nan               142 maint/gnulib/lib/isnan.c   memory_double nan;
nan               145 maint/gnulib/lib/isnan.c   nan.value = zero / zero;
nan               147 maint/gnulib/lib/isnan.c   static memory_double nan = { L_(0.0) / L_(0.0) };
nan               157 maint/gnulib/lib/isnan.c     if (((m.word[EXPBIT0_WORD] ^ nan.word[EXPBIT0_WORD])