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I/O Conditions ​

These condition types are exported by both the (rnrs io ports (6)) and (rnrs io simple (6)) libraries.

Condition Type: &i/o ​

Scheme Procedure: make-i/o-error ​

Scheme Procedure: i/o-error? obj ​

A condition supertype for more specific I/O errors.

Condition Type: &i/o-read ​

Scheme Procedure: make-i/o-read-error ​

Scheme Procedure: i/o-read-error? obj ​

A subtype of &i/o; represents read-related I/O errors.

Condition Type: &i/o-write ​

Scheme Procedure: make-i/o-write-error ​

Scheme Procedure: i/o-write-error? obj ​

A subtype of &i/o; represents write-related I/O errors.

Condition Type: &i/o-invalid-position ​

Scheme Procedure: make-i/o-invalid-position-error position ​

Scheme Procedure: i/o-invalid-position-error? obj ​

Scheme Procedure: i/o-error-position condition ​

A subtype of &i/o; represents an error related to an attempt to set the file position to an invalid position.

Condition Type: &i/o-filename ​

Scheme Procedure: make-io-filename-error filename ​

Scheme Procedure: i/o-filename-error? obj ​

Scheme Procedure: i/o-error-filename condition ​

A subtype of &i/o; represents an error related to an operation on a named file.

Condition Type: &i/o-file-protection ​

Scheme Procedure: make-i/o-file-protection-error filename ​

Scheme Procedure: i/o-file-protection-error? obj ​

A subtype of &i/o-filename; represents an error resulting from an attempt to access a named file for which the caller had insufficient permissions.

Condition Type: &i/o-file-is-read-only ​

Scheme Procedure: make-i/o-file-is-read-only-error filename ​

Scheme Procedure: i/o-file-is-read-only-error? obj ​

A subtype of &i/o-file-protection; represents an error related to an attempt to write to a read-only file.

Condition Type: &i/o-file-already-exists ​

Scheme Procedure: make-i/o-file-already-exists-error filename ​

Scheme Procedure: i/o-file-already-exists-error? obj ​

A subtype of &i/o-filename; represents an error related to an operation on an existing file that was assumed not to exist.

Condition Type: &i/o-file-does-not-exist ​

Scheme Procedure: make-i/o-file-does-not-exist-error ​

Scheme Procedure: i/o-file-does-not-exist-error? obj ​

A subtype of &i/o-filename; represents an error related to an operation on a non-existent file that was assumed to exist.

Condition Type: &i/o-port ​

Scheme Procedure: make-i/o-port-error port ​

Scheme Procedure: i/o-port-error? obj ​

Scheme Procedure: i/o-error-port condition ​

A subtype of &i/o; represents an error related to an operation on the port port.