From e8d208499207ab8620d9c850f664cd6ddce4bb00 Mon Sep 17 00:00:00 2001
From: Recep Aslantas <recp@users.noreply.github.com>
Date: Tue, 4 Jul 2017 15:34:34 +0300
Subject: [PATCH] Create CONTRIBUTING.md

---
 CONTRIBUTING.md | 52 +++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 52 insertions(+)
 create mode 100644 CONTRIBUTING.md

diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
new file mode 100644
index 0000000..4fd79c0
--- /dev/null
+++ b/CONTRIBUTING.md
@@ -0,0 +1,52 @@
+# CONTRIBUTING
+
+Any contributions (code, documentation, ...) are welcome. This project uses [cmocka](http://cmocka.org) for testing, you may need to check their documentation 
+
+# New Features
+- This library may not accept all new features, it is better to create an issue and get approval before coding
+- You must add test for every new feature
+- The feature must be compiled in both UNIX/POSIX systems (e.g. macos, linux...) and Windows
+
+# Code Style
+This library is written with C99, don't try to add C++ files (yes it can compiled into lib),
+if you have enough reason to add C++ files than create an issue and get approval before coding,
+
+- Lines should be wrapped at 80 characters.
+- Don't invent new style for existing ones
+- Use C89 style comments (`/* comments */`) not C++ style comments (`// comments`)
+- Don't use TABs instead use 2 spaces for TABs
+- All indents must be 2 spaces, not 1 nor 4 space
+- All functions in `include` folder must be exported by `DS_EXPORT` and wrapped by `extern "C" {` for C++
+- Crate new line for return type, attribs:
+
+```C
+DS_EXPORT
+uint32_t
+ds_hashfn_djb2(void *key);
+```
+
+not acceptable:
+
+```C
+DS_EXPORT uint32_t ds_hashfn_djb2(void *key);
+```
+- Variables must be declared at the top of a scope before usage:
+```C
+int x;
+int y;
+
+x = y = 0;
+```
+
+not acceptable:
+
+```C
+int x;
+
+x = 0;
+int y = 0;
+```
+
+- All files must retain same LICENSE statement
+- Code with warnings will not be accepted, please suppress them (not by disabling them)
+- Run code anaylysis before submitting pull requests, if you use Xcode you can enable Sanitizer in scheme, you can use valgrind in linux