features -- r7rs Definition

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Kind

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procedure;

Implemented by

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• features (from vonuvoli);

Procedure signature

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Procedure variants:

• (() -> (list-proper))
  • inputs: none;
  • output: a value of type list-proper;

Exports

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• scheme:base -- (scheme base);

Exports recursive

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• scheme -- (scheme);

Description

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(features)

Returns a list of the feature identifiers which cond-expand treats as true. It is an error to modify this list. Here is an example of what features might return:

(features) ===>
  (r7rs ratios exact-complex full-unicode
   gnu-linux little-endian
   fantastic-scheme
   fantastic-scheme-1.0
   space-ship-control-system)

---

The text herein was sourced and adapted as described in the "R7RS attribution of various text snippets" appendix.

Referenced-types

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• list-proper;