check_invalid 76 maint/gnulib/tests/unistr/test-u16-prev.c check_invalid (const uint16_t *input, size_t input_length) check_invalid 57 maint/gnulib/tests/unistr/test-u32-prev.c check_invalid (const uint32_t *input, size_t input_length) check_invalid 117 maint/gnulib/tests/unistr/test-u8-prev.c check_invalid (const uint8_t *input, size_t input_length)