Coming From /
Plain C
Porting is covered in PortingFromC
Digital Mars has set up some helpful pages that describe the "D way" compared to the "C way":
Programming in D for C Programmers- C Preprocessor
- Interfacing to C
- Converting C .h Files to D Modules
- Converting C .h Files to D Modules
- Calling D object files from C
Related
- Languages vs. D
- D Transition Guide
- Feature List
- Rosetta Code: D category
- Language Specification
- Development with D