U1                 41 maint/gnulib/lib/memcasecmp.c       int U1 = toupper (u1);
U1                 43 maint/gnulib/lib/memcasecmp.c       int diff = (UCHAR_MAX <= INT_MAX ? U1 - U2 : _GL_CMP (U1, U2));
U1                141 maint/gnulib/lib/tanl.c  U1 =  6.494370630656893175666729313065113194784E7L,
U1                183 maint/gnulib/lib/tanl.c   v = U0 + z * (U1 + z * (U2 + z * (U3 + z * (U4 + z))));