4 extern void prepare_diff_cmd(void);
6 extern void show_differences(const char *name, /* filename on the filesystem */
7 const char *label, /* diff label to use */
8 void *old_contents, /* contents in core */
9 unsigned long long old_size, /* size in core */
10 int reverse /* 0: diff core file
11 1: diff file core */);
13 extern void show_diff_empty(const unsigned char *sha1,