UML and C code generation

Searching for an open source UML tool with C code generation feature. So far, found TOPCASED Model Transformations (includes C to UML and UML to C) and Acceleo.

About coding standards and styles

A few notes about C/C++ and Python coding standards and styles. On my opinion, the main point of coding standards is to provide a set of rules for using particular programming language for a particular purpose in a particular environment. Thus, by taking particular programming language there can not be one coding standard for all used and all users. For a given application a good coding standard is always better than no coding standard.

For the very first review the GNU Coding Standards can be taken.

C/C++

As was mentioned above the reviewing of C coding standards can be started from GNU Coding Standards. For more details the Bjarne Stroustrup's C++ Style and Techniques FAQ can be taken. Here I was found not only recommendations about style, but also answers on FAQs such as Is "int* p;" right or is "int *p;" right?. Bjarne Stroustrup's also recommends for reviewing the JSF air vehicle C++ coding standards for the system development and demonstration program as a good coding style for embedded systems, which I found very helpful.

Another interesting guide is Guido van Rossum's Style Guide for C Code. This guide gives coding conventions for the C code comprising the C implementation of Python. However it contains a very basic rules that some users will find very helpful.

Java

Just  Code Conventions for the Java Programming Language.

Python

On this moment I use Guido van Rossum's Style Guide for Python Code. I found it as a very basic for all applications that I did.