  Although many active scientific codes use modern Fortran, most contemporary
scientific software "libraries" are implemented in C and C++. Providing their
numerical, algorithmic, or data management features to Fortran codes requires
writing and maintaining substantial amounts of glue code.
  This article introduces a tool that automatically generates native Fortran
2003 interfaces to C and C++ libraries. The tool supports C++ features that
have no direct Fortran analog, such as templated functions and exceptions. A
set of simple examples demonstrate the utility and scope of the tool, and
timing measurements with a mock numerical library illustrate the minimal
performance impact of the generated wrapper code.
