Move buffer_is_binary() to xdiff-interface.h

[git.git] / xdiff-interface.c

diff --git a/xdiff-interface.c b/xdiff-interface.c
index 10816e95a07c23dda7554c102c306d7e9beca606..963bb89b08e64188ba278587f63f380653b019c6 100644 (file)
--- a/xdiff-interface.c
+++ b/xdiff-interface.c
@@ -122,4 +122,12 @@ int read_mmfile(mmfile_t *ptr, const char *filename)
        return 0;
 }
 
+#define FIRST_FEW_BYTES 8000
+int buffer_is_binary(const char *ptr, unsigned long size)
+{
+       if (FIRST_FEW_BYTES < size)
+               size = FIRST_FEW_BYTES;
+       return !!memchr(ptr, 0, size);
+}
+