TRIO_QUIET_NAN    589 third_party/libxml/src/trionan.c #  define TRIO_QUIET_NAN FP_QNAN
TRIO_QUIET_NAN    606 third_party/libxml/src/trionan.c #  define TRIO_QUIET_NAN _FPCLASS_QNAN
TRIO_QUIET_NAN    634 third_party/libxml/src/trionan.c #  define TRIO_QUIET_NAN FP_QNAN