checkUnderflow    869 lib/pdf/xpdf/Function.cc   GBool checkUnderflow();
checkUnderflow    922 lib/pdf/xpdf/Function.cc   if (checkUnderflow() && checkType(psBool, psBool)) {
checkUnderflow    929 lib/pdf/xpdf/Function.cc   if (checkUnderflow() && checkType(psInt, psInt)) {
checkUnderflow    938 lib/pdf/xpdf/Function.cc   if (checkUnderflow() && checkType(psInt, psReal)) {
checkUnderflow    995 lib/pdf/xpdf/Function.cc   if (!checkUnderflow()) {