public WrapperLongMatrix2D(LongMatrix2D newContent) {
if (newContent != null)
try {
setUp(newContent.rows(), newContent.columns());
} catch (IllegalArgumentException exc) { // we can hold rows*columns>Integer.MAX_VALUE cells !
if (!"matrix too large".equals(exc.getMessage())) throw exc;
}
this.content = newContent;
}
