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Article contents:[[tags: manual]] [[toc:]] == Module (chicken bytevector) This module contains procedures for dealing with "bytevectors". Blobs are unstructured byte arrays (basically "binary strings"). You can't do much with them, but they allow conversion to and from [[Module srfi-4|SRFI-4 number vectors]] which define how to access a bytevector's byte contents. === bytevector <procedure>(bytevector FIXNUM ...)</procedure> Returns a new bytevector containing the values {{FIXNUM ...}}. === make-bytevector <procedure>(make-bytevector SIZE)</procedure> Returns a bytevector object of {{SIZE}} bytes, aligned on an 8-byte boundary, uninitialized. === bytevector? <procedure>(bytevector? X)</procedure> Returns {{#t}} if {{X}} is a bytevector object, or {{#f}} otherwise. === bytevector-length <procedure>(bytevector-length BYTEVECTOR)</procedure> Returns the number of bytes in {{BYTEVECTOR}}. === bytevector-u8-ref <procedure>(bytevector-u8-ref BYTEVECTOR INDEX)</procedure> Returns the byte at {{INDEX}} in {{BYTEVECTOR}}. === bytevector-u8-set! <procedure>(bytevector-u8-set! BYTEVECTOR INDEX VALUE)</procedure> Destructively modifies the byte at {{INDEX}} in {{BYTEVECTOR}} to {{VALUE}}, which should be a fixnum. === utf8->string <procedure>(utf8->string BYTEVECTOR [VALIDATE])</procedure> Returns a string with the contents of {{BYTEVECTOR}}. if {{VALIDATE}} is given and false, then invalidly encoded characters do not signal an error - byte-sequences that do not represent valid UTF-8 characters are retained and, if extracted with {{string-ref}} are converted to a trailing surrogate pair half in the range U+DC80 to U+DCFF. === string->utf8 <procedure>(string->utf8 STRING)</procedure> Returns a bytevector with the contents of {{STRING}}. === latin1->string <procedure>(latin1->string BYTEVECTOR)</procedure> Returns a string with the contents of {{BYTEVECTOR}} converted from Latin-1 (ISO-8859-1) encoding to UTF-8. === string->latin1 <procedure>(string->latin1 STRING)</procedure> Returns a bytevector with the contents of {{STRING}} encoded as Latin-1 (ISO-?8859-1). === bytevector=? <procedure>(bytevector=? BYTEVECTOR1 BYTEVECTOR2)</procedure> Returns {{#t}} if the two argument bytevectors are of the same size and have the same content. === bytevector-append <procedure>(bytevector-append BYTEVECTOR ...)</procedure> Returns a new bytevector holding the concatenated contents of all argument bytevectors. === bytevector-copy <procedure>(bytevector-copy BYTEVECTOR #!optional START END)</procedure> Returns a new bytevector holding the contents of {{BYTEVECTOR}} between the indices {{START}} to {{END}}. === bytevector-copy! <procedure>(bytevector-copy! TO AT FROM #!optional START END)</procedure> Copioes the contents of the bytevector FROM between the indices {{START}} to {{END}} into the bytevector {{TO}}, starting at index {{AT}}. --- Previous: [[Module (chicken bitwise)]] Next: [[Module (chicken condition)]] Description of your changes:

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