From c029ad4311c81b6f6f3d56afb53326f9396c18cf Mon Sep 17 00:00:00 2001
From: Atila Neves <atila.neves@gmail.com>
Date: Sun, 30 Dec 2018 13:40:56 +0000
Subject: [PATCH] Rust lambda

---
 lambda.cpp  |  4 ++--
 lambda.d    |  6 +++---
 lambda.rs   | 24 ++++++++++++++++++++++++
 timings.txt |  7 +++++++
 4 files changed, 36 insertions(+), 5 deletions(-)
 create mode 100644 lambda.rs

diff --git a/lambda.cpp b/lambda.cpp
index b9ec4d8..76dd6fc 100644
--- a/lambda.cpp
+++ b/lambda.cpp
@@ -4,7 +4,7 @@
 using namespace std;
 
 template<typename F>
-void printTriples(int N, F&& func) {
+void triples(int N, F&& func) {
     int i = 0;
     for (int z = 1; ; ++z) {
         for (int x = 1; x <= z; ++x) {
@@ -21,7 +21,7 @@ void printTriples(int N, F&& func) {
 
 
 int main() {
-    printTriples(
+    triples(
         1000,
         [](auto t) { printf("(%i, %i, %i)\n", get<0>(t), get<1>(t), get<2>(t)); }
     );
diff --git a/lambda.d b/lambda.d
index 0a352c7..bf98424 100644
--- a/lambda.d
+++ b/lambda.d
@@ -2,7 +2,7 @@ import core.stdc.stdio: printf;
 import std.typecons: tuple;
 
 
-void printTriples(alias func)(int N) {
+void triples(alias func)(int N) {
     int i = 0;
     for (int z = 1; ; ++z) {
         for (int x = 1; x <= z; ++x) {
@@ -19,6 +19,6 @@ void printTriples(alias func)(int N) {
 
 
 void main() {
-    printTriples!((t) { printf("(%i, %i, %i)\n", t[0], t[1], t[2]); })
-                 (1000);
+    triples!((t) { printf("(%i, %i, %i)\n", t[0], t[1], t[2]); })
+            (1000);
 }
diff --git a/lambda.rs b/lambda.rs
new file mode 100644
index 0000000..6b1c95f
--- /dev/null
+++ b/lambda.rs
@@ -0,0 +1,24 @@
+pub fn main() {
+    triples(|x, y, z| {
+        println!("({}, {}, {})", x, y, z);
+    });
+}
+
+
+fn triples<F>(func: F) where F: Fn(i32, i32, i32) {
+    let mut i = 0 as i32;
+    for z in 1.. {
+        for x in 1..=z {
+            for y in x..=z {
+                if x*x + y*y == z*z {
+                    func(x, y, z);
+                    println!("({}, {}, {})", x, y, z);
+                    i = i + 1;
+                    if i == 1000 {
+                        return;
+                    }
+                }
+            }
+        }
+    }
+}
diff --git a/timings.txt b/timings.txt
index aa1d44a..36d8e8c 100644
--- a/timings.txt
+++ b/timings.txt
@@ -1,3 +1,8 @@
+dmd version: 2.083.1
+clang version: 7.0.1
+rustc version: 1.31.1
+
+
 Simple          CT (ms)  RT (ms)
 
 clang debug     59       599
@@ -18,3 +23,5 @@ dmd debug       33       368
 dmd release     37       154
 ldc debug       59       580
 ldc release     79       154
+rustc debug    111      9252
+rustc release  134       352