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Add 'const' where appropriate to index handling functions

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This is in an effort to make the source index of 'unpack_trees()' as
being const, and thus making the compiler help us verify that we only
access it for reading.

The constification also extended to some of the hashing helpers that get
called indirectly.

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Linus Torvalds
2008-03-06 12:46:09 -08:00
committed by Junio C Hamano
parent bcbe5a515e
commit d1f128b050
4 changed files with 16 additions and 16 deletions
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12
read-cache.c
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@ -255,13 +255,13 @@ static int ce_match_stat_basic(struct cache_entry *ce, struct stat *st)
return changed;
}
static int is_racy_timestamp(struct index_state *istate, struct cache_entry *ce)
static int is_racy_timestamp(const struct index_state *istate, struct cache_entry *ce)
{
return (istate->timestamp &&
((unsigned int)istate->timestamp) <= ce->ce_mtime);
}
int ie_match_stat(struct index_state *istate,
int ie_match_stat(const struct index_state *istate,
struct cache_entry *ce, struct stat *st,
unsigned int options)
{
@ -304,7 +304,7 @@ int ie_match_stat(struct index_state *istate,
return changed;
}
int ie_modified(struct index_state *istate,
int ie_modified(const struct index_state *istate,
struct cache_entry *ce, struct stat *st, unsigned int options)
{
int changed, changed_fs;
@ -412,7 +412,7 @@ int cache_name_compare(const char *name1, int flags1, const char *name2, int fla
return 0;
}
int index_name_pos(struct index_state *istate, const char *name, int namelen)
int index_name_pos(const struct index_state *istate, const char *name, int namelen)
{
int first, last;
@ -1201,7 +1201,7 @@ int discard_index(struct index_state *istate)
return 0;
}
int unmerged_index(struct index_state *istate)
int unmerged_index(const struct index_state *istate)
{
int i;
for (i = 0; i < istate->cache_nr; i++) {
@ -1346,7 +1346,7 @@ static int ce_write_entry(SHA_CTX *c, int fd, struct cache_entry *ce)
return ce_write(c, fd, ondisk, size);
}
int write_index(struct index_state *istate, int newfd)
int write_index(const struct index_state *istate, int newfd)
{
SHA_CTX c;
struct cache_header hdr;