[PATCH v11 09/10] grep.c: do "if (bool && memchr())" not "if (memchr() && bool)"
From: Ævar Arnfjörð Bjarmason <hidden>
Date: 2022-02-16 00:01:32
Subsystem:
the rest · Maintainer:
Linus Torvalds
Change code in compile_regexp() to check the cheaper boolean "!opt->pcre2" condition before the "memchr()" search. This doesn't noticeably optimize anything, but makes the code more obvious and conventional. The line wrapping being added here also makes a subsequent commit smaller. Signed-off-by: Ævar Arnfjörð Bjarmason <redacted> --- grep.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/grep.c b/grep.c
index 2f6a01c52a5..62f2595f68a 100644
--- a/grep.c
+++ b/grep.c@@ -492,7 +492,8 @@ static void compile_regexp(struct grep_pat *p, struct grep_opt *opt) p->ignore_case = opt->ignore_case; p->fixed = opt->fixed; - if (memchr(p->pattern, 0, p->patternlen) && !opt->pcre2) + if (!opt->pcre2 && + memchr(p->pattern, 0, p->patternlen)) die(_("given pattern contains NULL byte (via -f <file>). This is only supported with -P under PCRE v2")); p->is_fixed = is_fixed(p->pattern, p->patternlen);
--
2.35.1.1028.g9479bb34b83