pub type Features2 = usize;Available on (32-bit and ARM, or 32-bit and little-endian and x86, or 64-bit and AArch64, or 64-bit and little-endian and x86-64) and (Android or Linux), or Linux and (32-bit and big-endian and PowerPC, or 32-bit and little-endian and RISC-V RV32, or 32-bit and little-endian and x86-64, or 32-bit and MIPS, or 64-bit and big-endian and s390x, or 64-bit and little-endian and LoongArch64, or 64-bit and little-endian and RISC-V RV64, or 64-bit and MIPS-64, or 64-bit and PowerPC64) only.