c_4 64 maint/gnulib/lib/unistr/u8-prev.c uint8_t c_4 = s[-4]; c_4 66 maint/gnulib/lib/unistr/u8-prev.c if (c_4 >= 0xf0 && c_4 < 0xf8 c_4 67 maint/gnulib/lib/unistr/u8-prev.c && (c_4 >= 0xf1 || c_3 >= 0x90) c_4 68 maint/gnulib/lib/unistr/u8-prev.c && (c_4 < 0xf4 || (c_4 == 0xf4 && c_3 < 0x90))) c_4 70 maint/gnulib/lib/unistr/u8-prev.c *puc = ((unsigned int) (c_4 & 0x07) << 18)