support arrays of any size, don't require an initialization value, ..

.gitignore

@@ -1,3 +1,4 @@
 **/*.rs.bk
+.#*
 Cargo.lock
 target/

.travis.yml

@@ -0,0 +1,51 @@
+language: rust
+
+matrix:
+  include:
+    - env: TARGET=x86_64-unknown-linux-gnu
+      rust: nightly
+
+    - env: TARGET=thumbv6m-none-eabi
+      rust: nightly
+      addons:
+        apt:
+          sources:
+            - debian-sid
+          packages:
+            - binutils-arm-none-eabi
+
+    - env: TARGET=thumbv7m-none-eabi
+      rust: nightly
+      addons:
+        apt:
+          sources:
+            - debian-sid
+          packages:
+            - binutils-arm-none-eabi
+
+before_install: set -e
+
+install:
+  - bash ci/install.sh
+
+script:
+  - bash ci/script.sh
+
+after_script: set +e
+
+cache: cargo
+before_cache:
+  # Travis can't cache files that are not readable by "others"
+  - chmod -R a+r $HOME/.cargo
+
+branches:
+  only:
+    # release tags
+    - /^v\d+\.\d+\.\d+.*$/
+    - auto
+    - master
+    - try
+
+notifications:
+  email:
+    on_success: never

Cargo.toml

@@ -1,12 +1,19 @@
 [package]
 authors = ["Jorge Aparicio <jorge@japaric.io>"]
-categories = ["data-structures", "no-std"]
+categories = [
+    "data-structures",
+    "no-std",
+]
 description = "`static` friendly data structures that don't require dynamic memory allocation"
 documentation = "https://docs.rs/heapless"
-keywords = ["static", "no-heap"]
+keywords = [
+    "static",
+    "no-heap",
+]
 license = "MIT OR Apache-2.0"
 name = "heapless"
 repository = "https://github.com/japaric/heapless"
-version = "0.1.0"
+version = "0.2.0"
 
 [dependencies]
+untagged-option = "0.1.1"

ci/install.sh

@@ -0,0 +1,19 @@
+set -euxo pipefail
+
+main() {
+    case $TARGET in
+        thumb*m-none-eabi)
+            local vers=0.3.8
+
+            cargo install --list | grep "xargo v$vers" || \
+                ( cd .. && cargo install xargo -f --vers $vers )
+
+            rustup component list | grep 'rust-src.*installed' || \
+                rustup component add rust-src
+            ;;
+        *)
+            ;;
+    esac
+}
+
+main

ci/script.sh

@@ -0,0 +1,12 @@
+set -euxo pipefail
+
+main() {
+    case $TARGET in
+        thumb*m-none-eabi)
+            xargo check --target $TARGET
+            ;;
+        *)
+            cargo check --target $TARGET
+            ;;
+    esac
+}