Merge pull request #15 from 9prady9/arith

Arith

Author: pavanky

Cargo.lock

@@ -6,6 +6,7 @@ build = "build.rs"
 
 [dependencies]
 libc = "*"
+num = "*"
 
 [build-dependencies.rustc-serialize]
 rustc-serialize = "*"
@@ -14,6 +15,6 @@ rustc-serialize = "*"
 name = "arrayfire"
 path = "src/lib.rs"
 
-[[test]]
+[[example]]
 name = "helloworld"
-path = "tests/hello_world.rs"
+path = "examples/helloworld.rs"

Cargo.toml

@@ -10,17 +10,17 @@ Edit [build.conf](build.conf) to modify the build flags. The structure is a simp
 Currently Rust does not allow key:value pairs to be passed from the CLI.
 To use an existing arrayfire installation modify the first three JSON values.
 
-To build:
+To build arrayfire:
 
 ```bash
 git submodule update --init --recursive
 cargo build
 ```
 
-To test:
+To run hello world example:
 
 ```bash
-~/p/arrayfire_rust> cargo test
+~/p/arrayfire_rust> cargo run --example helloworld
 ...
      running 1 test
 ArrayFire v3.0.0 (CUDA, 64-bit Mac OSX, build d8d4b38)
@@ -35,12 +35,75 @@ Create a 5-by-3 matrix of random floats on the GPU
     0.9251     0.5132     0.6814
 
 Element-wise arithmetic
+sin(a) + 1.5 =>
 [5 3 1 1]
-    0.6744     0.4317     0.7006
-    0.7962     0.6189     0.2905
-    0.0390     0.1097     0.6549
-    0.8243     0.4531     0.3509
-    0.7987     0.4910     0.6299
+    2.1744     1.9317     2.2006
+    2.2962     2.1189     1.7905
+    1.5390     1.6097     2.1549
+    2.3243     1.9531     1.8509
+    2.2987     1.9910     2.1299
+
+sin(a) + cos(a) =>
+[5 3 1 1]
+    1.4128     1.3337     1.4142
+    1.4012     1.4044     1.2474
+    1.0382     1.1037     1.4106
+    1.3905     1.3446     1.2873
+    1.4004     1.3621     1.4066
+
+!a =>
+[5 3 1 1]
+         1          1          1
+         1          1          1
+         1          1          1
+         1          1          1
+         1          1          1
+
+a + b
+[5 3 1 1]
+    2.9147     2.3780     2.9767
+    3.2172     2.7862     2.0853
+    1.5780     1.7196     2.8689
+    3.2933     2.4233     2.2094
+    3.2238     2.5042     2.8113
+
+Fourier transform the result
+[5 3 1 1]
+         (10.6327,0.0000)         (9.6043,0.0000)          (10.1267,0.0000)
+         (0.4689,0.4640)          (0.3193,0.0802)          (0.1713,0.1441)
+         (-0.3491,-0.7454)        (-0.2923,-0.4018)        (0.2667,0.4886)
+         (-0.3491,0.7454)         (-0.2923,0.4018)         (0.2667,-0.4886)
+         (0.4689,-0.4640)         (0.3193,-0.0802)         (0.1713,-0.1441)
+
+Create 2-by-3 matrix from host data
+[2 3 1 1]
+         1          3          5
+         2          4          6
+
+Sort A and print sorted array and corresponding indices
+[5 3 1 1]
+    0.0390     0.1099     0.2948
+    0.7402     0.4464     0.3585
+    0.9210     0.4702     0.6814
+    0.9251     0.5132     0.7140
+    0.9690     0.6673     0.7762
+
+[5 3 1 1]
+         2          2          1
+         0          0          3
+         1          3          4
+         4          4          2
+         3          1          0
+
+u8 constant array
+[5 3 1 1]
+         1          1          1
+         1          1          1
+         1          1          1
+         1          1          1
+         1          1          1
+
+Is u8_cnst array float precision type ? false
 ```
 
 ## Issues

README.md

@@ -4,7 +4,6 @@ extern crate arrayfire as af;
 use af::Dim4;
 use af::Array;
 
-#[test]
 fn main() {
     af::set_device(0);
     af::info();
@@ -16,8 +15,15 @@ fn main() {
     af::print(&a);
 
     println!("Element-wise arithmetic");
-    let b: Array = af::sin(&a) + 1.5;
-    af::print(&b);
+    let b: Array = &af::sin(&a) + 1.5;
+    let b2: Array = &af::sin(&a) + &af::cos(&a);
+    let b3: Array = ! &a;
+    println!("sin(a) + 1.5 => "); af::print(&b);
+    println!("sin(a) + cos(a) => "); af::print(&b2);
+    println!("!a => "); af::print(&b3);
+
+    let test = &a + &b;
+    println!("a + b"); af::print(&test);
 
     // printf("Negate the first three elements of second column\n");
     // B(seq(0, 2), 1) = B(seq(0, 2), 1) * -1;
@@ -46,4 +52,9 @@ fn main() {
     let (vals, inds) = af::sort_index(&a, 0, true);
     af::print(&vals);
     af::print(&inds);
+
+    println!("u8 constant array");
+    let u8_cnst = af::constant(1 as u8, dims);
+    af::print(&u8_cnst);
+    println!("Is u8_cnst array float precision type ? {}", u8_cnst.is_single());
 }