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#############################################################################
## Copyright (c) 2010-2022 Rune Haubo Bojesen Christensen
##
## This file is part of the ordinal package for R (*ordinal*)
##
## *ordinal* 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.
##
## *ordinal* 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/> and/or
## <http://www.gnu.org/licenses/>.
#############################################################################
givesWarnings <- function(expr) countWarnings(expr) > 0L
countWarnings <- function(expr)
{
.number_of_warnings <- 0L
frame_number <- sys.nframe()
ans <- withCallingHandlers(expr, warning = function(w) {
assign(".number_of_warnings", .number_of_warnings + 1L,
envir = sys.frame(frame_number))
invokeRestart("muffleWarning")
})
.number_of_warnings
}
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