output-port -- r7rs Type

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Sub-types tree

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• output-port-open:
  • binary-output-port-open;
  • textual-output-port-open;
• output-port-closed:
  • binary-output-port-closed;
  • textual-output-port-closed;
• binary-output-port:
  • binary-output-port-open;
  • binary-output-port-closed;
• textual-output-port:
  • textual-output-port-open;
  • textual-output-port-closed;
• bytevector-output-port;
• string-output-port;

Super-types

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• port;

Sub-types

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• output-port-open;
• output-port-closed;
• binary-output-port;
• textual-output-port;
• bytevector-output-port;
• string-output-port;

Sub-types recursive

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• binary-output-port-open;
• binary-output-port-closed;
• textual-output-port-open;
• textual-output-port-closed;

Referent definitions as input

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• output-port?;
• output-port-open?;

Referent definitions as input (recursive)

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• port?;
• binary-port?;
• textual-port?;
• input-port?;
• input-port-open?;
• call-with-port;

Note: These definitions consume an input that is a super-type.

Referent definitions as output

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• current-output-port;
• current-error-port;

Referent definitions as output (recursive)

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• open-binary-output-file;
• open-output-file;
• open-output-bytevector;
• open-output-string;

Note: These definitions produce an output that is a sub-type.

Predicate

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output-port?

Description

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For details please refer to port.

If port is omitted from any output procedure, it defaults to the value returned by (current-output-port). It is an error to attempt an output operation on a closed port.

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

Categories

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• types-ports;

Categories recursive

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• types;