/* $NetBSD: msg_358.c,v 1.2 2024/03/03 13:09:23 rillig Exp $ */ # 3 "msg_358.c" // Test for message: hex escape '%.*s' has more than 2 digits [358] /* * In the format argument of the snprintb and snprintb_m functions, a bit * position or field width is written as an octal or hexadecimal escape * sequence. If the description that follows starts with hex digits (A-Fa-f), * these digits are still part of the escape sequence instead of the * description. */ /* lint1-extra-flags: -X 351 */ typedef typeof(sizeof(0)) size_t; typedef unsigned long long uint64_t; int snprintb(char*, size_t, const char*, uint64_t); void examples(unsigned u32, uint64_t u64) { char buf[64]; /* expect+3: warning: hex escape '\x01B' has more than 2 digits [358] */ snprintb(buf, sizeof(buf), "\020\x01BIT", u32); /* expect+3: warning: hex escape '\x01b' has more than 2 digits [358] */ snprintb(buf, sizeof(buf), "\020\x01bit", u32); // This mismatch goes undetected as it has only 2 digits, does not mix // case and is in bounds. A spellchecker could mark the unknown word // 'ield' to give a hint. snprintb(buf, sizeof(buf), "\020\x1FIELD", u32); /* expect+3: warning: hex escape '\x01b' has more than 2 digits [358] */ snprintb(buf, sizeof(buf), "\177\020b\x01bit\0", u64); /* expect+3: warning: hex escape '\x02b' has more than 2 digits [358] */ snprintb(buf, sizeof(buf), "\177\020f\x00\x02bit\0", u64); // In this example from the snprintb manual page, the descriptions // that start with a hexadecimal digit must be separated from the // hexadecimal escape sequence for the bit position. snprintb(buf, sizeof(buf), "\20\x10NOTBOOT\x0f" "FPP\x0eSDVMA\x0cVIDEO" "\x0bLORES\x0a" "FPA\x09" "DIAG\x07" "CACHE" "\x06IOCACHE\x05LOOPBACK\x04" "DBGCACHE", u32); }