S0                321 maint/gnulib/lib/sha256.c #define S0(x) (rol(x,25)^rol(x,14)^(x>>3))
S0                346 maint/gnulib/lib/sha512.c #define S0(x) u64xor (u64rol(x, 63), u64xor (u64rol (x, 56), u64shr (x, 7)))