| # File src/library/utils/R/hasName.R |
| # Part of the R package, https://www.R-project.org |
| # |
| # Copyright (C) 2016 The R Core Team |
| # |
| # This program is free software; you can redistribute it and/or modify |
| # it under the terms of the GNU General Public License as published by |
| # the Free Software Foundation; either version 2 of the License, or |
| # (at your option) any later version. |
| # |
| # This program is distributed in the hope that it will be useful, |
| # but WITHOUT ANY WARRANTY; without even the implied warranty of |
| # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| # GNU General Public License for more details. |
| # |
| # A copy of the GNU General Public License is available at |
| # https://www.R-project.org/Licenses/ |
| |
| # "hasName(x, name)" is defined to be the same as "name %in% names(x)" |
| |
| hasName <- function(x, name) match(name, names(x), nomatch = 0L) > 0L |