Add Rust Cleve Moler arbitrary precision example

.gitignore

-# C++ ignore rules
+# General Ignore Rules
+**/documentation/
 **.o
 **.d
-
-# Java ignore rules
+**.exe
+**.zip
 **.class
 **.jar
-!**wrapper.jar
-
-# Python rules
+!**gradle/wrapper/*.jar
 **.pyc
+**/docs
 
+# Binary Specific Ignore rules
+**/ll2
+**leak.out*
+**storage
+**runShapes
+**runshapes
+**updateRoom
+**registration
+**pointerReview
 
-# Gradle Ignore rules
-**/build
-**/.gradle
+**/build/
+**/.gradle/
 
-# Deploy Rules
-**.zip
+# Assignment Ignore Rules
+**Assignment-0*
 
-# Eclipse Project Rules
-**/.project
-**/.classpath
+# Eclipse Project Ignore Rules
+**.project
+**.settings
+**.classpath
 
+# Latex Ignore Rules
+**.aux
+
+# Scratch (temp) File & Directory Ignore rules
+Scratch
 **.bak
 
-# Latex
-**.aux
-**.toc
-**.dvi
-**latexmk
-**.fls
-**.log
-**.out
+# Vim rules
+**.swp
+
+# Python Coverage (coverage.py) Rules
+**/.coverage
+**/htmlcov
+
+# Python Disttools
+MANIFEST
+
+# Python Tox
+**.tox
+
+# Style Check reports
+**style-check*
+
+# Rust
+**/target
+
+# output comparison
+**/out-Rust.txt
+**/out-rust.txt
+**/out-cpp.txt
+
+# Gcovr rules
+**/source/*.html
+**.gcda
+**.gcno

FPvsArbitraryPrecision/FP-ErrorEstimate-Rust/Cargo.lock

+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+[[package]]
+name = "az"
+version = "0.3.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "41a6b78289a33e09b00818ca8c90ab17c5dabb6e74f4b29a6de679c0e0886ade"
+
+[[package]]
+name = "fp-error-estimate"
+version = "0.1.0"
+dependencies = [
+ "rug",
+]
+
+[[package]]
+name = "gmp-mpfr-sys"
+version = "1.2.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "63d7f805cf9df081683d463f62864bda8b8e3ce7162a8e11cd0c49f27b8ce89b"
+dependencies = [
+ "libc",
+ "winapi",
+]
+
+[[package]]
+name = "libc"
+version = "0.2.69"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "99e85c08494b21a9054e7fe1374a732aeadaff3980b6990b94bfd3a70f690005"
+
+[[package]]
+name = "rug"
+version = "1.8.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "72315b6d9cb7d886fb99724330c47ceb29e923df657c31da3849fe88c0ded710"
+dependencies = [
+ "az",
+ "gmp-mpfr-sys",
+ "libc",
+]
+
+[[package]]
+name = "winapi"
+version = "0.3.8"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8093091eeb260906a183e6ae1abdba2ef5ef2257a21801128899c3fc699229c6"
+dependencies = [
+ "winapi-i686-pc-windows-gnu",
+ "winapi-x86_64-pc-windows-gnu",
+]
+
+[[package]]
+name = "winapi-i686-pc-windows-gnu"
+version = "0.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ac3b87c63620426dd9b991e5ce0329eff545bccbbb34f3be09ff6fb6ab51b7b6"
+
+[[package]]
+name = "winapi-x86_64-pc-windows-gnu"
+version = "0.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "712e227841d057c1ee1cd2fb22fa7e5a5461ae8e48fa2ca79ec42cfc1931183f"

FPvsArbitraryPrecision/FP-ErrorEstimate-Rust/Cargo.toml

+[package]
+name = "fp-error-estimate"
+version = "0.1.0"
+authors = ["Thomas J. Kennedy <tkennedy@cs.odu.edu>"]
+edition = "2018"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+rug = "1.8.0"

FPvsArbitraryPrecision/FP-ErrorEstimate-Rust/src/main.rs

+use rug::Float;
+
+
+fn cleve_moler(desired_precision: u32) -> Float {
+    let a = Float::with_val(desired_precision, 4.0)
+          / Float::with_val(desired_precision, 3.0);
+
+    let b = a - Float::with_val(desired_precision, 1.0);
+    let c = Float::with_val(desired_precision, &b + &b) + &b;
+
+    let one = Float::with_val(desired_precision, 1.0);
+
+    (c - one).abs()
+}
+
+fn main() {
+
+    for precision in 1..=1000 {
+        println!("{:>5} -> {}", precision, cleve_moler(precision));
+    }
+}