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#' Query igraph's version string
#'
#' @description
#' `r lifecycle::badge("deprecated")`
#'
#' `igraph.version()` was renamed to `igraph_version()` to create a more
#' consistent API.
#'
#' @keywords internal
#' @export
igraph.version <- function() { # nocov start
lifecycle::deprecate_soft("2.0.0", "igraph.version()", "igraph_version()")
igraph_version()
} # nocov end
# IGraph R package
# Copyright (C) 2005-2013 Gabor Csardi <csardi.gabor@gmail.com>
# 334 Harvard street, Cambridge, MA 02139 USA
#
# 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.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
# 02110-1301 USA
#
###################################################################
# R_igraph_vers -----------------------------------------------------------------------
#' Query igraph's version string
#'
#' Returns the package version.
#'
#' The igraph version string is always the same as the version of the R package.
#'
#' @return A character scalar, the igraph version string.
#' @author Gabor Csardi \email{csardi.gabor@@gmail.com}
#' @keywords graphs
#' @keywords internal
#' @export
#' @examples
#'
#' ## Compare to the package version
#' packageDescription("igraph")$Version
#' igraph_version()
#'
igraph_version <- function() {
# Better than packageVersion("igraph") because it uses the loaded package
# and is independent of .libPaths()
getNamespaceInfo("igraph", "spec")[["version"]]
}
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