0 +1,43 @@
+#include <iostream>
+#include <vector>
+
+/*
+ *
+ * 6.54
+ *
+ *
+ */
+
+int summing(int a, int b) {
+
+	return a + b;
+}
+
+int subtracting(int a, int b) {
+
+	return a - b;
+}
+
+int multiplying(int a, int b) {
+
+	return a * b;
+}
+
+int dividing(int a, int b) {
+
+	return a / b;
+}
+
+int main () {
+
+	int (*fpfp)(int, int) = summing;
+	int (*fpfp1)(int, int) = subtracting;
+	int (*fpfp2)(int, int) = multiplying;
+	int (*fpfp3)(int, int) = dividing;
+	std::vector<int(*)(int, int)> funcvec = {fpfp, fpfp1, fpfp2, fpfp3};
+	for(auto a : funcvec) {
+		std::cout << a(10, 10) << std::endl;
+	}
+	
+	return 0;
+}
-- 
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