vectorlength  the length of a vector
LIBRARY
(import (rnrs)) ;R6RS
(import (rnrs base)) ;R6RS
(import (scheme r5rs)) ;R7RS
(import (scheme base)) ;R7RS
SYNOPSIS
(vectorlength vector)
DESCRIPTION
Returns, as an exact integer object, the number of elements in
vector. The length of a vector is fixed.
IMPLEMENTATION NOTES
All extant implementations use fixnums to represent vector lengths,
but this is not required.
RETURN VALUES
Returns a single value which is the length of the vector.
EXAMPLES
(vectorlength '#(1 2 3))
=> 3
APPLICATION USAGE
The vectorlength procedure sometimes appears in code that
destructures vectors, but in such cases it may be better to use a
pattern matching library such as (chibi match).
COMPATIBILITY
Apart from error handling, this procedure is the same in all Scheme
reports.
ERRORS
This procedure can raise exceptions with the following condition types:
 &assertion (R6RS)

The wrong number of arguments was passed or an argument was outside its domain.
 R7RS

The assertions described above are errors.
Implementations may signal an error, extend the procedure's
domain of definition to include such arguments,
or fail catastrophically.
SEE ALSO
makevector(3scm),
vectorref(3scm),
length(3scm).
STANDARDS
R4RS,
IEEE Scheme,
R5RS,
R6RS,
R7RS
AUTHORS
This page is part of the
schememanpages
project.
It includes materials from the RnRS documents.
More information can be found at
https://github.com/schemedoc/manpages/
.
Markup created by unroff 1.0sc, March 04, 2023.