From: Antoine Pelisse <apelisse@xxxxxxxxx>
Create a GREP_HEADER_FIELD_MIN so we can check that the field value is
sane and silent the clang warning.
Clang warning happens because the enum is unsigned (this is
implementation-defined, and there is no negative fields) and the check
is then tautological.
Signed-off-by: Antoine Pelisse <apelisse@xxxxxxxxx>
---
grep.c | 3 ++-
grep.h | 3 ++-
2 files changed, 4 insertions(+), 2 deletions(-)
diff --git a/grep.c b/grep.c
index 4bd1b8b..bb548ca 100644
--- a/grep.c
+++ b/grep.c
@@ -625,7 +625,8 @@ static struct grep_expr *prep_header_patterns(struct grep_opt *opt)
for (p = opt->header_list; p; p = p->next) {
if (p->token != GREP_PATTERN_HEAD)
die("bug: a non-header pattern in grep header list.");
- if (p->field < 0 || GREP_HEADER_FIELD_MAX <= p->field)
+ if (p->field < GREP_HEADER_FIELD_MIN ||
+ GREP_HEADER_FIELD_MAX <= p->field)
die("bug: unknown header field %d", p->field);
compile_regexp(p, opt);
}
diff --git a/grep.h b/grep.h
index 8fc854f..e4a1df5 100644
--- a/grep.h
+++ b/grep.h
@@ -28,7 +28,8 @@ enum grep_context {
};
enum grep_header_field {
- GREP_HEADER_AUTHOR = 0,
+ GREP_HEADER_FIELD_MIN = 0,
+ GREP_HEADER_AUTHOR = GREP_HEADER_FIELD_MIN,
GREP_HEADER_COMMITTER,
GREP_HEADER_REFLOG,
--
1.8.1.2
--
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