There are advantages to programming to a language specification and only writing a minimal amount of implementation-specific code. For one thing it makes the pr

There are advantages to programming to a language specification and only writing a minimal amount of implementation-specific code. For one thing it makes the presuppositions of your program more explicit than if you’re writing in a language where the sole implementation is the specification. However, scheme has traditionally focused on a minimal standard (partly as a reaction to Common Lisp) and this has made “standard only” scheme less practical than the equivalent in Common Lisp or C/C++