From e73fb5fb540109e6aeb099428e3eaf5555881112 Mon Sep 17 00:00:00 2001
From: Perry Kivolowitz <perry@kivolowitz.com>
Date: Sat, 7 Jan 2023 21:44:26 -0600
Subject: [PATCH] beginning of endianness discussion

---
 section_3/endian/.vscode/settings.json |  6 ++++
 section_3/endian/main.cpp              | 38 ++++++++++++++++++++++++++
 2 files changed, 44 insertions(+)
 create mode 100644 section_3/endian/.vscode/settings.json
 create mode 100644 section_3/endian/main.cpp

diff --git a/section_3/endian/.vscode/settings.json b/section_3/endian/.vscode/settings.json
new file mode 100644
index 0000000..2d5aa6c
--- /dev/null
+++ b/section_3/endian/.vscode/settings.json
@@ -0,0 +1,6 @@
+{
+    "files.associations": {
+        "ostream": "cpp",
+        "iomanip": "cpp"
+    }
+}
\ No newline at end of file
diff --git a/section_3/endian/main.cpp b/section_3/endian/main.cpp
new file mode 100644
index 0000000..4fa1cce
--- /dev/null
+++ b/section_3/endian/main.cpp
@@ -0,0 +1,38 @@
+/*  Determine Endianness
+    Perry Kivolowitz
+    Carthage College
+*/
+
+#include <iostream>
+#include <iomanip>
+#include <sstream>
+#include <cinttypes>
+#include <string>
+
+using namespace std;
+
+template <class T>
+string Dump(T & i) {
+    stringstream ss;
+    unsigned char * p = reinterpret_cast<unsigned char *>(&i);
+
+    ss << hex << setfill('0');
+    for (uint32_t counter = 0; counter < sizeof(T); counter++) {
+        ss << setw(2) << static_cast<int>(*(p++));
+    }
+    return ss.str();
+}
+
+int main() {
+    int16_t i16 = 0x0123;
+    int32_t i32 = 0x01234567;
+    int64_t i64 = 0x0123456789ABCDEF;
+
+    cout << hex << setfill('0');
+    cout << "Endianness of this computer:\n";
+    cout << "i16: " << setw(16) << Dump(i16) << " value: " << setw(16) << i16 << endl;
+    cout << "i32: " << setw(16) << Dump(i32) << " value: " << setw(16) << i32 << endl;
+    cout << "i64: " << setw(16) << Dump(i64) << " value: " << setw(16) << i64 << endl;
+    cout << "If little endian, column 1 will not equal column 2.\n";
+    return 0;
+}