vctrs: vec_list_cast – R documentation

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vec_list_cast

Cast a list to vector of specific type

Description

This is a function for developers to use when extending vctrs. It casts a list to a more specific vectoring type, keeping the length constant. It does this by discarding (with a warning), any elements after the 1. It is called from vec_cast.XYZ.list() methods to preserve symmetry with vec_cast.list.XYZ().

Usage

vec_list_cast(x, to, ..., x_arg = "", to_arg = "")

Arguments

`x`	A list
`to`	Type to coerce to
`...`	These dots are for future extensions and must be empty.

Details

See vignette("s3-vector") for details.

vctrs

Vector Helpers

v0.3.8

MIT + file LICENSE

Authors

Hadley Wickham [aut], Lionel Henry [aut, cre], Davis Vaughan [aut], data.table team [cph] (Radix sort based on data.table's forder() and their contribution to R's order()), RStudio [cph]

Initial release