Method applyFormatting

CvPlot/ext/catch2/inc/catch.hpp:15408–15410

    }

    void XmlWriter::applyFormatting(XmlFormatting fmt) {
        m_needsNewline = shouldNewline(fmt);
    }

    void XmlWriter::writeDeclaration() {
        m_os << "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n";