From 8ae59008fefd8140268a42704737f44d70c3f340 Mon Sep 17 00:00:00 2001
From: Jason Travis Smith <Jason@CyberMagesLLC.com>
Date: Wed, 30 Dec 2015 17:54:23 -0500
Subject: [PATCH] This is an example of how to use the library.

This example converts a 32-bit floating point value
to and from a byte array.
---
 examples/convert_f32.rs | 72 +++++++++++++++++++++++++++++++++++++++++
 1 file changed, 72 insertions(+)
 create mode 100644 examples/convert_f32.rs

diff --git a/examples/convert_f32.rs b/examples/convert_f32.rs
new file mode 100644
index 0000000..dd5b209
--- /dev/null
+++ b/examples/convert_f32.rs
@@ -0,0 +1,72 @@
+#![feature(convert)]
+
+extern crate alchemy;
+
+
+use std::f32;
+
+use alchemy::{PlatformEndian, Transmutable};
+
+
+
+pub fn main()
+{
+   let num: f32;
+   let mut final_num: f32;
+   let mut buffer: [u8; 4];
+
+   // Initialize the variables.
+   num = 6.291985f32;
+   final_num = f32::NAN;
+   buffer = [0u8; 4];
+
+   println!("Converting the value {} into and out of an array of bytes.", num);
+   println!("Buffer starts as: {}", stringify_array(&buffer));
+
+   // Convert the floating point number into an array of bytes.
+   PlatformEndian::f32_to_bytes(&mut buffer, num);
+
+   println!("Buffer contains: {}", stringify_array(&buffer));
+
+   // Convert the array of bytes into a floating point number.
+   final_num = PlatformEndian::bytes_to_f32(&buffer);
+   println!("The buffer converts back to: {}", final_num);
+}
+
+/// This just help pretty up the printing of an array of bytes.
+fn stringify_array(buffer: &[u8]) -> String
+{
+   let mut result: String;
+   let mut count: usize;
+
+   // Create a new string that starts with just
+   // the array opening bracket.
+   result = String::new();
+   result.push_str("[");
+
+   // Loop through the buffer keeping track
+   // of our place in it.
+   count = 0usize;
+   for byte in buffer
+   {
+      // Handle priting the last value differently.
+      if count >= buffer.len() - 1
+      {
+         result.push_str(byte.to_string().as_str());
+      }
+      else
+      {
+         result.push_str(byte.to_string().as_str());
+         result.push_str(", ");
+      }
+
+      // Mark that we are going to look at
+      // the next byte in the array.
+      count += 1;
+   }
+
+   // Add the array closing bracket and
+   // return the new String.
+   result.push_str("]");
+   result
+}