cache: mark cache_entry pointers const

Add const for pointers that are only dereferenced for reading by the
inline functions copy_cache_entry and ce_mode_from_stat.  This allows
callers to pass in const pointers.

Signed-off-by: René Scharfe <rene.scharfe@lsrfire.ath.cx>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/cache.h b/cache.h
index 94ca1acf704bd2dfdc561b6b2d3d64740b975f61..43a27e7b338496b218da22e7e57ed45a0b7fddf9 100644 (file)
--- a/cache.h
+++ b/cache.h
@@ -190,7 +190,8 @@ struct cache_entry {
  * another. But we never change the name, or the hash state!
  */
 #define CE_STATE_MASK (CE_HASHED | CE_UNHASHED)
  * another. But we never change the name, or the hash state!
  */
 #define CE_STATE_MASK (CE_HASHED | CE_UNHASHED)

-static inline void copy_cache_entry(struct cache_entry *dst, struct cache_entry *src)
+static inline void copy_cache_entry(struct cache_entry *dst,
+                                   const struct cache_entry *src)

 {
        unsigned int state = dst->ce_flags & CE_STATE_MASK;
 
 {
        unsigned int state = dst->ce_flags & CE_STATE_MASK;
 


@@ -222,7 +223,8 @@ static inline unsigned int create_ce_mode(unsigned int mode)
                return S_IFGITLINK;
        return S_IFREG | ce_permissions(mode);
 }
                return S_IFGITLINK;
        return S_IFREG | ce_permissions(mode);
 }

-static inline unsigned int ce_mode_from_stat(struct cache_entry *ce, unsigned int mode)
+static inline unsigned int ce_mode_from_stat(const struct cache_entry *ce,
+                                            unsigned int mode)

 {
        extern int trust_executable_bit, has_symlinks;
        if (!has_symlinks && S_ISREG(mode) &&
 {
        extern int trust_executable_bit, has_symlinks;
        if (!has_symlinks && S_ISREG(mode) &&